8500 Accufab Carb Pad - Throttle Body Machining Deck Height_ 9.5" All standard finished cylinder head

All standard finished cylinder head pricing comes with CHE Ductile Iron Valve Seats

No more left and right unequal length runners

Available options are Bronze CHE valve seats

400" lift with a 2

8500 Accufab Carb Pad - Throttle Body Machining Deck Height_ 9.5" All standard finished cylinder headSome BE LS and all Ford Manifolds can accept an 8500 Accufab throttle body. Includes drilling new throttle body mounting locations to suit the 8500 throttle body along with the machining of the larger throttle bores and hand blending of the plenum to the new larger carb pad opening. This option can only be added to a new manifold order. Only the original style LS 5. 0 Manifold castings with the 2 Piece central flange will work with this option. The