C1 FI intake manifold

[John H.]

I need a little help identifying the applications of the following two adapter manifolds, casting numbers 3768233 and 3748947 for Fuel Injection. Can someone help? TIA, John.

[Joe L.]

Re: C1 FI intake manifold

John-----

GM #3748947 was the manifold used for many later 1957 through 1959 Corvettes (and, passenger cars with FI, too). For 1957 it was used in conjunction with FI units 7014800 and 7014960. For 1958 it was used in conjunction with all FI units. For 1959 it was used in conjunction with 7014900 and 7014900R units.

GM #3768233 was the manifold used for 1960 through 1962 Corvettes. For 1960, it was used alternately with GM #3758932 for all FI engines. It was used exclusively for 1961-62 FI engines.

[John H.]

Re: C1 FI intake manifold

Thanks for the information Joe.
John.