VALVE SPRINGS (16),BBC,HI-PERF,DUAL,665" Rear Springs-5" O.D. x 11" Tall 12" CENTER OF ROD END

12" CENTER OF ROD END TO CENTER OF ROD END

*DUST BOOT

FOR GM LS2/3 ENGINES AND 2007-2019 4

48" STROKE (EXCEPT WITH ALUMINUM RODS)

USE FOR EASY ADJUSTMENT OF SWING ARMS

VALVE SPRINGS (16),BBC,HI-PERF,DUAL,665" Rear Springs-5" O.D. x 11" Tall 12" CENTER OF ROD ENDBBC HIGH PERFORMANCE DUAL VALVE SPRINGS MANUFACTURED FROM CHROME SILICONE TO TOLERATE MORE LIFT, BUILD COMPRESSION, & LAST LONGER SPECS: *SPRING OUTSIDE DIAMETER: 1. 525" *MAXIMUM LIFT: . 665" *210 LB. SEAT PRESSURE AT 1. 900" INSTALLED HEIGHT *215 LB. SEAT PRESSURE AT 1. 850" INSTALLED HEIGHT *240 LB. SEAT PRESSURE AT 1. 800" INSTALLED HEIGHT *410 LB. SEAT PRESSURE AT 1. 300" INSTALLED HEIGHT *425 LB. SEAT PRESSURE AT 1. 250" INSTALLED HEIGHT *430