BTR .650" ULTIMATE RPM SPRING KIT WITH TITANIUM RETAINERS - SK703 160 LB SEAT @ 1

160 LB SEAT @ 1

5 grams and utilize ARP cap hardware

LIFTER TRAY : 1 x BRIAN TOOLEY RACING LIFTER TRAYS - SET OF 4 - BTR95365-4

CAM RETAINER PLATE: 1 x CHEVROLET PERFORMANCE CAM RETAINER PLATE - 12589016

HEAD BOLTS / STUDS : 1 x BTR GEN V LT HEAD BOLTS - COMPLETE SET - BTR/LT1/HBK

BTR .650" ULTIMATE RPM SPRING KIT WITH TITANIUM RETAINERS - SK703 160 LB SEAT @ 1BTR Ultimate RPM Spring kit Sk703 . 650" max lift BTR designed this valve spring kit for use in higher rpm combos ,especially for use with added cylinder pressures found in boosted applications. This kit was designed to help keep your valve train stable in the higher rpm ranges found in today's technically advanced valvetrain systems. Paired with light weight valvetrain components and the proper cam lobe design, we've run these past 9000 rpm in