Trans-Dapt V-Belt 2-Groove Crankshaft Pulley - 7.3 in Diameter - Black Powder Coat - Short Water Pump - Small Block Chevy BR20054 Less resistance means more energy

Less resistance means more energy is going to make it to the spark plug to ignite the air/fuel mixture

AN-06 size with a 40 micron stainless steel element and black anodize finish

Supplied is (8) 1/2" Grade 8 bolts

Fits 1986-1990 Chevrolet Corvette with 5

Trans-Dapt V-Belt 2-Groove Crankshaft Pulley - 7.3 in Diameter - Black Powder Coat - Short Water Pump - Small Block Chevy BR20054 Less resistance means more energyTrans Dapt Performance Crankshaft Pulley, 2 Groove, 1955 1968 Chevrolet 283 350, Short Water Pump Asphalt Black Powder Coat 283 350 SB Chevy O. E. M. Powder Coated pulley. Crankshaft 2 groove, Short water pump pulley style (1955 68) Trans Dapt Crankshaft Pulley 8603 7. 3 in. Diameter 1 3 8 in. Depth Double Groove Short Style Black Satin Powder Coated Crankshaft Pulley Vehicle Applications: 1957 1968 Chevrolet Corvette 1959 1968 Chevrolet El Camino