6.0 Id
Thanks
Thanks
You have to be able to see either behind the water pump/accessories on the front, or behind the flywheel on the back. The head casting numbers are also a good way as long as they haven't been changed.


91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com





