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Photo of Exhaust Manifolds, 1969-75 Oldsmobile, 400-455, "W & Z", Larger Ports
Illustrative Only

Exhaust Manifolds, 1969-75 Oldsmobile, 400-455, "W & Z", Larger Ports

Part# : C242417
Sold As: Pair
Ship Size: Oversize 3
Price Match: Eligible
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$366.99
Save an extra $13.10Use USA250 at checkout to see sale price
List Price: $404.95
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Estimated the week of 7/25/2026
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Brand New Castings

Version with larger body and ports

With these custom reproductions you can expect better flow and better performance. Can be used from 1969 and newer Oldsmobile big block engines: 400, 425, 455 with dual exhaust. Larger exhausts can be used with these, designed for 2-1/2" piping but can work with 2-1/4".

Notes

  • SHIP NOTE: Item exceeds standard ground freight size/weight, and is not eligible for free ground shipping.

Find Item In This Catalog

  • 2025 Cutlass, F-85 & 442 61-77 234
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1969–1975 Oldsmobile Cutlass  
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Exhaust Manifolds, 1969-75 Oldsmobile, 400-455,
Exhaust Manifolds, 1969-75 Oldsmobile, 400-455, "W & Z", Larger Ports