Swift Bump Stop Spring - Round Wire - 2.250 in Free Length - 2 in OD - 3500 lb/in ALL49344 These cylinder heads are designed

These cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c

With Vents

Designed to work with our front sump LS1-LS6 oil pan #15-276

Allows 335mm Wide Tires

Improves low-temp operation by preventing crystallization

Swift Bump Stop Spring - Round Wire - 2.250 in Free Length - 2 in OD - 3500 lb/in ALL49344 These cylinder heads are designedProduct Description: Bump Stop Spring Round Wire 2. 25 in Free Length 2 in OD 3500 lb in Spring Rate Steel Copper Powder Coat Swift Springs was founded in 1997 in Tokyo Japan as a motor sports division of Tokyo Hatsujo Manufacturing Co, Ltd. that has been leading the spring industry since 1924. The purpose was to demonstrate Swift Springs superior engineering in spring by developing the next generation of motor sports suspension coil springs. Swift