5.3 into and 86 4x4 C10

[Kansas T]

I just finished up this swap with help from my brother in law. We used a 5.3 from an 01 suburban and mated it to the existing 700r4. We put fuel pumps in both tanks and upgraded the switching valve so the dual tanks still work properly. We also used the 5.3 compressor and got the ac working. The cruise servo is from an 87 Buick Grand National. Sorry the engine is dirty, but I took the pics before scrubbing everything down. The truck has 4.56 gears, locker in the rear, limited slip in the front, and 35 inch tires.

[stevebbc]

Is that the original fan shroud and radiator? I'm putting a 6.0 in an 86 K5 Blazer.

[Kansas T]

Is that the original fan shroud and radiator? I'm putting a 6.0 in an 86 K5 Blazer.

Yes

[stevebbc]

Did the Sanden compressor clear the frame or did you use an aftermarket bracket? What motor mounts?
Thanks,
Steve

[Kansas T]

Nothing cleared like I wanted because its a 4x4. I extended the passenger side motor mount perch to the back of the truck and relocated the mount back far enough, so the stock compressor bracket would clear. I also had to remove the stock cross member and fab one that set lower under the front of the engine to give the compressor enough clearance on the bottom side. The oil pan was also touching the stock cross member at the drivers side front corner. I used generic mounts that set the engine 1 inch forward from stock. Putting it in the stock location would have required a lot more work to clear the ac compressor.

[89sierra]

hey i got a question. i am looking at doing similar swap in an 89 and want to use my 700r4 and original transfercase. what did you have to do to mate that motor up to the 700r4.

[Kansas T]

I used the GM flywheel and spacer for the 4L80.

[bstill]

I just noticed your tag!

[Beatdown Z]

Nice swap! I like how you retained the AC and Cruise Control.

And yea, sweet tag!

[stevebbc]

My oil pan hit the stock front xmember too. I cut a square hole in it about 1.5"x1.5" for the front ds corner of the oil pan to drop into. And ground a little off the pan too. Used the Novak high ps ac mount.

I also used the 4l80e spacer from gm parts direct for the 700r4.

I think after seeing yours, I'm going to get the CC parts back out and see if I can set it up like yours.