ARP 134-3103 Motor Mount Bolt Kit for CHEVROLET LS. mount bracket to block. 8 pc.. 8740. 12pt ymm_42 the threads are obtained by

the threads are obtained by stabilised rolling (a specific system to avoid fatigue cracks)

8mm 12pt Features:

750˝ Thread Diameter-Pitch 5/16-18 Grip Diameter 5/16˝ Wrenching 3/8˝ Head Height 0

100˝ Thread Size M12 x 1

ARP 134-3103 Motor Mount Bolt Kit for CHEVROLET LS. mount bracket to block. 8 pc.. 8740. 12pt ymm_42 the threads are obtained bySecure any engine with complete confidence with ARPs rugged motor mount bolts. You can choose between black oxide finished 8740 chrome moly or corrosion resistant stainless steel; choice of hex or 12 bolt head. Kits come complete with flat washers. Specifications Socket Size(s) 12mm 12pt Fits Following Engines: Chevrolet LS Series