Thread: 292 Pistons
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Old 03-09-2017, 07:21 PM   #6
Classic v6 GMC's
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Re: 292 Pistons

Quote:
Originally Posted by TJ's Chevy View Post
I'm not sure what the stock distance was so I picked the furthest. haha Personally I'd prefer sealed power pistons over those, but you can only get cast aluminum propane pistons from them which would bump your compression to 9.5.1.
With stock compression and a stock cam bigger valves with lump ports won't do a whole lot. 1.84's with lump ports would help for sure, but adding some lift would be the best thing you could do.

Here would be a good cam:
http://www.compcams.com/Company/CC/c...x?csid=58&sb=2

This is a 250 cam so you'd have to have it custom ground on a 292 cam.

4 barrel intake with headers would help to. You'll get better mid range with them.

Really the best thing you could do is bump the compression up for more power, then you would have the low end still. 5-8 pounds of boost would really do it.
Okay I dropped it off at the machine shop and he said we need .040 over pistons.
Can I get .040 over propane pistons? So I would have to run 91?

So if that cam, 1.84 and 1.6 valves, lump ports, 4 barrel and header will make a nice engine then I will do that. Just not sure on pistons.
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