1998TA__1991RS

iTrader: (23)

i just bought a set of worked over heads off of a 97 vette for my 98 ta. Im putting a T-rex in at the same time, how much can i mill the heads with that cam and not have to put valve relief pistons in it? and what would my comp/raito be at? thanks guys

GuitsBoy

iTrader: (4)

None at all. With a T rex, youre already pushing your piston to valve clearance to its limits. Either flycut, or dont mill anything.

1998TA__1991RS

iTrader: (23)

what kind of comp would i have with those heads, someone help me please i need to know asap

JZ'sTA

iTrader: (23)

if the heads are unmilled you will have 10:1. If they are milled at all or have larger valves the t rex wont work w/o flycuting.