A few questions for a 5.3l in a '91

[k10shortbox]

I got a 5.3 and 4l60e with all the accessories harness and computer for 700 bucks. It was out of an 02 avalanche with 74,000 miles on it. If i was going to spend that much i would have just gotten an ls1, but thats just me. Good luck with the swap.

[low91]

I've started looking for a shorter oil pan, will 98-2003 ls1 pan fit an 05' engine.
eBay Motors: F-Car Oil Pan 98-02 LS1 Fbody Engine Brand new (item 330267784101 end time Oct-02-08 18:03:33 PDT)


or should I go with this one?
eBay Motors: LH8 GM LS1 Conversion Oil Pan Kit fits all LS engines (item 260238436426 end time Oct-05-08 08:22:21 PDT)


I still can't figure out the fuel filter fittings, does anybody have a pic of theres? thanks

[RedHeartbeat]

Get the fbody oil pan setup.

Dorman has an online catalog, the part numbers are listed in the conversion topic for OBS trucks.

[low91]

Thanks

[RedHeartbeat]

http://www.dormanproducts.com/catalo...Disconnect.pdf

800-120 and 800-121 on page 333 are the fittings I normally use with fuel injection quality or braided hose.

[r6z4o6]

If you have the braided FACTORY fuel lines coming up to your TBI, you can go THIS route as well from dorman catalog. And maybe you can if you have the hard lines too, i dunno.

800-078 + 800-058 = 3/8 line
800-079 + 800-057 = 5/16 line

That's the only money i have invested into my fuel line.

[98LSSOMO]

Couple of things to be aware of with the L33, based on my experience with an LM4. Chances are, the engine accessories are the same since both engines were for AWD configurations. The bottom 2 bolts for the a/c compressor goes through the compressor bracket and bolts into the side of the pan. Switching to any other pan will render the a/c bracket and compressor useless as no other truck bracket will fit. Also, the PS pump and reservoir interferes with the steering box.

I found out the hard way and ended up getting a used set of LS1 Corvette accessories. I like the idea of the lighter weight aluminum block in the S-truck. However, do not pay extra for the AWD truck accessories as they will not be of any use.

HTH

[low91]

I picked up the engine and transmission today but didn't get much done, just tried to mount up the adaptor plates and ran into a little snag. The a/c bracket is in the way of the adaptor plate. I'm guessing you just trim the area of the bracket? or is there a bracket from a different model that everyone uses? I'm useing truck accessories by the way. Also how do you connect the shift cable(95-98 column) to the trans it looks like the brackets are different. One more thing is that the oil pan is not treaded for bolts from the a/c bracket so it looks like i'm free to use the ls1 pan, anybody got one laying around they would sell me? thanks

[LS1GMCTruck]

A/C snag number one. Thats why I went with the top mount Sanden 508 compressor set-up. Your existing shift cable length will work, you just need the transmission cable bracket from those years truck 4L60E. And the corresponding truck shift shaft lever, that the end of the cable connects to. And the park/nuetral switch assembly, that bolts to the side of the tranny right there, in the same spot. All this is important to adjust & install just right, or your lit up position letters on your column won't be visably aligned as it came from the factory. Make sure when you slide your driveshaft yoke into the rear of the transmission for the first time, that you run your hand over the machined smooth surface everywhere and feel for any burrs or nicks, etc. and sand them smooth. If you don't, they will nick your tailstock seal and drip oil.

[low91]

I got the a/c problem straight, just went by the pics in kruznlow69s thread.