Mark IV. Small parts hardware kit. Engines with 2pc. rear main seal.
7.4L / 454 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 70-90
GM
7.4L / 454 OHV V8 16V Chev. 4.250" Bore 70-76
GM
7.4L / 454 OHV V8 16V Chev. 4.250" Bore 71-00
GM, CHEVROLET
7.4L / 454 OHV V8 16V Chev. Big Block 4.250" Bore
GM
8.1L / 496 OHV V8 16V Chev. Mark IV Big Block Stroker 4.250" Bore 70-90
GM
GM454C-CH | 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 70-76
CHEVROLET
GM454T-CH | 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 71-00
CHEVROLET,
GMC