Howe Spring Rubber - Fits 5"-5-1/2" Coil Springs - Hard - 20# 4000501 8 AN Male to 3/8

8 AN Male to 3/8 in NPT Male Swivel

Drive by Wire

this dual-plane intake is designed for the engine swap market utilizing 1985 & later Chevy 200-229-262 c

maximum advance or retard

2-1/16" Diameter

Howe Spring Rubber - Fits 5"-5-1/2" Coil Springs - Hard - 20# 4000501 8 AN Male to 3/8Made to fit any 2 1 2", 5" and 5 1 2" diameter coil spring. 1 1 4 height. For quick, precise spring rate changes. These spring rubbers are made for racing from a special Polyurethane that out lasts rubber 4 to 1. Maintains 95% of its rate at 180 degrees. Made in soft, medium and hard, the rates are proportionate to the spring rate. Howe Racing Enterprises began building and selling chassis and components in 1971 and since then we have produced