420 going on the dyno updated 6-30-20
#2665619
06/13/19 08:12 PM
06/13/19 08:12 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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OK who wants to take a guess at what this thing will make.
420 CI 4.065 bore 4.050 stroke 13.5:1 comp Thitek heads 2.18 intake valve flow 390 at 650 Bullet cam 645 640 260 266 on a 110 Ritter low rise intake 1000 HP holley Milodon oil system on C12 fuel
Last edited by biff426; 06/30/20 03:05 PM.
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Re: 420 going on the dyno next couple days
[Re: fbs63]
#2666633
06/16/19 07:41 PM
06/16/19 07:41 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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My guess is "more with 3" plenum spacer"
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2666740
06/17/19 07:43 AM
06/17/19 07:43 AM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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Where do you have timing and do you plan on moving your timing around?
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: BradH]
#2667330
06/18/19 07:08 PM
06/18/19 07:08 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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I'm a Gen III Dummy, but am looking forward to your results.
Also, where is the engine being tested, and on what type of engine dyno? It is a Stuska dyno
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2667647
06/19/19 04:48 PM
06/19/19 04:48 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
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Posts: 15,439
Val-haul-ass... eventually
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I'm a Gen III Dummy, but am looking forward to your results.
Also, where is the engine being tested, and on what type of engine dyno? It is a Stuska dyno At what shop? PA, MD, DE, NJ?
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Re: 420 going on the dyno next couple days
[Re: BradH]
#2667917
06/20/19 11:31 AM
06/20/19 11:31 AM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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I'm a Gen III Dummy, but am looking forward to your results.
Also, where is the engine being tested, and on what type of engine dyno? It is a Stuska dyno At what shop? PA, MD, DE, NJ? Georgetown, DE Performance injection equipment
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2667933
06/20/19 11:43 AM
06/20/19 11:43 AM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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What kind of car is this going in? I can't wait to see track times especially from an East coast track.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2667945
06/20/19 11:55 AM
06/20/19 11:55 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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SO made a couple hits with the 850 dyno carb and timing from 20-26 degrees it liked 22 made 748HP.@7300. Putting the bigger carb and spacers on it and going to play with jetting should be worth some HP. ALso the headers we had to use are 13/4 and the ones going in the car are 2" not sure what if anything that will do. Can't get the 2" to fit on the dyno without reinventing the wheel. Nice, but I think there's more in it. I'll take a s.w.a.g. that the 1.75" headers are costing you about 20 HP over a good set of 2" tubes. Yep, I know where G-town DE is, but haven't been through it in years. My trips from NoVA in that direction tend to go south (OC) or north (NJ) of there.
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Re: 420 going on the dyno next couple days
[Re: racerhog]
#2668062
06/20/19 05:37 PM
06/20/19 05:37 PM
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Joined: Jan 2003
Posts: 5,484 SoCal
Brian Hafliger
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Yep, at least 20HP down with those tubes....maybe more! What was the TQ?
Brian Hafliger
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Re: 420 going on the dyno next couple days
[Re: Brian Hafliger]
#2668186
06/20/19 11:20 PM
06/20/19 11:20 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Nice. Wondering how high you spun it and did the power linger or drop and at what rpm
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668280
06/21/19 10:21 AM
06/21/19 10:21 AM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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What kind of car is this going in? I can't wait to see track times especially from an East coast track. It is going in a 65 Coronet
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668398
06/21/19 03:07 PM
06/21/19 03:07 PM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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What kind of car is this going in? I can't wait to see track times especially from an East coast track. It is going in a 65 Coronet Very nice. I hope all goes well.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668441
06/21/19 05:13 PM
06/21/19 05:13 PM
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Joined: Jan 2003
Posts: 5,484 SoCal
Brian Hafliger
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What we do is use a cam with smooth lobes, stay around .615 lift, hollow stem intake valves, Ferrea beehive or LS double spring and Ti retainer. We also use the Johnson lifter and either 20 or 30wt. oil...no more than 30wt. Also use Manton shafts to keep the rocker motion more stable.
Brian Hafliger
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Re: 420 going on the dyno next couple days
[Re: Brian Hafliger]
#2668468
06/21/19 06:03 PM
06/21/19 06:03 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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What spring are you running? Me and Craig had a long conversation about this a couple weeks ago
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: sixpackgut]
#2668508
06/21/19 08:37 PM
06/21/19 08:37 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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What spring are you running? Me and Craig had a long conversation about this a couple weeks ago Using the manley 221439 springs. I will say the cam has a fast lobe. I wanted to use the hollow stem valves from the beginning but was convinced to keep the solid stems in the heads, still might put them in. My big concern is the lifter pump up with .060 P/V on the intake side. The exhaust is good over .100. How tight have you guys run these things? It did have 15w40 in it and it did have 100+psi of oil pressure, another concern I was planning to switch to 10w30 or lighter. Has anyone used the crower or isky lifters yet? Are the johnsons worth $750? Just steep for a hyd lifter I think.
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668515
06/21/19 08:50 PM
06/21/19 08:50 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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What kind of car is this going in? I can't wait to see track times especially from an East coast track. It is going in a 65 Coronet Very nice. I hope all goes well.
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668519
06/21/19 08:55 PM
06/21/19 08:55 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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What kind of car is this going in? I can't wait to see track times especially from an East coast track. It is going in a 65 Coronet Very nice. I hope all goes well. Here is a picture of my 65 and 66 the 66 has a 426 gen 3 6.1 base motor
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668533
06/21/19 09:42 PM
06/21/19 09:42 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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Nice car. Crowers are Johnson lifters. I dont know of $750 Johnsons. I plan to run the axle oiled Johnsons in my next motor. They cost about 350.
That spring specs are weaker than PSI1515 that I use. Also, the best part about running Thiteks is using a dual spring.
Last edited by sixpackgut; 06/21/19 09:49 PM.
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: sixpackgut]
#2668546
06/21/19 10:49 PM
06/21/19 10:49 PM
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Joined: Jan 2003
Posts: 5,484 SoCal
Brian Hafliger
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Yep, dual springs, johnson lifter, and either go with a slower lobe, or lighter int. valve...you could even go Ti but you'll need to watch your P/V clearance as the margin on the Ti valves is much thicker.
Brian Hafliger
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Re: 420 going on the dyno next couple days
[Re: Brian Hafliger]
#2668550
06/21/19 10:56 PM
06/21/19 10:56 PM
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Joined: Jan 2012
Posts: 1,541 USA
hudsonhornet7x
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pro stock
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Yep, dual springs, johnson lifter, and either go with a slower lobe, or lighter int. valve...you could even go Ti but you'll need to watch your P/V clearance as the margin on the Ti valves is much thicker. Sending a PM your way. Thanks
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668553
06/21/19 11:04 PM
06/21/19 11:04 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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The short travel Johnson's were quoted at $740. maybe I should look around. I would like to talk to Craig about what spring setup works best but I can't find any contact information anywhere. I really don't get the short travel lifter thing. Just measure for pushrod lenght and get a pushrod .020-.030 longer. Or less. Not sure of the growth amount on these g3 but i assume its around .005 If you have fb you can get Craig on messenger. I have his phone number but it might be his personal number I really don't want to give out
Last edited by sixpackgut; 06/21/19 11:07 PM.
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: sixpackgut]
#2668559
06/21/19 11:22 PM
06/21/19 11:22 PM
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Joined: Jan 2003
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Brian Hafliger
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I don't use the short travel lifters....
Brian Hafliger
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668576
06/21/19 11:55 PM
06/21/19 11:55 PM
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Joined: Jun 2003
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sixpackgut
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Thanks for all the input guys all good stuff much appreciated. It just hit me. We talked about those behives on those heads before you even bought them, correct? Put a .010 pushrod in the motor
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2668592
06/22/19 06:22 AM
06/22/19 06:22 AM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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In current motor I have been running for years has been stock lifter. The other set for new engine and the lifter Steff was running is the hylift 2335s lifter
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: fbs63]
#2668666
06/22/19 11:01 AM
06/22/19 11:01 AM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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Throw that sucker in this car.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668794
06/22/19 06:48 PM
06/22/19 06:48 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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Throw that sucker in this car.
Whos car is that? Always wanted one. They look great with big tire too
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: sixpackgut]
#2668796
06/22/19 07:02 PM
06/22/19 07:02 PM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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Throw that sucker in this car.
Whos car is that? Always wanted one. They look great with big tire too Brad watt had a picture of it and a post looking for this car for a Friend. A for sale ad came up shortly after that. I think it’s in Ohio
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668797
06/22/19 07:05 PM
06/22/19 07:05 PM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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I think an 8 second Gen 3 would look pretty cool planted between the frame rails
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668798
06/22/19 07:16 PM
06/22/19 07:16 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
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I think an 8 second Gen 3 would look pretty cool planted between the frame rails If I had you money I would buy it
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: sixpackgut]
#2668801
06/22/19 07:27 PM
06/22/19 07:27 PM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
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I think an 8 second Gen 3 would look pretty cool planted between the frame rails If I had you money I would buy it If I had your money I would build a Gen 3.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 420 going on the dyno next couple days
[Re: pittsburghracer]
#2668839
06/22/19 09:49 PM
06/22/19 09:49 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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I think an 8 second Gen 3 would look pretty cool planted between the frame rails If I had you money I would buy it If I had your money I would build a Gen 3. Lol touche
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2671328
06/28/19 09:46 PM
06/28/19 09:46 PM
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Joined: May 2004
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Dragula
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SO made a couple hits with the 850 dyno carb and timing from 20-26 degrees it liked 22 made 748HP.@7300. Putting the bigger carb and spacers on it and going to play with jetting should be worth some HP. ALso the headers we had to use are 13/4 and the ones going in the car are 2" not sure what if anything that will do. Can't get the 2" to fit on the dyno without reinventing the wheel. I was within 8hp,,,,,,,,Nice little beast there.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2750934
03/11/20 09:49 AM
03/11/20 09:49 AM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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All the updates are done its back on the dyno hopefully we can make in the 775hp range updates Short travel lifters Manton Shafts Vac pump Spring change to PSI 1516 lash caps putting the 2 inch header on it We had some valve float issues on the last pulls we made before the updates
Last edited by biff426; 03/11/20 09:50 AM.
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Re: 420 going on the dyno updated 3-11-20
[Re: biff426]
#2750994
03/11/20 01:03 PM
03/11/20 01:03 PM
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Joined: Jan 2005
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HotRodDave
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Am I reading this all right that you made 750ish HP with stock rockers and lifters?
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2751799
03/14/20 11:25 AM
03/14/20 11:25 AM
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Just-a-dart
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Made a couple light pulls but the puke tank is getting a ton of oil through the vacuum pump. I have the Ritter intake and have the pickup for the vacuum pump coming out of the oil fill. The valve covers are not very friendly for a fitting. Who has ever used a vac pump on one of these and where do you put the fitting. We leaked the engine and it leaks 4% cold so I don't think it's that the engine has blowby. This thing is pushing a bunch of oil in the higher RPMs. I also use a Ritter intake and a vac pump, very little oil in the tank. I drilled and tapped the manifold just under the oil filler and drilled and tapped the other side of the intake at the passage in the head. I put a tee in the vacuum line and pull from both sides on the engine. This way I cut down on the air speed and it does not pick up as much oil.
"Just a Bracket car dressed up like a streetcar"
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Re: 420 going on the dyno next couple days
[Re: fbs63]
#2752004
03/14/20 09:32 PM
03/14/20 09:32 PM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
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Sorry to hear of your family issues. When does it start to float? How high are you wanting to spin it? Maybe the lobes are too aggressive? It starts around 5400 and just gets worse. Funny thing is it didn't do it on the first couple pulls. Almost like the lifters pumped up. I really think it is still a lifter preload issue. It is so hard to get a really accurate measurement with the way these engines are setup. It sucks adjustable rockers cost so much. The cam is pretty aggressive so it is not helping. With 5 hits and none of them really hard hits all under 6500 it has already scuffed the lash caps pretty bad so it is not happy. The good thing is with the fitting in the valve cover I am getting hardly nothing in the breather tank. The geometry is really not the best after looking at the lash caps the pattern is from bottom to top of the cap. The rocker is srubbing the entire lash cap. The rocker shaft seems like it needs to be shimmed up from the pedestal and it would be better. I would like to turn it 7200-7400. I am not sure how the T&D stuff installs but it would be nice if you could shim the shafts with the T&D setup.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2752198
03/15/20 04:04 PM
03/15/20 04:04 PM
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Joined: Jun 2003
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sixpackgut
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I don't see how you can do a double spring with the stock rockers so it looks like double springs and rockers. Piston to valve is really tight on the intake side and I just don't have the room for a Ti valve with the additional margin. I have the valve pockets as deep as they can go. When you start getting away from stock these engines are pretty tricky. I may just sacrifice the power and put a milder cam in it. I just don't have the time to keep going down this road. I would assume Craig @Thitek simply specs a beed lock groove lower on the stem to run a double spring retainer that works with stock rockers. Even the 2.16 valve that Thitek uses is extremely heavy compared to stock Apache valve
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2773084
05/10/20 08:57 AM
05/10/20 08:57 AM
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Joined: Nov 2003
Posts: 1,834 NW Indiana
fbs63
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top fuel
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Did you test the seat and open pressures of those springs? Its possible to get a bad batch. I had some Manley NexTek that were bad.
Last edited by fbs63; 05/10/20 08:58 AM.
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Re: 420 going on the dyno next couple days
[Re: fbs63]
#2773119
05/10/20 10:32 AM
05/10/20 10:32 AM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
OP
super stock
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OP
super stock
Joined: Apr 2005
Posts: 935
Deland, Florida
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Did you test the seat and open pressures of those springs? Its possible to get a bad batch. I had some Manley NexTek that were bad. We tested the springs and they are pretty much spot on 140 on the seat and 400 at max lift. I am thinking about going to the hollow stem valve maybe. They are like 12 grams lighter. I am not sure about 400 open with hollow valves. Or just doing a dual spring. The problem is I can't seem to find all the pieces (locks, Retainers) that will work with the spring diameter I think I need. I have 3/8 heavy wall pushrods in it and the lifters are heavy. I have always been told the weight on the cam side of the rocker is not a big factor. I would really like to get some input from someone who has run this 2.18 valve over 7000 RPM I can't be the first person to do this. I don't have ANY piston to valve to put a thick margin titanium valve in it. Options are limited on these things. If anyone has any input I am all ears.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2773390
05/11/20 06:53 AM
05/11/20 06:53 AM
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Joined: Jan 2003
Posts: 3,871 Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,871
Smyrna, South Carolina
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Those Harland Sharp Rockers? I have the T & D's and they don't look like that. I'm not running a 2.18 Intake, but I am close, running a Steel 2.165. Don't know the weight but I've routinely spun my motor to 8000 every pass for years with the only issue of trying to get a 3rd season on a set of shimmed solid Hyd. Lifters. One of the Plastic Retainers started getting sloppy and a Lifter was trying to rotate and hurt the Lobe. I also had 3 others where the Roller Needle Bearings were not smooth when spun with your finger. I never noticed any issues when lashing valves or post race inspections. And in fact, it ran it's fastest passes with the hurt lifter and cam. Again, I was going on my 3rd season with them and never inspected them in the off season. Had I been smart and ripped the Heads off to inspect the LIfters, I would have caught it. I will NEVER do that again!! Take it from me, every off season, Rip the Heads off and inspect or better yet, replace the Lifters and the Guides. Cheap insurance. For Spring, I run the Pac 1237X Dbl. Valve Spring on my Thiteks. Next time I have the Heads freshened up, I'm going to go larger on the Intake Valve and change material to Ti. I've also switched to Jesel Dogbone Lifters. I won't be shimming Lifters solid anymore.
Last edited by STEFF; 05/11/20 06:54 AM.
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Re: 420 going on the dyno next couple days
[Re: STEFF]
#2773446
05/11/20 10:32 AM
05/11/20 10:32 AM
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Joined: Apr 2005
Posts: 935 Deland, Florida
biff426
OP
super stock
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OP
super stock
Joined: Apr 2005
Posts: 935
Deland, Florida
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Hey Steff Yes they are Harland Sharps after talking to them a few times I decided to go with their rockers. I was going to shim the lifters I have but what is the deal with the Jesel lifters. Do you need to machine the block to use them? I really didn't want to disassemble the short block. I am thinking I need some more spring but I think Craig uses a custom valve with the lock grooves moved around, these heads from Frankenstein have Manley valves and with a dual spring retainer the valve tip is pretty low in the retainer and it is real sketchy with clearance to the rocker.
Last edited by biff426; 05/11/20 10:32 AM.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2773489
05/11/20 12:12 PM
05/11/20 12:12 PM
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Joined: Jan 2003
Posts: 3,871 Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,871
Smyrna, South Carolina
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They make a Dogbone style Lifter with a Steel Guide, They are a Bolt-in in the Block. However, you will need longer pushrods (about 1 1/2" longer) and also have to check pushrod clearance in the head, thru the travel of the valve. The Pushrod Seat in the Lifter is just above the Roller, so it is deep into the Lifter. The reason behind it is to reduce the side load on the Lifter with the seat being deep in the Lifter body, versus being at the top of a stock lifter. Only bad thing about them is cost. They're about $210-230ish per Lifter plus the cost of the Guides at about $330ish for the kit. I lucked out and scored a perfect, low use, used set for a lot less than new. Otherwise I wouldn't have them. Another plus side is they are rebuildable.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2773518
05/11/20 01:37 PM
05/11/20 01:37 PM
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Joined: Jan 2012
Posts: 1,541 USA
hudsonhornet7x
pro stock
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pro stock
Joined: Jan 2012
Posts: 1,541
USA
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Re: 420 going on the dyno next couple days
[Re: fbs63]
#2773815
05/12/20 10:17 AM
05/12/20 10:17 AM
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Joined: Jan 2012
Posts: 1,541 USA
hudsonhornet7x
pro stock
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pro stock
Joined: Jan 2012
Posts: 1,541
USA
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Very Nice! Who makes those? Don't get the logo. Hi Bob, If you go to facebook and contact Erik Storms he sells them.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2792539
07/04/20 08:01 AM
07/04/20 08:01 AM
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Joined: Oct 2017
Posts: 80 Australia
aus370
member
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member
Joined: Oct 2017
Posts: 80
Australia
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Good to see you got it sorted. Were you still using the 1 3/4 dyno headers.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2802166
07/28/20 03:07 PM
07/28/20 03:07 PM
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Joined: May 2004
Posts: 12,383 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
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OK shimmed the lifters solid, put the HS rockers on. Valve train issues are gone!!!!! Made 751HP at 6900 and 602LBFT at 5400. Everything is happy and this thing is going in the car. I was really hoping to make closer to 800HP but I think to get another 50HP is going to take getting a little crazy with things. I am not willing to spend anymore on this deal. Hopefully I can get the car together by the end of the season and make some hits to backup these numbers. Well, I guessed 740hp....But I had seen a very similar build. Congrats...
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2807827
08/11/20 07:36 PM
08/11/20 07:36 PM
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Joined: Oct 2017
Posts: 80 Australia
aus370
member
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member
Joined: Oct 2017
Posts: 80
Australia
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Took the car out for the maiden voyage Saturday. Air was terrible 90 degree heat high humidity and for some reason I never checked my throttle operation before going to the track and it was not opening all the way, I have to get that figured out I am losing about a 1/4 of travel. The car still went a best of 10.07 @ 134. Not bad for an all steel including the scoop 65 Coronet. I think the ET and MPH backup the horsepower numbers and it still has more in it. The scales were not open so I couldn't weigh it but I am saying it probably weighs 36-3650 with me in it. Congrats on the 10.0 , sounds like high 9's next outing.
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Re: 420 going on the dyno next couple days
[Re: biff426]
#2891565
02/21/21 04:58 PM
02/21/21 04:58 PM
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Joined: Feb 2021
Posts: 70 Souderton
Taylor
member
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member
Joined: Feb 2021
Posts: 70
Souderton
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420 cubes and they are Harland Sharp rockers. The Harland Sharp rockers are fine you just have to shim the lifters solid. The way the Gen 3 Hemi oils the lifter these rockers will not work with a Hyd lifter. Any issues with the Harland rockers ?
04 Ram 4x2 11.66@ 122 4750LBS ...phat pig Moves for fully loaded truck with NA 345ci Hemi 2020 1320 Challenger....stock daily driver.
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