I wasn't sure if I should post this in the engine tech or forced induction forums.

I know our motors don't like boost with their high compression. Trickflow has their boost friendly heads that lower compression.

Is anyone here running the stock motor with Trickflow heads and a bolt-on supercharger or turbo?

What's the new compression ratio with the Trickflow heads?

Would be cheaper/better to get Trickflow heads or lower compression pistons?

 

Not changing anything else, your stock compression would be 9.64 with 62cc heads. That's also using another .049 thick head gasket.

For several reasons that isn't desirable but quench is the first concern. Ideal quench is .035-.045... you'll be at .049 plus .025 deck height.

The weakest part with boost are the hypereutechtic pistons... typically a ring land crushes.

So, the weak link isn't only compression, but primarily the pistons.

 

You can get AFRs with bigger combution cambers like 76cc I think.