Hydraulic rollers, and still running the 750 holleys. Engine guy was thinking 550 maybe more with a bigger carb?

We took it out tuesday and had a little problem with the right transmission. Turns out the cable shift adjustment was a little off. I hope we didn't damage the transmission. We plan to take it back out this afternoon. From what little bit I throttled it I could tell it's gonna be a whole different boat. Probably won't be able to go full throttle til we get hydraulic steering. Here's both motors idling yesterday...

https://youtu.be/HlY0xUMLxOI

Turns out the right transmission is damaged. It slips and has very dirty fluid now.

This is the same transmission that was on the engine that was dropped. The case was cracked in the fall so I swapped all the internals out to another good case that I had. Apparently something did not go right. We will be pulling the starboard engine and transmission out again and sending the trans back off to KC transmission in Washington state.

are they Merc trans missions or Velvet drives?

They are merctrans II

Upgrade to the BW! I got two good running ones that you can have cheap!!

Well boys lets try this again. Transmission is back. Engine/Transmission mated, hanging in the air. Plan to put back in the boat tomorrow. Might have this going by Thanksgiving.

And no Jim, I don't want your borg warners!

What a bummer sorry that happened. Not questioning your knowledge just wanted to make sure you realize you can not hear detonation in a boat.