Cadillac 331-429 Log Intake Kit – 6×2, Stromberg

Includes 1 U-Weld Intake Kit for the Cadillac 331, 365, 390, 429 hot rod engine (see engine applications below).  The flanges in this kit are cut with a fiber laser.  This kit is designed to be a dual plenum design with the use of 6 carburetors.  

Engine Application:

Cadillac

            331 cu. in (1949-55)

            365 cu. in (1956-58)

            390 cu. in (1959-63)

            429 cu. in (1964-67)

            *more applications/years may work, verify before purchasing.

Ports designed to be used with 2” OD tubing.

These flanges are designed in CAD and are test fit on an actual head to achieve proper fitment.

Kit Includes:

2 – 3/8” thick, Intake flanges (P&O Steel)

2 – 3” OD, 0.065 wall, 16” long, Plenum tubes

4 – 3” OD, Concave Plenum end caps

8 – 2” OD, 0.065 wall, 3” long, Runner tubes

6 – 3 bolt (Stromberg) carburetor base plates *Please email to request different carburetor bases or quantities if needed.

12 – 1 ¼” OD, 0.065 wall, Carb runner tubes

2 – 1 ¼” OD, 0.065 wall, Cross over tubes