So if I were to go with the TFS heads, would they work without getting new pistons? I am going to bebuild, but I wasn't planning on getting new pistons unless I had to.
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-1991 LX 5.0 Sedan, 5 spd (new 'Z' tranny), 3.73, aluminum DS, Hedman headers, 190 LPH, MAC CAI, Flowmaster catback. (170K miles on motor)
Best ET: 14.434 @ 96.04 MPH - 2.205 60' (Radials)
My Notch
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