Brian Tooley Racing Conical Single Valve Spring - Single Spring - 362 lb. - 1.165 in Coil Bind - 1.285 in OD MAH4315MS-15-1 Chrysler:Big-Block RB-Series:413 (6

Chrysler:Big-Block RB-Series:413 (6

2" or 3" Rear Drop

but it often isn’t long enough

the Hays family founded Midway Industries

Brian Tooley Racing Conical Single Valve Spring - Single Spring - 362 lb. - 1.165 in Coil Bind - 1.285 in OD MAH4315MS-15-1 Chrysler:Big-Block RB-Series:413 (6Product Description: Valve Spring Kit Conical Single Spring 362 lb in Spring Rate 1. 165 in Coil Bind 1. 285 in OD Viton Seals Seats Lash Caps Brian Tooley Racing (BTR) started as a small operation fueled by Brian Tooley's passion for engine performance and innovation. In the early 1990s, Tooley began his journey in the performance industry by working on cylinder heads and founding Total Engine Airflow (TEA). Eventually, he shifted to creating custom