does anyone know what the actual cylinder head volume is for the 2.2 and 2200 just tryign ti fugre some stuff out online to make more power. i dont have a cc tube and i need to check my .120 shaved head as well

i also measured the 97 and older and 98 and newer pistons today and the pin height is .202 lower in the 98 and newer further increasing compression ratio

Not sure what volume you want. Here's what I posted for numbers for the 93-97 engine.:

Stock head = 35cc chambers
My head = 28cc chambers
Calculated cylinder volume (minus chamber) for 94-96 stock engine = 274.75 cc based on 8.875 comp ratio
Calculated compression ratio if I bolted my head on a stock engine: 10.8:1

Stock intake port volume: 167cc
Stock exhaust port volume: 67cc

http://www.j-body.org/forums/read.php?f=2&i=427943&t=335594&p=1

-->Slow

how much is taken off of your head slow?

I tried looking up the volume numbers in the version of _____ that I have it was not there.

i have figured out that the 2.2 pistons had 22cc of dish and hte 2200 pistons only have 6cc of dish

working with some engine calculators how do i figure in the .020 of height difference with the 2200 piston? would i take cc's off of the combustion chamber to compensate?

Bob, not sure anymore, but it's a "bunch." I scanned the thread I linked to but I didn't see anything there. I seem to remember having a discussion about just how much we could get away with going beyond the recommended minimum.

mitdr774, I don't have those numbers in my version of _____ either.

-->Slow

i am working on some hard numbers now and will back this all up when we get the motor done. putting the crank and bearings and cam in tomorrow. dont have the pistons yet but when i get them they will be tossed in. taking the head to the shop tomorrow with my OS SS valves

Pistons.... I seem to remember you saying you ran larger pins in a set of customs. Why was that? Have you had problems with stock diameter pins?

-->Slow

no it is just that ross racing pistons only has a pin with a diamter of .830 floating while the stock pin is .804 pressed. not my choice just what we had to do. i am going to berunning the stock rods and 2200 pistons in this motor. just trying to figure out the .020 of pin height difference in the pistons ill get some pics tomorrow. maybe the head guy will cc my race head tomorrow

If you use a Chev 230/250 rod you have some wiggle room at the small end. With a stock pin dia .804 and rod ID at .927 you can install a bushing and offset the bore.

-->Slow

i will get some pics today and start getting stuff in gear

I knew the 98+ dish was much less than half the 97-
IIRC, the stock 2200 chamber I measured was about 60cc.

If the 2200 pin is .020" lower (and I definitely believe it is since my pistons are about .010" out of the hole), what did they do with the extra .020" up top? My ring lands are REALLY low, but they are aftermarket pistons, so I wasn't sure if that is normal?

Stock 2200 quench is then .020" less than the 97-, that's a considerable difference. I think it might be time to stop suggesting 2200 owners shave the block




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