How much can you mill TFS TW?
 

I just pulled off my TFS TW, and one of the heads are slightly warped.

I was going to just have them surfaced, but if I mill them for a little extra compression whats the max they can be milled?

They have that big 2.02" intake valve so it cant go too far.

If I mill them .030 or .040 what if I need to surface them again in the future? Am I going to have enough head left to do it?

Also if I mill them .030 or .040 how much do I need to have the intake milled?

Or should I just have them surfaced?

Thanks

Skyler

I have my tw heads milled .030 and I didn't have to get intake milled but any more and I would have had it milled. So I can say more than .030 get the Intake cut to match the heads and also check you Piston to Valve clearance.

87 Mustang LX hatchback
302 with Anderson Typhoon Intake,
Accufab 75mm Race TB, Anderson B-31 Custom Grind cam,
TF Twist Wedge Head's, FMS 1.6 Roller Rockers, 80MM Mass Air,
Anderson 4" Power Pipe,180 hp NOS dry, 4.10 gears, Lentech AOD and converter, SSM bars,
70/30 Koni struts, 50/50 rear shocks, 1 1/2" Lowered Moroso springs.
Weld draglites 15x3.5 frt 15x8 rear, 255lph intank w/ NOS booster pump
Not made a pass on this combo. Best last year was 11.980@110mph 1.54 60' w/ Stock motor and 150hp spray

:D