high compression pistons???

[SLo_MKIII]

so im going to replace the piston rings in my car and was wondering should i throw high compression pistons while im at it (12:5:1) would it give me any hp gains on a stock ls? would it hurt my motor in anyway? i dont have a ton of money to start doing springs retainers rods etc...

[CaTcH22]

I wouldnt go 12.5:1. A little high for pump gas and not tuning it. But you could mill the head slightly or get a thinner head gasket and get it in the 10 to 11 range. Much easier.... and cheaper.

[SLo_MKIII]

I wouldnt go 12.5:1. A little high for pump gas and not tuning it. But you could mill the head slightly or get a thinner head gasket and get it in the 10 to 11 range. Much easier.... and cheaper.
would there be any gains? better yet would it be worth the money invested?

[CaTcH22]

Piston money > headwork money. :goodjob:

[jojeezek]

Piston money > headwork money. :goodjob:

Tell me about it....$$$$ I know!!!:crazy:

[J-ROCK]

id go with the head gettin milled

[dorin48]

More compression = power

How much? idk.

Premium only btw one you crest into the 10:1+ range.

[SLo_MKIII]

More compression = power

How much? idk.

Premium only btw one you crest into the 10:1+ range.

only run premium anyways:goodjob:

[Barefoot]

id go with the pistons no that high of a comp. i wouldnt mill the head unless it warped. milling is a 1 way process. so if u dont like u have to but a new head.

[Init2winit]

Just raising the compression alone won't yield much hp increase. Save your money, and put it toward a nice valve job or even a port job on the head.

[scttydb411]

you will see gains, but you'll need to tune it. otherwise, lean and detonation will occur on a stock fuel and timing map.

[CaTcH22]

you will see gains, but you'll need to tune it. otherwise, lean and detonation will occur on a stock fuel and timing map.
x2 :goodjob: Tune it.

[goi_ek]

well if u go through with it keep us posted, i might be interested in doing this too