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LS Billet Valve Covers by Williams Performance Products out of California have been a popular choice amongst customers for clearing the popular steel arm valve train brands
Near equal length runners that are 5" in area at the plenum opening with enough material to increase area to 5
6063 - T6 Aircraft Grade Aluminum
Oversize rocker gear posts for maximum rigidity with Jesel rocker gear available for purchase
CID LS7 12D PA (Power Adder) BE Cylinder Heads 400 + CFM - 2.9" MCSA - Suit 4.125" Bore - Std Exhaust Height - 60CC Chamber (Per PAIR) Deck Height_ 9.24" LS Billet Valve Covers byCID LS7 2. 9" MCSA 12D PA (Power Adder) BE Cylinder Heads suit 4. 125" Bore 60CC Chambers LS7 Inline 420 CFM Cylinder Heads One pair of Bare 12 Degree Inline LS7 12D 2. 9" MCSA Port BE cylinder heads CNC ported and valve jobbed with CHE valve guides and CHE Ductile Iron valve seats. Standard height exhaust port fits all existing headers. Developed by Greg Good the LS7 2. 9" Intake port is the smallest LS port we offer on the shaft mount castings. They