trickflow 170cc or 190cc heads? stock internals

[88GTBlack]

Trick Flow® Twisted Wedge® Track Heat® 190 Cylinder Heads for Small Block Ford: TFS-51400015 - trickflow.com

Trick Flow SBF Twisted Wedge Street/Strip Heads - 170cc [TFS51400010] - $1,260.03 : Zen Cart!, The Art of E-commerce

those are links to both sets of heads, my setup is track heat upper and lower manifolds, MAC shortys 75mm t/b with a a9L what will work best with stock internals? can I run a radical cam setup with the 190cc twisted wedge heads without PTV issues. THANKS!

 

[liljoe07]

Get the 190's. By far the best bang for the buck.

What do you consider a radical cam?

 

[Tanus]

I'd go with the 190's, but it kinda depends on the power you wanna make, stock internals with handle a good amount (as long as its mechanicly sound)

 

[BYRDPE]

will both these heads work on the stock bottom end without fly cutting the pistons?

 

[liljoe07]

will both these heads work on the stock bottom end without fly cutting the pistons?

Depends on other factors. Generally the TFS design allows for more room where piston to valve clearance is concerned. They have a more "Free Drop" than you standard 20° valve heads. Cam plays a monsterous part in the clearance.

 

[88GTBlack]

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?

 

[liljoe07]

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.

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