Engine Swap

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Engine Swap

Postby TinLizzy » Fri May 26, 2017 8:15 pm

I decided to swap out my 318's for a pair of 350 Chevy's. Has anyone else done this in a 28 express? I think I might run into a clearance issue with the floor, since the Chryslers are real tight as it is. I plan on using the existing 1:1 velvet drive transmissions. Any insight from someone that has done this swap would be appreciated. From what I can tell the 32's had more room under the floor for engine clearance than the 28's.
1975 28 Express-Twin 350 Chevy's, Raw Water cooled
Portage Canal Waterway-Upper Peninsula,Lake Superior

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Re: Engine Swap

Postby Busia » Fri May 26, 2017 10:36 pm

I did it in a 32, and it is tight.--Ed
located in Ketchikan, Alaska. Gods country
32 foot Marinette express. (no fly bridge)
twin 350 Crusader (Chev 350) engines
1:1 Borg Warner velvet drive transmissions
Closed cooling (antifreeze in the engine)
Proud to be retired IBEW

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Re: Engine Swap

Postby Tuggle » Sat May 27, 2017 7:08 am

Looked heavily into a 350 swap for the current 318's, in the end decided to stay with the 318's. Motor mounts, bell housings all the re positioning verses old out and new in was certainly the path of least resistance. Never been a Chrysler fan but after a lot of research found the 318 to be a well proven, reliable engine. Mine were built bone stock, other than being bored 30 over. As this is being written the boat is in the yard for the swap.
"Deplorable", 1975 32' Express, Twin 318's, Raw Water Cooled, Lake Lanier, Ga.

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Re: Engine Swap

Postby Fastjeff » Sun May 28, 2017 6:18 am

Good decision.

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