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With an extremely wide flat rocker bar surface they offer unmatched rigidity for even the most severe valve train environment
BE LS and Ford Manifolds can accept a 6500 Accufab throttle body
These are our smallest port offering and are best suited to SBE heads and camshaft builds running the factory GM plastic manifold
Weighs 25 LBS with fuel rails and hardware
Allows the use of high lift solid roller camshafts and higher spring rates than the factory posts can withstand
CID LS7 12D BE Cylinder Heads 450CFM - 3.7" CSA - Suit 4.125" + Bore Std Exhaust Height (Per PAIR) Gen V LT1 & LT4 Manifold With an extremely wide flatCID LS7 12D 3. 7" CSA 12D BE Cylinder Heads 4. 125" + Bore LS7 Inline 450 CFM Cylinder Heads One pair of Bare 12 Degree Inline LS7 12D 3. 7" CSA 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 for X275, flows an outstanding 450CFM @ . 900" , with 360CFM @ . 500" lift. The heads share the same optimized valve