How much will 0.39 head gaskets lower compression compared to 0.50 on E7s,

[emagdnim]

Yet another question!
I know theres a formula to calculate this I just dont know where to find it thanks.

Woops I meant to say raise compression not lower in the topic!

 

[vikingpower]

I calculated about a half a point increase when swapping to TW heads and .039 Fel Pro Gaskets, but it sure seems like more, the TW chambers look a lot smaller than 6cc difference from the E7 heads... swapping gaskets aint gonna give you much though, definitely not worth the trouble.

 

[emagdnim]

Ya true , I was just wondering since I will be having the heads off soon if its worth the swap.

 

[Grn92LX]

Probably around a .2 increase