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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718769
11/24/19 12:20 AM
11/24/19 12:20 AM
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Joined: Feb 2005
Posts: 20,159
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,159
PA.
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I’m probably going to advance the cam a couple degrees 4 degrees usually works great for me and I would hate your fuel bill. Lol. Why not alcohol
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: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718867
11/24/19 02:09 PM
11/24/19 02:09 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Use at least 3/8" diameter x 0.120" wall pushrods.
Seems like alot of duration on the cam, but it sounds like the engine is going to rev over 7,000 RPM?
Make sure the heads have the long / deep thread inserts for the rocker shaft studs. On my first set of MW victors (early castings), I broke the center rocker shaft stand on both heads.
We modified the rocker stands by milling off the original stands and using the MW type rocker stand blocks which also allowed up to adjust the rocker shaft height.
My second set of MW Victors had longer thread inserts in the rocker stands which should be better, but not wanting to take chances, we converted that head over to use the billet aluminum MW style rocker shaft stand blocks.
Not sure if you already have the rocker arms, but now you can get a paired rocker 5/8" shaft rocker arm system that should be more stable (less flexing) than the single shaft rocker arm system.
Should make 700+ HP, but watch the High RPM power curve for valve train stability issues.
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718957
11/24/19 06:38 PM
11/24/19 06:38 PM
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Joined: Mar 2006
Posts: 9,824
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,824
MI, usa
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Did your buddy have his cam advanced any? I believe it was 4 advanced. Doug
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2719260
11/25/19 06:31 PM
11/25/19 06:31 PM
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Joined: Oct 2011
Posts: 559
Idaho
LaRoy Engines
mopar
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mopar
Joined: Oct 2011
Posts: 559
Idaho
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
I really think it should. This 451 consistently made 750+ hp on unleaded pump gas. 750+ horsepower 451
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Re: Will this stock stroke 440 make 700hp?
[Re: LaRoy Engines]
#2719268
11/25/19 07:09 PM
11/25/19 07:09 PM
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Joined: Feb 2005
Posts: 20,159
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,159
PA.
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
I really think it should. This 451 consistently made 750+ hp on unleaded pump gas. 750+ horsepower 451 The motor now sits in a storage room. Lol. Another dyno queen story.
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: Will this stock stroke 440 make 700hp?
[Re: pittsburghracer]
#2719297
11/25/19 08:33 PM
11/25/19 08:33 PM
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Joined: Oct 2011
Posts: 559
Idaho
LaRoy Engines
mopar
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mopar
Joined: Oct 2011
Posts: 559
Idaho
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
I really think it should. This 451 consistently made 750+ hp on unleaded pump gas. 750+ horsepower 451 The motor now sits in a storage room. Lol. Another dyno queen story. Pittsburgh-guy, You have pretty decent resume. I'm no fancy racer and I now live on Social Security. I'm just a backyard engine mechanic who can't even afford to go racing. But in 2009 I was pretty proud of what my son and I did in an unheated two car garage and a master bedroom turned into a clean room for assembly. To this day I'm still proud of it. In 2004 my son brought me the Dec.1982 Popular Hot Rodding magazine that had an article on a 440 that his grandpa built and said, "Hey, Pop did this back in '82, can't we do something like it?" I told him we needed cylinder heads. He got out his grandpa's old flow bench and began destroying cylinder heads, had a pallet of ruined ones when he brought me a set of iron 452's. They were good enough for us to make 621 HP and 588 LB-FT on pump gas with our first 451 engine. It went into the '71 Road Runner and drove around on the street for awhile. Eventually it made 554 RWHP with 906 iron heads using the same shortblock we used in all the dyno contests. When doing some tests for a contest, where we built a 500 wedge, the 451 made 694 flywheel horsepower @ 9.7:1 compression with 906 iron heads. We entered the 2009 dyno contest held at Comp Cams because we were head hunting Indy Cylinder Heads. The year before the spec heads were Indy heads (SR I believe) and they let Indy Cylinder Heads enter the contest with their own heads. Guess who won? I thought that was kinda corny and so we entered the next year hoping Indy was going to be there again. No such luck. I guess they weren't interested to see how much power they could make with the spec'd Edelbrock RPM head for that year. Our "queen" made 135 HP more than the next closest 451 and only 1 HP less that the highest horsepower engine in the contest, a 500ci engine. In it's lifetime so far the "dyno queen" probably made some 200+ pulls from the first to the last with approximately 50 pulls over 700 HP. It now rests in the 1/2 ton 4x4 shop truck with 452 iron heads and de-tuned to 580 horsepower. "Dyno Queen"? I'm proud of our Dyno King!
Last edited by LaRoy Engines; 11/25/19 08:36 PM.
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Re: Will this stock stroke 440 make 700hp?
[Re: LaRoy Engines]
#2719300
11/25/19 08:39 PM
11/25/19 08:39 PM
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Joined: Feb 2005
Posts: 20,159
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,159
PA.
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It still comes down to the numbers at the track. We all know numbers on a flowbench or DYNO have been know to lie a little with a tweek here or a tweek there. The interwebs and RAGAZINES are full of high horsepower numbers till the rubber hits the pavement.
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: Will this stock stroke 440 make 700hp?
[Re: pittsburghracer]
#2719327
11/25/19 09:55 PM
11/25/19 09:55 PM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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It still comes down to the numbers at the track. We all know numbers on a flowbench or DYNO have been know to lie a little with a tweek here or a tweek there. The interwebs and RAGAZINES are full owf high horsepower numbers till the rubber hits the pavement. Man you're rough PR. The OP asked if his high comp 440 would top 700 hp. Mr.LaRoy stated it should based on his experience. Many others offered their opinion. No et goal was stated by OP. A little off topic but I wish jerks like you had a pair enough to throw your hat in the ring of an engine contest.(But you never would) You should win easily with your flow bench developed La eddys. Oh wait you just poo pooed flowbenches. Then again your flowbench never lies does it? Just everyone else's. I bet you would have a whole different outlook on things. But alas, you are just an old guy that has a flyweight , very well sorted chassis that would run in the 11's with a stock 318 out of a '81 Mirada. Give yourself a big pat on the back. J.Rob
2009 PHR\EMC Competitor
2010 PHR\EMC Competitor
2011 PHR\EMC Competitor
2012 PHR\EMC Competitor
2013 PHR\EMC Competitor
2014 HotRod/EMC Competitor
2015 HotRod/EMC NoShow
2016 HotRod/EMC 3rd place SPEC Bigblock
2018 HotRod/EMC 7th place G3
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Re: Will this stock stroke 440 make 700hp?
[Re: LaRoy Engines]
#2719363
11/26/19 01:53 AM
11/26/19 01:53 AM
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Joined: Jan 2003
Posts: 30,994
Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 30,994
Oregon
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
I really think it should. This 451 consistently made 750+ hp on unleaded pump gas. 750+ horsepower 451 The motor now sits in a storage room. Lol. Another dyno queen story. Pittsburgh-guy, You have pretty decent resume. I'm no fancy racer and I now live on Social Security. I'm just a backyard engine mechanic who can't even afford to go racing. But in 2009 I was pretty proud of what my son and I did in an unheated two car garage and a master bedroom turned into a clean room for assembly. To this day I'm still proud of it. In 2004 my son brought me the Dec.1982 Popular Hot Rodding magazine that had an article on a 440 that his grandpa built and said, "Hey, Pop did this back in '82, can't we do something like it?" I told him we needed cylinder heads. He got out his grandpa's old flow bench and began destroying cylinder heads, had a pallet of ruined ones when he brought me a set of iron 452's. They were good enough for us to make 621 HP and 588 LB-FT on pump gas with our first 451 engine. It went into the '71 Road Runner and drove around on the street for awhile. Eventually it made 554 RWHP with 906 iron heads using the same shortblock we used in all the dyno contests. When doing some tests for a contest, where we built a 500 wedge, the 451 made 694 flywheel horsepower @ 9.7:1 compression with 906 iron heads. We entered the 2009 dyno contest held at Comp Cams because we were head hunting Indy Cylinder Heads. The year before the spec heads were Indy heads (SR I believe) and they let Indy Cylinder Heads enter the contest with their own heads. Guess who won? I thought that was kinda corny and so we entered the next year hoping Indy was going to be there again. No such luck. I guess they weren't interested to see how much power they could make with the spec'd Edelbrock RPM head for that year. Our "queen" made 135 HP more than the next closest 451 and only 1 HP less that the highest horsepower engine in the contest, a 500ci engine. In it's lifetime so far the "dyno queen" probably made some 200+ pulls from the first to the last with approximately 50 pulls over 700 HP. It now rests in the 1/2 ton 4x4 shop truck with 452 iron heads and de-tuned to 580 horsepower. "Dyno Queen"? I'm proud of our Dyno King! Dyno King is a good name for that engine. That was a good one. I was never able to get within sniffing distance of 700 hp with Edelbrock heads. I don't think I ever got much over 600 hp with any of my RPM headed engines. Once the Trick Flow heads came out I was able to make 700+ pretty easily. Your set of Edelbrock heads were definitely a high water mark. That engine really knocked them over at the EM.
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2719394
11/26/19 09:42 AM
11/26/19 09:42 AM
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Joined: Jan 2003
Posts: 13,356
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,356
Marion, South Carolina [><]
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
FWIW I would expect this thing to pretty easily make 700 hp. It's not going to be a low rpm grunt motor by any means though.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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