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97 sohc/dohc piston swap

08-05-2008, 10:09 PM
I have a 97 sohc. I already installed a crane cam, mopar comp., header/intake, tru time gear, etc. and now I think I want to try increased compression. I work at a parts store and I was looking in a sealed power book. From what I can see the sohc and dohc pistons have the exact same measurements (bore, pin, etc.) but the dohc piston has a .035 raised top. I want to try a piston swap. Has anyone attempted this before? If not, maybe it should be looked into. The replacement pistons are $140-150 for the set brand new. If anyone knows why this wouldn't work, please stop me before I pull the head off:iceslolan I've got a set of accel injectors(don't remember how much bigger) add in two steps colder plugs and this could make a lot of power for under $250! Any imput would be appreciated.


08-06-2008, 08:46 AM
DOHC pistons swap right in and will increase your compression. Bigger injectors DO NOT add HP and you don't need colder plugs.

08-06-2008, 02:01 PM
Any idea how much power that would be good for/ what it makes the compression ratio? Do you think the gains are worth the investment?

08-06-2008, 02:39 PM
Compression should be 10.3:1. It won't make much difference until you do more to the engine.

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