BBK Under Drive Pulley Kit - 5 Rib Serpentine - Aluminum - Small Block Chevy 1985-87 SP950BK and weighs 11

and weighs 11

8 & Block: L

this makes these manifolds 75% thicker to combat cracking due to high exhaust temperatures

up to 30 ft

75 in Center to Center

BBK Under Drive Pulley Kit - 5 Rib Serpentine - Aluminum - Small Block Chevy 1985-87 SP950BK and weighs 11Product Description: Pulley Kit Under Drive 5 Rib Serpentine Aluminum Natural Small Block Chevy 1985 87 Why follow when you can lead! That is the goal at BBK Performance To continue to Lead the aftermarket parts industry as the number one Manufacturer of EFI Performance Parts and Accessories! BBK has lived and breathed EFI performance now for over 20 years & now we are taking that knowledge and experience to another level by introducing new