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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#368638
07/11/09 06:46 PM
07/11/09 06:46 PM
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Joined: Jan 2007
Posts: 3,695
nc
emarine01
master
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master
Joined: Jan 2007
Posts: 3,695
nc
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Quote:
Carfarmer....
Yeah, I've been engineering the combo to try to take away as much low end torque (Bigger carb, single plane insead of an RPM Air gap and 112 lobe centers) as I can. I want to try to keep the "shiney side up" if at all possible 
This mini stroker (essentially a 318 bore 360-ish stroke) should be a good combination for bracket racing in a short light combo, to keep from flipping I'm starting out with 4.56 gears 9thanks B1Frank!) and a deep gear 998 auto with a 3200-ish stall but with a much smaller 26" x 9.5" Hoosier QTP instead of the 29 x 11.5" I was running. I'm doing 1/8th mile so I'll have to go to the taller tire (or less gear) to run the 1/4 once I get her all sorted out. 
Wise, with that bob weight and stroke that pup is just cryin for a set of main studs with pro-gram caps a 250ish @ .050 solid roller and a little set of wheelie bars  and maybe a little shave on the heads 
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: emarine01]
#368639
07/11/09 07:10 PM
07/11/09 07:10 PM
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Joined: Jan 2003
Posts: 9,873
Weddington, N.C.
Streetwize
OP
master
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OP
master
Joined: Jan 2003
Posts: 9,873
Weddington, N.C.
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Yeah, thought about that. To be honest I just want something that'll go rounds and have fun with whatever ET it runs.....With bracket racing I like to leave first and that would really be the advantage of such a small car that'll be a very small target to chase to the stripe in the 1/8th mile....I'll probably see how fast it'll go and then back it off a couple tenths with a Vac secondary and try to make it as consistent as a swiss watch.
For sure I got an easy 600hp crank and rods in a 450-ish motor, that's ok though cuase it's an interesting combo...if I want to turn up the wick I'll find a real 340 block and just buy slugs and maybe caps then.
Mocked up the oil pump and pan....naturally the big fat rods required knocking down the pump pick up boss with the ol' handy mini side grinder. I went low buck using a rear sump truck pan, i thought about building a scraper for it but the main problem of starvation under a high G launch is solved with the truck pan.....nice to not have to worry about a big ol honkin K frame for a change!!!
Last edited by Streetwize; 07/11/09 07:13 PM.
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: cheapstreetdustr]
#368641
07/12/09 11:24 AM
07/12/09 11:24 AM
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Joined: Jan 2003
Posts: 9,873
Weddington, N.C.
Streetwize
OP
master
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OP
master
Joined: Jan 2003
Posts: 9,873
Weddington, N.C.
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I got to  and I'd offer this suggestion to either Edelbrock or Indy..... Come up with an 'EZ' Style approach and make a smallblock head with a W2/5 (offset rocker) style intake with a standard header flange exhaust....something that will flow 280 @.500 right out of the box without needing an exotic header to work in any A/B/E body. Make a 2.02 that will fit in any 318 based block and maybe a high-flow 2.08 or larger valve Super Victor/Big Easy for the bigger bores w/custom pistons; both should have a modern compact heart shaped combustion chamber of maybe 60cc's that would work with a zero deck flat top. The idea of an off the shelf bona-fide High quality and affordable 500hp smallblock head could be developed/made pretty easily with the right combination of existing molds.  Ford and Chevy have had this option for years and years, done right I can't see why this head would cost more than 100.00 or so more than a standard RPM style head. Also why can't anybody make a high quality but cheap mass-produced stamped offset rocker for guys who want to run the option of a W2 style intake with a mild hydraulic cam? This would take advantage of the much higher lift XE style street grinds without having to shell out mega bucks for an entire roller rocker valvetrain.
Last edited by Streetwize; 07/12/09 11:33 AM.
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#368642
07/12/09 11:53 AM
07/12/09 11:53 AM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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I agree about your head sugestion, the eddy could at least for sure use a better shaped chamber, they could at least rob the one from there magnum head. The one thing about the stamped W2 rocker is the guys who run W2 style heads typically run pretty big cams that need really stiff springs and those tend to punch through stamped steel rockers. The stamping process makes a weak area right in the PR cup, to make them strong enough they would need to be very thick and then they would be very heavy and require even stiffer springs and the W2 style valve train is not very stable as is. However, I think it should be easy enough to make a decent set of say $300 aluminum rockers with a bushing where the shaft rides  there would be a big market for those .
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: 65signet]
#368646
07/12/09 02:07 PM
07/12/09 02:07 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
Quote:
Quote:
you guys running 0 deck flat tops..
and the .560" or bigger cams..?
what did you do for valve to piston clearence?
did you have to fly cut the piston tops?
ive got a .030" over 360 0 deck kb flat tops
with ported j-heads,offset intake rockers and no pushrod pinch. 280" intake runner volume..
going 11.20's with a Tiney .485" solid flat tappet.
want to go .550" roller..but need to contemplate piston machining..
Did you guys find clearence necessary?
id like to just do a cam/valve spring swap..with the motor in the car..
a cam should really pick my duster up..
cheapst
My motor is 5 out of the hole and the biggest cam i could run is 591/610 lift and that is with 1.6 rockers, with KB flat tops no cutting
Duration is more of a factor in VtoP clearance than lift. I have a roller that is 230* at .050 and .605 lift, KB107's .006 out of the hole, with over .120 clearance on both sides.
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: emarine01]
#368649
07/12/09 02:42 PM
07/12/09 02:42 PM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Don't forget head gasket thickness, VJ depth, head millling, rod ratio, LSA, rate of cam lift... all those thing and more come into play
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Show me a 500hp "default" stock stroke 340/360 reci
[Re: HotRodDave]
#368650
07/12/09 11:20 PM
07/12/09 11:20 PM
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Joined: Sep 2005
Posts: 263
CA, USA
JcodeCharger
enthusiast
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enthusiast
Joined: Sep 2005
Posts: 263
CA, USA
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I just read an article in Engine Masters magazine that stated Indy sells an eddy head that has the pushrod hole relocated and uses the W2 offset intake rocker. 
Last edited by JcodeCharger; 07/12/09 11:21 PM.
68 twin turbo Dart 8.19 so far
70 Swinger 360
69 Roadrunner 383 4 speed
69 Mod Top Satellite 383 auto
69.5 A12 Super Bee 4 speed
70 T/A Challenger
70 FC7 Duster 340 4 speed
70 FJ5 Superbird
68 Hemi 4 speed Roadrunner
71 Duster W2 340
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#2512811
06/24/18 11:33 PM
06/24/18 11:33 PM
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Joined: Oct 2015
Posts: 570
UK
rb446
mopar
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mopar
Joined: Oct 2015
Posts: 570
UK
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500 HP will put a 3200 lb. car less than 10.50 @ almost 127 MPH.
3000 lbs.......about 10.20 @ over 129 MPH.
2800 lbs.......9.90s @ over 132 MPH.
___________
3200 x 500fwhp = 10.81@124
3000 = 10.58@127
2800 = 10.34@130
my wallace numbers
1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#2512926
06/25/18 10:14 AM
06/25/18 10:14 AM
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Joined: Aug 2011
Posts: 250
Saskatchewan (SK)
79410aspenrt
enthusiast
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enthusiast
Joined: Aug 2011
Posts: 250
Saskatchewan (SK)
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i'm hoping for 500 hp from my 360''.
10.23:1 compression
W2's that flow 286 @ 600
Victor W2 intake
621/632 lift, 264/268 @ .050 Hughes solid
950 Holley
1.5 rockers
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: 79410aspenrt]
#2512958
06/25/18 11:57 AM
06/25/18 11:57 AM
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Joined: Feb 2005
Posts: 20,169
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,169
PA.
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Well I just called Trickflow and the planned release day for their small block mopar head is in September. I personally am not interested in this head but while talking to their tech department I asked if they planned on releasing another BETTER head in the future like they did with the big block head. They are pretty tite lipped but he said nothing at this time. He did go on to say they were both happy and surprised by the mopar markets sales numbers.
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: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#2512988
06/25/18 01:00 PM
06/25/18 01:00 PM
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Joined: Jan 2003
Posts: 14,494
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,494
So. Burlington, Vt.
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I’m sure a 10.5:1 360 with the TF heads and a smallish roller would break 500hp.
The question would be, how small could the cam be and still get you to the 500hp mark.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: fast68plymouth]
#2512999
06/25/18 01:13 PM
06/25/18 01:13 PM
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Joined: Feb 2005
Posts: 20,169
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,169
PA.
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I'm not big on throwing horsepower numbers out there but my Sons stock crank 360 has gone a nice string of 6.54's in a 3200 pound car with a 727 and 4.10 gears. Edelbrock heads and a 610 lift roller cam. That should be a hair over 500 I would think.
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: Show me a 500hp "default" stock stroke 340/360 recipie
[Re: Streetwize]
#2513020
06/25/18 02:03 PM
06/25/18 02:03 PM
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Joined: Oct 2015
Posts: 570
UK
rb446
mopar
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mopar
Joined: Oct 2015
Posts: 570
UK
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565 if he ran 104mph  and 10.37@129 in the 1/4.
Last edited by rb446; 06/25/18 02:04 PM.
1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
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