Callies Compstar Mid Weight Forged Crankshaft - 3.500 in Stroke - Internal Balance - 2-Piece Seal - Small Block Chevy SAG143-CM Forged Steel Connecting Rod COMP's Positive Stop PTFE valve

COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than O-ring or umbrella seals

This Fox body drag race pro-style power pan is for 351W with 2 or 4 bolt rear main caps and 164 or 157 tooth flywheel applications

750" long Hi-Tech 5/16" diameter pushrods handle the requirements of today's all-out race engines

Forged 5140 steel "SIR" I-Beam rods include ARP 8740 bolts

Callies Compstar Mid Weight Forged Crankshaft - 3.500 in Stroke - Internal Balance - 2-Piece Seal - Small Block Chevy SAG143-CM Forged Steel Connecting Rod COMP's Positive Stop PTFE valveProduct Description: Crankshaft Compstar Mid Weight 3. 500 in Stroke Internal Balance Forged Steel 2 Piece Seal Small Block Chevy Sold Individually Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the