Speed Pro Premium Piston Rings 4.030" Bore 1.50 x 1.50 x 4.00 mm Thick Standard Tension - Moly Antenna Mount Adapter They are zinc plated for

They are zinc plated for corrosion resistance

1980-1986 GMC Jimmy

Not recommended for use with rubber engine mounts

Direct Drive

Wiring interface/harness is identical to the CD-7

Speed Pro Premium Piston Rings 4.030" Bore 1.50 x 1.50 x 4.00 mm Thick Standard Tension - Moly Antenna Mount Adapter They are zinc plated forProduct Description: Piston Rings Performance 4. 030 in Bore Drop In 1. 5 x 1. 5 x 4. 0 mm Thick Standard Tension Steel Moly 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can