Osco Marine Manifolds
Since 1932
OSCO Motors Co. has been in the business of providing boaters with a high quality, reasonable cost alternative to original manufacturer's equipment.
All manifolds come with a 3 year warranty and DO NOT include gaskets. Order gaskets and bolts separately. We stock all OSCO manifolds and ship the same day.
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1. FL994  Manifold. Fits 302 - 351 cu.in. Ford small block V8 engines. Replaces Barr # FM-1-83 and Indmar # 53-2008. Use mounting kit FL994-MK.

2. FL994-MK Mounting Kit, manifold. Fits FL994 manifold. Includes FL-GH gasket and mounting hardware.

3. FLGH Gasket, manifold to cylinder head. Included in FL994-MK mounting kit.

4. 99204 Riser, 4" outlet, 10º down angle. Replaces Barr # 20-0100. Use mounting kit 992-MK or 992-MK-FW.

5. 992 Riser, 3" outlet, 10º down angle. Replaces Barr # 20-0082. Use mounting kit 992-MK or 992-MK-FW.

6. 2018 Riser, 3" outlet, 30º down angle. Replaces Barr # 20-0102 and Indmar #'s 53-2009 and 53-2018.
Use mounting kit 992-MK or 992-MK-FW.

7. 9943S Spacer, 3". Fits FL994 manifold. Replaces Barr # 20-0097. Use mounting kit 992-MK or 992-MK-FW. Riser #’s 2018, 992 and 99204 will require their own mounting kit.

8. 992-MK Mounting Kit, riser and spacer. Open. Fits riser #’s 992, 99204, and 2018 and 994-S3 spacer. Includes 992-G open gasket and mounting hardware.

9. 992-G Gasket, riser. Open. Fits 992, 99204, and 2018 risers and 994-S3 spacer. Replaces Barr # 1-0107. Included in 992-MK mounting kit. 

10. 992-MK-FW Mounting Kit, riser. Blocked. Fits 992, 99204, and 2018 risers and 994-S3 spacer. Includes 992-G-FW blocked gasket and mounting hardware

11. 992-G-FW Gasket, riser. Blocked. Fits 992, 9920

12.F68C9 Water Fitting, 90º elbow. 3/4" MPT x 1" hose barb. 

13.F68CS Water Fitting, 90º elbow. 3/4" MPT x 1" hose barb. 

14.F66CS Water Fitting, straight. 3/4" MPT x 1" hose barb.

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