Edelbrock Valve Spring Retainers - BBC Engine Pre Heaters & Components Bolts have 1/4"-20 threads and

Bolts have 1/4"-20 threads and a built-in captured washer

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Combine that with an updated statistics mode and the ability to store multiple vehicles and drivers and you have the ultimate in drag racing training tools

Edelbrock Valve Spring Retainers - BBC Engine Pre Heaters & Components Bolts have 1/4"-20 threads andMade of superior quality steel, machined and heat treated for strength, these retainers have a black oxide finish for rust and corrosion protection. Sold in sets of 16. Edelbrock, Performance, RPM, Ford, Chrysler, Chevy, Olds, Pontiac, Buick, Valve, Spring, Retainer, Steel, Titanium, Rotator, Non Rotator, Set, Kit, 7 Degree, Hardened, Single Grove, 11 32", 3 8",E Street, E CNC, BB, SB, 9602, 9644, 9707, 9708, 9715, 9720, 9721, 9724, 9729, 9730, 9731,