This is an original GM aluminum intake for a Big Block Chevy engine with retangular port heads and a Holley carb. The casting number is 3933163. The 3933163 intake was designed to be used with the following applications: 1968-1969 L78 396/375HP engine in Camaros, Chevelles, Novas, and fullsize cars and L72 427/425HP engines in Camaros, Chevelles, Novas, and Impalas including COPO and Yenko cars. This is a real deal OEM GM intake with the Winter's Foundry logo. Don't miss this one.

This intake is in very good condition. It is in bare aluminum finish with no paints or coatings. It looks to have never been sand or glass bead blasted and wears its factory finish. Due to this fact, I decided to leave this intake as is for those looking for a survivor piece   The part number, firing order, and infamous Winter's foundry snowflake logo are intact and undisturbed as shown. All theads are in good condition. There is also no porting. The only flaw I see on this intake is some corrosion at the rear coolant block off ports on the underside of the intake that will seal with RTV when installed. Also, the date code is also only partially visible. It looks like it wore away from being moved around since that is the area that contacts the ground. The date is on the underside anyway and does not show when installed.   This is an awesome factory high performance intake for your Big Block Chevy engine.

This is your chance to own the real deal OEM GM 3933163 aluminum intake manifold you have been dreaming about at a GREAT PRICE. Don't Miss Out!

Check out my other listings for more rare and hard to find parts.

Shipping:

The Domestic shipping cost shown is for the Continental US. Alaska, Hawaii, and territories please inquire for a shipping cost.