Exhaust Valve, Race Master, 1.550 in Head, 0.314 in Valve Stem, 4.923 in Long, Stainless, LS1 / LS2, GM LS-Series, Set of 8

Valve Spring, Race Street, Dual Spring, 408 lb/in Spring Rate, 1.040 in Coil Bind, 1.300 in OD, Set of 16 for LS Series engines

Dual Valve Springs from COMP Cams® are manufactured from Super Clean™ wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams® Dual Valve Springs exceed the expectations of today’s engine builders and racers.

Designed for LS1, LS2, LS6, LS7 Gen III General Motors applications these dual valve springs are designed for up to .650 lift. These springs can be installed with no machining but require the use of different spring retainers and spring seats.

Part number: 26921-16
Description: Dual Spring
OD: 1.300
ID: .665
Seat Pressure: 135 @ 1.770
Open Pressure: 400 @ 1.220
Coil Bind:1.040
Rates Per Inch: 408