trickflow 170cc or 190cc heads? stock internals

88GTBlack

New Member
Dec 17, 2009
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I have plans for boost in the future and more than likely go with a custom grind cam. So 190cc heads wont be overkill and I wont have PTV issues with stock cut pistons?

You will need to get with the guy grinding your cam. Any good grinder can design a cam that should clear. But it kinda ties their hands a little. The engine on my stand has stock pistons, but I choose to notch them out myself, just for that fact.

But as with anything of this nature, you still need to check the PtV clearance as there are other factors that have an effect on PtV that the cam guy doesnt know exactly. Most may figure a piston at Zero Deck, and if your are out of the hole, then the clearance is shortened by that much. Ive installed TW heads twice and both had plenty of clearance with the TFS 1 cam. But still check the PtV.:nice:

No they are not overkill. Dont let anyone tell you different.