The Ford Barn

ole39 · 03-12-2025, 12:09 PM

i have a 49 merc crank and bearings, will these work in a 59a? also, what about the clutch?

Kurt in NJ · 03-12-2025, 12:17 PM

The rear main has to match the block
The rod bearings have to match the rods
The flywheel has to match the block

Bored&Stroked · 03-12-2025, 12:52 PM

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You'll use the main bearings for a 59A and whatever rod bearings match the rods you're using.

If you have them, I'd go ahead and run the later 49-53 rods with the insert bearings. If you don't have these rods, I'd find a set and have them rebuilt.

There is no great reason to run 59A full-floater bearings and rods unless you have already purchased/own them and the rods/bearings have been correctly setup. There are very few machine shops that know how to setup full-floater bearings these days.

03-12-2025, 12:09 PM	#1
ole39 Senior Member Join Date: May 2010 Location: west central ill Posts: 174	49 merc crank in a 59a i have a 49 merc crank and bearings, will these work in a 59a? also, what about the clutch?

03-12-2025, 12:17 PM	#2
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,556	Re: 49 merc crank in a 59a The rear main has to match the block The rod bearings have to match the rods The flywheel has to match the block

03-12-2025, 12:52 PM	#3
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,723	Re: 49 merc crank in a 59a Sponsored Links (Register now to hide all advertisements) You'll use the main bearings for a 59A and whatever rod bearings match the rods you're using. If you have them, I'd go ahead and run the later 49-53 rods with the insert bearings. If you don't have these rods, I'd find a set and have them rebuilt. There is no great reason to run 59A full-floater bearings and rods unless you have already purchased/own them and the rods/bearings have been correctly setup. There are very few machine shops that know how to setup full-floater bearings these days.