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Thread: M1008 CUCV Hot Rod Project L92 engine 6L80e transmission Swap

  1. #11
    Sergeant Major evldoer's Avatar
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    The motor mount conversion brackets are from Streetrays on fleabay. These have 3 or 4 places to mount the factory Clam shell mounts in order to move the engine forward or to the back. In pic, the 4 Allen head countersunk bolts are what hold adapter to the block. Then the clam shell bolts over the top with 3 bolts. Cheap and simple.

    Tomorrow the fun will start. I have a couple other customer vehicles to work on but I'm going to push those back and get the engine set in this truck. Tomorrow we will have a lot more pics for you.
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    Mike W.

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    Quote Originally Posted by evldoer View Post
    The motor mount conversion brackets are from Streetrays on fleabay. These have 3 or 4 places to mount the factory Clam shell mounts in order to move the engine forward or to the back. In pic, the 4 Allen head countersunk bolts are what hold adapter to the block. Then the clam shell bolts over the top with 3 bolts. Cheap and simple.
    Those brackets have an aluminum look to them, but they have to be milled steel plate, right?
    M35A2 w/Winch SOLD

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    They are aluminum, and plenty strong enough. I have the same thing in my car, which is making more horsepower than this, so I am not concerned about failure.
    Mike W.

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    This is what we are starting with. The a/c compressor will be removed, motor mounts pulled off, intake removed for engine installation, and a few other things.
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    Mike W.

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    Sergeant Major evldoer's Avatar
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    This set of pics shows how the motor mounts and adapters are fitted. I started out with the clamshells bolted to the far rear position. After the test fit they were moved 1 3/4" farther forward for the best all around fit. This centered the transmission mount almost dead center on the trans crossmember.
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    Mike W.

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    I bolted up the transfer case to the trans to show how they go together. No drilling, no taping, no grinding, etc. This is as simple as it gets. Another reason why I prefer working on GM products
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    Mike W.

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  12. #17
    Sergeant Major evldoer's Avatar
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    Engine and trans go in together. After setting it where we thought it should be, clearance was checked at all the critical points. The crossmember had to be notched for the Oil pan, left frame rail to clear the exhaust manifold, and the firewall just under the screws that hold the Throttle pedal bracket to clear back of cylinder head. The 3 spots can be seen marked with a yellow paint pen. Crossmember was cut and welded to retain its strength. The cab pinch weld on the firewall was welded back up after being cut, and then a spritz of paint to seal it all up.
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    Mike W.

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    Engine is in and fits good now. Had to switch exhaust manifold on passenger side because the original truck manifold would not work. I put on a manifold from a 2000 camaro and there is plenty of room.
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    Mike W.

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    Quote Originally Posted by evldoer View Post
    Engine and trans go in together. After setting it where we thought it should be, clearance was checked at all the critical points. The crossmember had to be notched for the Oil pan, left frame rail to clear the exhaust manifold, and the firewall just under the screws that hold the Throttle pedal bracket to clear back of cylinder head. The 3 spots can be seen marked with a yellow paint pen.
    How could you even get your head in there to SEE where anything was getting hung up?!
    M35A2 w/Winch SOLD

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    Sergeant Major evldoer's Avatar
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    Quote Originally Posted by Another Ahab View Post
    How could you even get your head in there to SEE where anything was getting hung up?!
    Surprisingly enough, there is plenty Of room, with the exception of the drivers side exhaust manifold. There is about an 1/8 inch of clearance. Here are some pics of both manifolds and how it fits.
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    Mike W.

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