YES, definitely buy new bolts. I had to replace new head gaskets because the stock bolts stretched. As said above, use thread sealer on the lower bolts. After you're done torquing the head bolts, I'd go ahead and put another 10 ft. lbs. on the inboard bolts...
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Russ L
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.
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