New to the forum, so go easy on me please.

Trying to revive a 1976 Caldwell 19ft boat with a Berkley 12JE.  The boat originally came with a 455 and 3 point mount.  I received the boat with nothing but the pump in it.

I sourced a late model f460 and installed with a 4 point mount and Hardin exhaust logs.  Now for the dilemma......

My transom exhaust ports are a few inches off from where the Hardin log exhaust ports sit when bolted to the F460.  I tried to flex the rubber exhaust hose, but it's too rigid for the short rise/run distance I'm trying to adapt.

I know many people have dumped the 455 and converted to 454 or 460, so what do they typically do about the pre-existing transom holes? 

I've done a few-

455 to 454,
460 to 454,
And a 460 to 350.

They lined up reasonably well.

The 460 to 350 swap, I had to put the hose on the transom tip, and the snail end, And then bolt the logs to the head. Took a little too finagle it, but went on. I double clamped all the joints. Dish soap is your friend.

Hope this helps.

Dan'l

That's not going to work out.

The exhaust, from the back of the snail has to go downhill. The exhaust that you welded an adapter for, will puddle water into the snail.

Something is amiss with the combo.

Definitely needs the tips in a different spot. I can measure my Eliminator, came with a BBF/Berkeley combo factory, for tip placement, both height and width, using the transom plate as a starting point. I can measure on Saturday.

Over transom headers might be an option.
Dan'l

I was hoping there were a few different types of Hardin Logs for an F460 so I could simply change the manifold or the snails.

I have a set of Bassett headers, but they also run into the transom

heres the manifolds ur gonna need as u can see they have more of a rise on the back side 300.00 +shipping 949 683 3120

Take the snails off and flip flop them and should raise the snails up so they fit

Sent from my SM-G975U using SoCal Jet Boats mobile app

Called Eddie Marine today to inquire about the center riser style manifold, which would definitely solve my problem.  Unfortunately they only make this for SBC and BBC......this is so frustrating!