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Old 10-26-2003, 10:11 PM   #20
Dan_in_WA
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Re: Small Block Pontiac 307

Quote:
Originally Posted by 68 Stang
Not and insane amount, but surely enough to show that guy sitting next to me who's boss.
Ah, and this leads me right into the most important concept in hot rodding... You will receive a PM tomorrow.

Before the cam is finally chosen, you'll have to know several things - like the car the engine will go in, final drive ratio, weight of car, transmission type, and so forth.

As far as the pistons are concerned, you may be looking at flat tops. A flat top piston will have the four 'eyebrows' cut into it. A dished piston has a noticeable dish in it. You definitely want flat tops! That will help keep compression ratio up around 9.5:1 or so; there is a formula to figure out compression ratio too.

I'll post it when I find it.

Welcome to Automotive Engineering 101! (No pun intended)

Last edited by Dan_in_WA; 10-27-2003 at 05:46 PM.
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