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CMC4323-120
These Aeroflow Performance OEM GM LS rocker arms feature an upgraded trunnion and install easily on your LS cylinder heads without any modifications and a direct OEM (GM12681275) replacement rocker
Utilizing a billet single 40mm pump hanger with a -6AN male for the feed
AR771-1004
Dart SHP Cast Iron SB Chev Engine Block with 4-Bolt Ductile Caps DA31161111 Pulley Bolts & Studs CMC4323-120Dart SHP Cast Iron SB Chev Engine Block with 4 Bolt Ductile Caps4. 000" Bore, 9. 025" Deck, 350 Mains DA31161111 31161111 Dart's Special High Performance small block meets the need for an affordable, precision machined, cast iron block with superior features. Designed for high performance and heavy duty applications, the SHP block is the ideal starting point for hot rodders, drag racers, circle track competitors, off roaders and high performance