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Author Topic:   engine question
posted August 27, 2004 09:59 PM
i have a 350sbc in a purestock. bored .3o,dome pistons .125, 2.02 1.60 valves,416 heads (58cc). im wanting more power out of this bad boy. what would be the best upgrade? cam,heads,pistons?? thanks

posted August 27, 2004 10:52 PM
there's no single upgrade to give you more power. It all has to be balanced out. If you upgrade to a bigger cam you will also need a set of heads to flow the right air and the intake must also match the heads. Then you'll need a good set of headers to also match the cam specs. What are you running now and what upgrades does your rules allow.
Give us more info on your current cam , intake , carb etc. You might find something that may work with your combo now.
Upgrades to the valvetrain like roller rockers can give some power from reduced friction.

posted August 28, 2004 12:40 AM
i'm gonna have to disagree you'd be amazed what the right cam and getting it degree'd in properly can do for you. bigger isn't always better like you said it's getting that balance. in my class thats about the only difference in any bodies motor is the cam i run a 360 cid and 9-1 compression rule and the guys that have it figured are alot faster then the ones that don't

posted August 28, 2004 02:59 AM
we are running in a 2brl carb cast iron intake class, what are the best comboes to get power out of a resticted engine?? I will be going bigger bore next year. I just would like to know what the best cams to use for a resticted engine are and also what head runners to use. thanks


posted August 28, 2004 03:18 AM
roller cam set up...unless you are in a claimer class i run a restricted 2 bbl class we have a vacuum rule as well as a compression rule but no claim
like racer17j said the cam will make it or break it
also a good intake couldn't hurt along with the cam.........
drive hard or drive home

posted August 29, 2004 02:09 AM
17j I stand corrected. The right cam will be the easiest upgrade. I've always had it drilled into my head about the " whole package ".
We aren't allowed roller cams so I run a Speedway solid lifter cam part # 915-14102 and I love it. It has a 106 lobe centerline .533 .555 gross valve lift.I hear Midwest Motorsports and JR Motorsports has really good cam grinds for a good price.
A 1" carb spacer will help if your allowed, also if it's a cast iron 4bbl intake with an adapter you can grind the center divider down about 1/4".
Make sure you run the right octane with you compression ratio.

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