everything you need to know about exaust manifolds and part numbers

[Bt Doctur]

http://www.boatengine.com/wp-content/uploads/2012/05/Manifold_Catalog.pdf

 

[Bondo]

Ayuh,..... Decent info, I tried to put this in the Adults Only section,..... key word is Tried,.....

 

[HT32BSX115]

Hmm......no OMC 460 manifolds in there........

 

[Lou C]

And the ones that are shown as copies of the batwings I don't think were ever made, I checked back when I installed my last OE pair back in 2011. Wound up doing a center riser conversion in 2017 using aftermarket Barr Marine manifolds+elbows and the Volvo 90* 4" to 3.5" exhaust adapters with the Volvo hoses (it all fit perfect like it came that way from the factory)...