Big Block Aluminum Intake Manifold

[Randy H]

Hello All. Does anyone know the history of a GM manifold casting # 3933163 date code March 3 1969. The owner believes that it is an intake used on "Motion" corvettes and that the factory actually removed the plenum divider for the high performance L-88 engines.

Please help.

[Clem Z.]

Re: Big Block Aluminum Intake Manifold

1968-69 396 L-78, L-89, 427 COPO

[Clem Z.]

Re: Big Block Aluminum Intake Manifold

1968-69 396 L-78, L-89, 427 COPO

[Joe L.]

Re: Big Block Aluminum Intake Manifold

Randy and Clem-----

Also, the GM #3933163 manifold was sold extensively over the counter from 1969 right up to this very day. You can still purchase it from GM for about $400, GM list. These manifolds are NOT rare.

[Joe L.]

Re: Big Block Aluminum Intake Manifold

Randy and Clem-----

Also, the GM #3933163 manifold was sold extensively over the counter from 1969 right up to this very day. You can still purchase it from GM for about $400, GM list. These manifolds are NOT rare.