Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 4125CMDBU Because rear drag race tires

Because rear drag race tires are available in several different sizes

Valve spring upgrade required

Dwell Control Circuit

There Are Few Gauges That Are More Critical

Mid-plate features multiple mounting holes spaced 1/2" apart and a 5/8" offset to work with many different chassis

Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 4125CMDBU Because rear drag race tiresProduct Description: Piston Rings 4. 020 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Plasma Moly 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.