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Water Pump & Thermostat Bolt Kit
Works with Chevy SB & BB
this Made-in-the-USA Dual-circuit cooler includes 2 each 11/32" and 2 each 1/2" barb inlets
RED ZONE Roller Lifters feature the new Marathon Roller Bearing which utilises a larger diameter pin and a shock absorbing thicker outer race for higher fracture toughness
Aluminium Roller Rocker Set 1.6 Ratio (7/16" Stud Mount) PR66910 Crane Cams Water Pump & Thermostat BoltAluminium Roller Rocker Set 1. 6 Ratio (7 16" Stud Mount)Suit SB Chev PR66910 66910 Rid your engine of internal friction with roller tipped rocker arms. The race proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks.