Thread: SBC class engines

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Im a dirt tracker, I race the basic bomber cruiser class, suppose to be stock stuff, but after running a few races ive come to the conclusion there must be tricks to making HP cause these cars fly to be stock lol.....so im looking for tricks and mods to do to chevy 350.......regulation.......4 brow pistons, cast intake, cast stock manifolds, quadjet carb, open chamber heads, 18 pounds vacuum......the basic stuff, I hear that there is ways to lighten the rotating assembly to make quicker motor? anyone know how this is done?

ive heard so much stuff.....bout coating parts, running motor loose stuff like that any info to help gain a edge I appreciate it if anyone knows this kind of stuff.....thks DT

there are alot of different things that you can do to achive better performance. I run a 78 trans am on dirt tracks. although I run super stock I have heard of different things alot of guys do. for starters, if you use the dampner pulley from like a 283 or 327 there smaller and allow the engine to rap up quicker, another thing we have done is shaved our butterflies on the carb .10" this allows quicker response times. Try taking a dremmel or die grinder to the insides of your exhaust manifold also, grind the lip out and itll breath better. we run our timing at 14 degrees advanced, that seems to help. another thing that can be done is get a recurve kit for your distributor, also along with that, unhook the advance and zip tie it open, this seems to help alot. one more thing, off of the engine, try running smaller tires, itll give you faster tire speed. dont know if any of this is help but its some of the stuff that we have tried, feel free to email me if you have any more questions

Once upon a time I helped put in a hidden nitrous system on a Malibu roundy rounder that the son of one of my friends raced. Sure helped get that overweight sled out of the corners!!!! We also used AFCO coil springs, just strip the paint off them and let em rust up a bit, they look just like the stock ones. Also, if you take a good gas filled racing shock and paint it blue with a NAPA decal on it, few people will notice!! The old style "rams horn" exhaust manifolds flow a lot better then the smogger motor manifolds. Fresh air will help the engine breath better, leave the back of the hood up a couple inches from the cowl. An adjustable proportioning valve in the brake lines will help dial in your brake bias. A bit of front brake will help hold the front end down when applied in the middle of the turn.

It ain't cheating if you don't get caught!!

Scoggin-Dickey sells a trick cast iron manifold that works with L31 cast iron heads. Get their free catalog. Will post the url when I get home.