Manifolds

[ceteejr]

I need new manifolds, risers etc. on 350 HP 454 Crusaders.
Are the Crusader manifolds worththe extra money or should I go with one of the off brands- OSCO, etc ??

[T380Fisher]

My boat is a 1990 with 454's. I have replaced the Risers and Manifolds twice in 12 years. The first time in 1997 I replaced the original Crusader manifolds (due to a failure witch allowed water to enter the engine) with the OSCO brand and the second time in 2005 as a PM, not cause of failure. The OSCO's have worked just fine.

If you need a Heat Exchanger, there is a company in Washington State called SEAKAMP Engineering, Inc. Their product is way better than OEM and they can be found for a couple hundred cheaper than Crusader parts.

[Tuna Taxi]

When I had a gas boat I used OSCO manifolds and risers without any problems.

[fishfighter]

OSCO's.Complete set up for under $450.

[nautiduck]

I replaced my risers with OSCOs on my sbc 350 and I had no problems with them the gasket seat areas were machined a lot better than the OEMs that came on the boat. I wouldnt spend the extra bucks for OEM. I think Sierra also makes Crusader manifolds and risers alot cheaper than OEM

[Questsportfishing]

they just work and seal good. you can buy them online and they have all the ports you need for any other cooler lines. If you ever get a chance look at the 6bta cummins you can get total rebuilds with 2 year warrantees from cummins and they are not expensive and they have lots of parts. the 454's are like 35-45 gph going no where...