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Author Topic: Small block Chevy into Eagle  (Read 84 times)

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Offline The Dark Side of Will

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Small block Chevy into Eagle
« on: December 23, 2017, 10:36:57 PM »
My dad bought an SX/4 into which some incompetent moron had swapped a 304. He found out after purchase that the list of problems with the swap was long.

He decided to swap in a small block Chevy. He had a '90's LT1 in the shed, so out it came.
He's using the Eagle TF 998 trans.
The adapter plate is laser cut from 1/2" steel plate and had some subsequent machining operations. It's used with the 0.090 thick AMC transmission shim. He drilled the AMC converter pattern into a Chevy flex plate. He made a concentricity collar to fit the outside of the Chevy flexplate pilot journal and accept the AMC converter pilot to properly locate the converter.

Here is engine weight on motor mounts with only the second revision of the engine mount plates.









The crossmember will not be modified.

The engine is centered between the frame rails. The crossmember mounts are offset to the right, so we have to offset the engine back to the left. That is accomplished via the spacers you see between the right mount plate and the block. The pan rails are 9/32" higher than the 258 pan rails and will have to be raised more via thicker mount plates in order to allow room for the third bolt into the block on each side. With these developmental parts, the engine mount interferes with the forward upper bolt into the block. I ignored this for the first two versions, but will have to incorporate it into the next one.

The diff mounts will be incorporated into future revisions of the engine mount brackets. They're just a little more complicated.
« Last Edit: December 23, 2017, 10:38:00 PM by The Dark Side of Will »

Offline amcfool1

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Re: Small block Chevy into Eagle
« Reply #1 on: December 24, 2017, 01:57:05 AM »
hey, you guys go! at latest, this being 2017, still, there cannot be more than 5, 6 maybe eight, Eagle V8 conversions out there. A gentleman from Finland actually being the most successful up to this point. A V8 into an Eagle, while keeping it an Eagle, is fiendishly difficult. The TV show Eagle with the Ford V8 doesn't count, since they took out the front diff, it's now a  2 wheel drive station wagon, cool, but not an Eagle. Hey, even getting the original 258 back into an Eagle is an adventure and a half! good luck, gz

Offline The Dark Side of Will

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Re: Small block Chevy into Eagle
« Reply #2 on: December 26, 2017, 11:55:49 PM »


What a pain in my @$$...

Modeling for the left side diff mount done. Will get the drawings ready and send to the laser cutter tomorrow.

 

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