Hello From Tn Need Help Building 400 For Dirt Late Model

Id need a copy of the race track rules and engine build regulations
id need to know limits on octane or fuel used etc.
at that power level Id want to use alcohol or at least 115 octane gas

and probably stack fuel injection if I had that option

no stock production SBC block will work,
youll need a bowtie or better yet a dart
block youll obviously need to find some engine builder locally to work with,
youll need a dart race style block
https://dartheads.com/little-m2-blocks/
750 plus hp out of a N/A engine is something that can be done but it won,t be cheap
and I doubt your current carb is ideal.
https://kinsler.com/Shop/nascar-tech-article/
look over these, links, but notice they don,t use iron heads

https://rockyengines.com/home/150-f...vy-sb22-complete-race-engine-811hp-560ft.html

https://www.steveschmidtracing.com/...acing-engines/new/427-pro-sportsman-18-degree

obviously you have options

www.summitracing.com

Free Shipping on Orders Over $109 at Summit Racing

Find Parts and Accessories dart shp heads KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing!
www.summitracing.com
www.summitracing.com
a set of those dart heads is almost $1780

youll spend a bit more (about $400 more)on profiler heads but they would easily boost power at least 20-30 hp
www.profilerperformance.com

210cc All American Aluminum 23° SBC Racing Heads, Assembled, Angle Plu

Producer and Seller of aluminum aftermarket cylinder heads, intake manifolds and engine accessories. Specializing in big block chevy ,small block chevy, big block ford and small block ford.
www.profilerperformance.com
www.profilerperformance.com
www.airflowresearch.com

195cc SBC Race Cylinder Head

Air Flow Research's 195cc SBC Race Cylinder Heads are the preferred choice for a more aggressive street or street/strip build. 195cc SBC Race Cylinder Heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for...
www.airflowresearch.com
www.airflowresearch.com
as a general rule, on a SBC performance engine build ,
try to select a cylinder head that reaches or exceeds 250 cfm at .500 lift and ideally 280 cfm PLUS at max lift PLUS

or you could get similar performance to the dart heads for several hundred dollars less
www.airflowresearch.com

195cc SBC Enforcer Cylinder Head

Air Flow Research's 195cc SBC Enforcer Cylinder Heads feature AFR's Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget-friendly cylinder head is...
www.airflowresearch.com
www.airflowresearch.com
 
Last edited:
Id need a copy of the race track rules and engine build regulations
id need to know limits on octane or fuel used etc.
at that power level Id want to use alcohol or at least 115 octane gas
and probably stack fuel injection if I had that option

no stock production SBC block will work,
youll need a bowtie or better yet a dart
block youll obviously need to find some engine builder locally to work with,
youll need a dart race style block
https://dartheads.com/little-m2-blocks/
750 plus hp out of a N/A engine is something that can be done but it won,t be cheap
and I doubt your current carb is ideal.
https://kinsler.com/Shop/nascar-tech-article/
look over these, links, but notice they don,t use iron heads

https://rockyengines.com/home/150-f...vy-sb22-complete-race-engine-811hp-560ft.html

https://www.steveschmidtracing.com/...acing-engines/new/427-pro-sportsman-18-degree
Thanks for your help it is for a dirt track late model stock car, carb only set up, again thank you
 
Back
Top