Description
PAC Racing Hot Rod Series Valve Spring Dual Spring 391 lb in Rate 1.050" Coil Bind 1.459" OD HYPLSML11SASPA Fits Small Block Chevrolet 1986 Up WEI7155 Fits Small Block Chevrolet 1986 Up with 1 piece rear main seal with external balance and a 168 tooth ring gear Includes 31 Spring S Spring Differential Pin Lock Bolt w Thread Lock and our High Tech Engine test lab Micro Hardness