This feed through requires only a 25
MLS Head Gasket 55041 CL55041 Suit GM LS1/LS2/LS3/LS6
including smartphones
The alloy EWP improves engine cooling control & capacity while giving you more power & improved fuel economy
Compression Ratio with 64cc chamber volume: 11
Chrome Moly Steel retainers 1.080" OD, .735" ID (.060" Higher than 507-ST) ISK50 Product:For 5005, 6005, 6105, 6205, 8005-A, 8305, 9005, 9105, 9265 Valve Spri This feed through requires onlyChrome Moly Steel retainers 1. 080" OD, . 735" ID (. 060" Higher than 507 ST)For 5005, 6005, 6105, 6205, 8005 A, 8305, 9005, 9105, 9265 Valve Springs ISK507 STA K507 STA Isky 4130 Chrome Moly Light Weight Steel Valve Spring Retainers are ideal for street and highly stressed competition applications. They are specially heat treated and black oxide finished to protect against corrosion. Set of 16 4130 Chromemoly steel retainers.