1955 C3 Motor mounts

[ehadams]

Getting started on puting a 85 318 V8 into my 55 C3.

I know I am going to searching and asking a bunch of questions shortly.

 

First question:

 

Does anyone know if there are motor mounts available to put a 318 into a 55 C3-B6-108?

Or have pictures of your motor mounts?

 

thanks

 

Eric

[59bisquik]

I used factory hemi motor mounts and then welded on the frame brackets to match. The early poly and hemis had a front mount stock, but I could never find one. In the rear I used the factory V8 bell housing that mounts the rear of the engine on the cross member. If it was a stock L6 truck, the crossmember unbolts and moved forward about 6 inches to the next set of holes. The transmission just hangs off the bell housing with no additional mounts just like the factory L6 setup.

Edited February 25, 2019 by 59bisquik

[Radarsonwheels]

There are two styles of smallblock mount from the muscle car years up to the magnum 5.2/5.9. There is the early biscuit style that looks like a rubber pack of cards with a stud sticking out of the top and bottom flats, and the spool style that has a metal sleeve suspended in rubber. They both work but the biscuit style is probably going to be better represented in the aftermarket due to the golden years of muscle cars being popular. 

 

With a lot of power the biscuit mounts tend to seperate/rip in half. Especially new manufacture parts- the rubber from india just ain’t what 1970s USA rubber was. You can get solid metal ones that will loosen your fillings, thru-bolted ‘mag mounts’ from mancini, or make your own limiters. If it’s a stock 318 you shouldn’t have any problems!

 

The spool mounts are really nice but slightly harder to fabricate from scratch. I used modified spool mounts from a late 80s v6 to accept the late 70s big block spool mounts on my ‘54 project. The bolts go front to back and the trick part is that the frame side brackets are open on top so the bolts just drop right in, then there is a lip on the top which captures the washers when you tighten it up. Stock spools are weak too and people often pour polyurethane in them to fill the voids or just replace the rubber with poly inserts.

 

Edited February 28, 2019 by Radarsonwheels

[ehadams]

5 hours ago, Radarsonwheels said:

Thanks Radar,

Mine came with the biscuit style.  The replacements are definately cheap.  Hard to find one on RockAuto for more than $5.

I am sticking with the 318 stock.  It came out of a fully running Van.

Pretty sure I am going to be able to transplant the whole drive train

Your build is definately an inspiration.