Motor Mount Adapter Summary

MalibuRacing

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May 5, 2003
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Motor Mount Adapter:
I used Trans-Dapt 4592 LS adapter plates:


It includes all the necessary bolts and hardware. It also included the late model style motor mounts, which I didn't use. I believe the proper part number for the adapter plates only (about $20 cheaper) is 4572 if you plan to use the stock Malibu frame mounts and SBC clamshells as I did.

after_clean.jpg

I used the stock style '79 Malibu frame mounts as seen above

P1100534.JPG

The stock SBC "clam shells" that bolts to the adapter plate as seen above

I used the transmission crossmember location as the reference point for engine location. I then tack welded the frame mounts in place and bolted them into place. Drilling bolt holes may be required.
 

MalibuRacing

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You can use the stock location, but I moved mine back about 1/2" from what I remember.
 

malibu_newfie

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Sep 30, 2015
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Newfoundland , Canada
Question. When you moved your motor mounts back was that for more clearnence for belt and pulleys. Also did you have to move your transmission back as well.
 

MalibuRacing

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From what I remember, I located the engine (and motor mount locations) by referencing the transmission mount location. In other words, I installed the motor/transmission together. I then installed the transmission crossmember (Iceman crossmember). This was how I determined the location of the engines mounts, based on where the transmission mount located the engine position.
 

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