Some 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 new "Lite" LS castings do not have enough material to accept the 8500 machining. 

Any manifold that has had our CNC lightening program will not accept a 8500 throttle body. 

Existing manifolds with 4500 bolt spacing will need the bolt holes welded and relocated.