STANDARD MAIN STUD KIT

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14MM X 2.00 4340 MATERIAL BLACK OXIDE FINISH HEX BROACH FOR EASY INSTALLATION HD WASHERS AND 12 PT HARDENED NUTS INSTRUCTIONS STANDARD LENGTH 12 VALVE & 24 VALVE ENGINES IMPORTANT NOTE:

ALL ENGINE BLOCKS 1997.5 AND NEWER HAVE "ENCORE" BLOCKS (THESE HAVE 2 TURBO OIL RETURN HOLES ON PASSENGER SIDE OF THE BLOCK) AND MUST BE DRILLED & TAPPED TO 14MM X 2.00. THE ENCORE BLOCKS HAVE 12MM X 1.50 THREADS.