Wiseco 440 Kit

[Fastest1here]

I just purchased a Wiseco 440 BigBore kit. It was supposed to be a 11:1 piston but when it arrived it said 12.5:1. I'm can't decide if I should keep it or send it back. I'm worried that I will not be able to run premium and I will have to Spend more on Race gas. Also If I put a stage 2 hotcam in will I have to worry about the valves slaping the piston?

Any info would be greatly appreciated.

Thanks,

Jim:

[Extremeracer167]

yeah usually anything over 11:1 u need race gas. 12.5:1 is an awfully high compression to be running in a prett ymuch stock engine. I would personally send it back, cause it wont run right on pump gas

if race gas is an issue..send the mofo back,,and the hotcam should work just fine.with no slap....

[nakomis0]

The specs on Weisco 440 pistons are wrong. A 12:1 piston is about the equivlent to a 11:1.

So I would say thats you are OK. Unless they fixed this, but I dont think they did.

If you want a second opinion on this , go read the 'Have you decked your cylinder' thread. I think thats where i read it.