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Exhaust Manifolds

DescriptionPhotosItem NumberPriceQuantity 
65-67 400 Exhaust Manifolds
Correct reproductions of the original "X" (389269) and "W" (389268) 1965-1967 4-4-2 exhaust manifolds. Will also fit 455's transplanted into 1965-1967 chassis. Sold per pair.

Click here for photo 14-314 429.95
69-72 400 - 455 Exhaust Manifolds
Correct reproductions of the original 4-4-2 "W" (402295) and "Z" (402294) divided exhaust manifolds. As used on all 1969-1972 400-455 applications (including Hurst/Olds and W-30's). These are the highest flowing factory performance manifolds and will also fit all 1965-1975 400-455 applications. Sold per pair. Note: does not include the heat riser valve as used on 1969 models.

Click here for photo 14-312 369.95 Currently out of stock. Back approx. late May 2021
High Perf 330-350 Manifolds
Unfortunately there were never any factory high performance manifolds for the small block applications – even the W-31’s used the exact same crossover (capped) manifolds as the standard 350 2 barrel applications did. For those wanting to improve the performance of their 330 or 350, but not wanting to deal with the hassles and modifications required to use tube headers, we have a perfect solution! These HP cast iron manifolds are patterned after the best flowing Olds manifolds – those used on the 69-72 4-4-2 and W-30. Featuring a center divided port and a 2 ¼” outlet, these manifolds will provide a performance increase over the original style manifolds – all while giving the appearance of being factory equipment!

Click here for photo 14-372 349.95
Oldsmobile Cutlass and Olds 442 W Z Manifold X W Manifold