Description
Sierra 18-1939 Riser
Sierra replacement engine parts are designed to meet OEM specifications. Use with 3-1/2″ I.D. exhaust hose. Material: Cast iron
- Ford Small Block V8 302-351 cu. in.
- GM Small Block V8 305-350 cu. in.
- GM Big Block V8 454 cu. in.
Interchangeable with:
- Barr
- 20-0100
- GLM
- 56140
- Mallory
- 9-40113
- Marine Power
- 0992-593
- Osco
- 99204
California Residents: WARNINGCancer and Reproductive Harm – P65Warnings.ca.gov
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