4agze pistons ina 7afe???, will they fit? Options

[StreetRacing10PS...]

I herd from a few ppl that 4agze pistons will fit in the 7afe, only thing is is that i thought the 4agze was a 1.6 and being that the 7afe is a 1.8 how would they fit?? Would the 4agze pistons be too small??

[Dr_Tweak]

The answer to your question is in this thread. But to lay it right out, it's like this:

If you want 15 psi, you have two options.

1. Do a 4AGE head swap and use the 4AGZE 8:1 pistons which will give you about 8.5:1 CR

2. Get custom forged low compression pistons. Have a look at http://www.importperformanceparts.net/ they have a complete 7AFE rebuild kit with ROSS/Wiseco forged pistons in any compression ratio you want for only $889... that's a sweet deal.

-Dr Tweak

*edit* Oh and I forgot: Never ever ever ever use a thicker head gasket to lower your compression. By doing that, you eliminate the quench (squish) area in the combustion chamber which will increase combustion temperatures and cause massive detonation and preignition problems. Worse than if you had left it at stock compression.

This post has been edited by raven_101: Apr 25, 2005 - 3:07 AM