Stroker Motor .

[67coronetman]

What would be your choice and post a killer Combo setup for a 440 or a 400 Stroker Motor. That you have done what was your HP & TQ

 

[1967coronet440]

More info needed, what's your budget, hp & tq goals, what are you looking to get out of the motor

 

[dvw]

Depends on what you need. The block with the best sonic numbers is number one. After that I'd take a good sonic 400 over a good sonic 440. My curent engine is a Mopar Mega block 572. Never dynoed but calculates around 900hp. Been 9.02@149, 3345lbs.
Doug

 

[1967coronet440]

Currently I'm building a 505" from a 440 block, eagle rotating assembly, flat top pistons, ported victor heads, EFI, should make around 800hp on race fuel.

 

[67coronetman]

More info needed, what's your budget, hp & tq goals, what are you looking to get out of the motor

I am curious to know what others have done i like to gather info before i make a choice its very interesting to see what others have done and how it worked out and what they would have done different..

 

[67coronetman]

Depends on what you need. The block with the best sonic numbers is number one. After that I'd take a good sonic 400 over a good sonic 440. My curent engine is a Mopar Mega block 572. Never dynoed but calculates around 900hp. Been 9.02@149, 3345lbs.
Doug

View attachment 411131

Nice great looking motor i am using a 400 block standard bore super clean and yes its a 72 block that is so desired..

 

[dvw]

Doesn't matter as much what year block as how thick the cylinder wall is. Recently saw one that broke. Wall was about .100". 800 is really pushing a 440. 800hp 500" is tough to hit. Takes good ported -1 , Victor or better, stiff compression. .750"+ lift, 7500+ rpm. Good luck. My bet if you do make 800 it may break the stock block. I've broke them at 700 w/aluminum main caps and conservitive timing. Current engine is 572, 15-1, 285/292/.800", thin rings, vacuum pump, 7000rpm.
Doug

 

[67coronetman]

Doesn't matter as much what year block as how thick the cylinder wall is. Recently saw one that broke. Wall was about .100". 800 is really pushing a 440. 800hp 500" is tough to hit. Takes good ported -1 , Victor or better, stiff compression. .750"+ lift, 7500+ rpm. Good luck. My bet if you do make 800 it may break the stock block. I've broke them at 700 w/aluminum main caps and conservitive timing. Current engine is 572, 15-1, 285/292/.800", thin rings, vacuum pump, 7000rpm.
Doug

If i can get 650 to 700 hp and really good torque i will be very happy.

 

[dvw]

If i can get 650 to 700 hp and really good torque i will be very happy.

That's far more realistic. I can tell you getting to 900 is tough for the average builder. I build my own. Not many 9.0 N/A B Bodys with factory floor pans and sheet metal.
Doug

 

[1967coronet440]

Doesn't matter as much what year block as how thick the cylinder wall is. Recently saw one that broke. Wall was about .100". 800 is really pushing a 440. 800hp 500" is tough to hit. Takes good ported -1 , Victor or better, stiff compression. .750"+ lift, 7500+ rpm. Good luck. My bet if you do make 800 it may break the stock block. I've broke them at 700 w/aluminum main caps and conservitive timing. Current engine is 572, 15-1, 285/292/.800", thin rings, vacuum pump, 7000rpm.
Doug

Doug, do you happen to work for LSM engineering?

 

[sclee440]

400 Block ('72)
440 Source 512 Stroker kit
10.6:1 (93 Octane Pump gas)
CNC Ported Indy EZ's
Lunati 60333 Solid roller
Indy Tunnel Ram
FiTech Fuel Injection
TTI Headers

734HP
675 Torque

 

[67coronetman]

400 Block ('72)
440 Source 512 Stroker kit
10.6:1 (93 Octane Pump gas)
CNC Ported Indy EZ's
Lunati 60333 Solid roller
Indy Tunnel Ram
FiTech Fuel Injection
TTI Headers

734HP
675 Torque

Nice

 

[dvw]

Doug, do you happen to work for LSM engineering?

No, Chrysler CTC in the electrical lab. I LSM is close to my house though. Just like to build my own stuff. It's as much fun to me as racing. Engines, trans, axle,cage, sheet metal,wiring.
Doug

 

[Canyon707]

My 440 made 550 hp totally reliable bracket car. My new 400 is around 800hp but yet to make a pass. Someday it will stop raining on race days here in Calif.
In the pdf is my 400 build. My best time in the 440 was 10.576. @126

 

[IQ52]

400/451, factory 440 crank, stock main caps and ARP studs, Scat H-beam rods, Ross pistons, 11.7:1, Ported RPM heads, Indy single plane, 1140 cfm custom Dominator, Erson solid roller. Lesse, what else, some other hard parts, and oh yeah, 787 HP on 91 octane pump gas from the Stinker station.

 

[496BEE]

One of the baddest (in a good way) looking engine I've seen. Engine particulars in detail please !

Depends on what you need. The block with the best sonic numbers is number one. After that I'd take a good sonic 400 over a good sonic 440. My curent engine is a Mopar Mega block 572. Never dynoed but calculates around 900hp. Been 9.02@149, 3345lbs.
Doug

View attachment 411131

 

[496BEE]

A 400 based stroker would be the way for you to go. I love my 496 tons of torque and revs fast. They did a great job specing everything out

If i can get 650 to 700 hp and really good torque i will be very happy.

 

[496BEE]

My 496 combo
73 400 block .030 over
1/2" oil pick up
Arp main and head studs
Older 440 super stock twist forged crank with the throws offset ground and hardened. 4.15 stroke
4340 eagle rods with arp bolts
Je custom sportsmen Pistons 11-1 CR (tooled steel pins and locks)
Edelbrock performer rpm heads , ported by Dwayne porter & larger valves installed
Indy 1.6 roller rockers
Crane hydraulic lifters
Custom 3/8" cupped push rods that are open / hollow like a Chevy for better oiling
Double roller timing chain
Hydraulic roller cam 6.15 lift , 240/248 duration, 112 lsa ( Scott brown custom )
m1 intake ported by Dwayne porter
Indy valley cover
Quick fuel 1050cfm carb 4150 flange
1" spacer

 

[dvw]

One of the baddest (in a good way) looking engine I've seen. Engine particulars in detail please !

572 Mopar megablock,15-1, 285/292 on 112 lca .800", ported -1 Indy, Jessel belt, T&D 1.7 paired rockers, 7/16 Trend pushrods, Isky red zones bushed lifters, GZ vacuum pump. And now the real speed secret. Indy box ram with 2 nearly box stock Eddy 750's. On a side note: Canyon 707 did your new motor come from Al A?
Doug

 

[Bobo]

What would be your choice and post a killer Combo setup for a 440 or a 400 Stroker Motor. That you have done what was your HP & TQ