Thread: 350 SB rebuild question

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Hi Sniper, what is the casting number on the cylinder heads? The number is cast into the top of the head at the valves, under the valve cover. If you'll post that number, there are those of us on the board who can better cousel you on the parts and procedures necessary to build a near-stock motor that will perform to your expectations.

There are lots of little things that you may not be aware of that can come back to bite you and we'll be glad to help you understand why and how.

Shorty headers will be better than stock log manifolds, but will give up quite a lot of horsepower/torque to long-tube, equal-length headers. The key is to open up the intake and exhaust so the motor can breathe.

The 550 carb will work fine, but you need to bolt it to a manifold that will free up the breathing on the top. You didn't identify the intake you have, but if it's a standard Performer, it's very little better than a stock manifold. Of course it's lighter than a stock cast iron manifold, but that's about all that can be said for it. A Performer RPM or Weiand Stealth might be a better choice, even on a near-stock build in my opinion. In keeping with a wallet-friendly build, either of these can be found used on ebay or craigslist. 7101 is the part number for the RPM non-egr. 8150 is the part number for the Stealth. Look at ebay and craigslist in your area and see if you can find either of them used.

DO NOT BUY ANYTHING UNTIL YOU HAVE THE MOTOR DISASSEMBLED AND HAVE MADE A CONCRETE PLAN FOR THE BUILD. And in particular, do not buy a cam until you have measured everything in the motor and calculated the static compression ratio. We'll teach you how to do this.

Do some searching through these websites for long tube headers. Try to find a set with 3/8" flanges and 1 5/8" primary tubes that will fit an '82 Camaro with a small block. There should be tons of choices. Write down all part numbers that fit, then go shopping for the best price.
http://www.roadsters.com/engines/#Headers