Conversions & Swaps LSX Engines in Non-LSX Vehicles
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My 91 C1500 LS1 Swap thread.

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Old 12-13-2013, 03:29 PM
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I just went to autozone and found out that the 99 power steering is the same as my 91 c1500 power steering as well as the pulley..
Old 12-14-2013, 06:50 PM
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Well i did have to get another power steering pump at autozone for a 2000 silverado and the lines fit perfect with stock lines

My 91 C1500 LS1 Swap thread.-forumrunner_20131214_175030.png
Old 12-14-2013, 10:07 PM
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Originally Posted by 91ls1silverado
How do i run my fuel lines? I'm a lil confused on that part any info or pics would help thanks.
Just replace the rubber sections in the old fuel lines with fuel injection hose and double clamp each end with fuel injection hose clamps. You can buy the fittings that snap on to the rail and just clamp them into the hose. If you have a return less rail then you'll have to use the corvette filter/regulator.
Old 12-25-2013, 03:13 PM
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Its been a while that I've worked on my truck...been busy working and dealing with Christmas stuff.
I got a little bit of time today to work on it so i decided to install the pilot bearing and flywheel. That's all i could do today before i have to go to work!

My 91 C1500 LS1 Swap thread.-forumrunner_20131225_141335.jpg



My 91 C1500 LS1 Swap thread.-forumrunner_20131225_141347.jpg
Old 12-29-2013, 08:53 AM
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Yesterday I finally put the clutch and pressure plate on! Today i should mount the tranny on. Hopefully it all goes good.

My 91 C1500 LS1 Swap thread.-forumrunner_20131229_075220.jpg

But i tried putting the release bearing on the fork but it would rub...#1377c does anyone know why? Thanks
Old 12-30-2013, 03:16 PM
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Well i tried mounting up the tranny last night and it didn't go well...so I'm gonna take out my engine out of the truck and try to mount the tranny and drop in the tranny and engjne together...
Old 12-30-2013, 07:56 PM
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Mounted up the tranny!!

My 91 C1500 LS1 Swap thread.-forumrunner_20131230_185527.png

But i borrowed a buddies cherry picker and its too short compared to my other friends so i need to get the other cherry picker so it can fit..
Old 01-01-2014, 01:14 PM
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Well Yesterday I got my friends cherry picker and the LS1 with tranny are in the truck already. I prefer to install the engine with tranny if there is no lift. Was pretty easy. And what i did to make sure the ls was a perfect fit with the tranny in the engine bay was i measured the end of the 350 motor mount to the end of the block and it measured 1ft 2in. on each side. So I got the Dirty dingo mounts and slid em to where it measures the same on the 350 and i mounted up the tranny to it put it in the bay and it fit perfect with the chassis mounts and the tranny crossmember. I'm happy with the dirty dingo mounts. Now im
Old 01-01-2014, 01:15 PM
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Now I'm going to cut up the original wiring harness and do all the lil things to make it start up!
Old 01-02-2014, 07:10 AM
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Originally Posted by 91ls1silverado
Well Yesterday I got my friends cherry picker and the LS1 with tranny are in the truck already. I prefer to install the engine with tranny if there is no lift. Was pretty easy. And what i did to make sure the ls was a perfect fit with the tranny in the engine bay was i measured the end of the 350 motor mount to the end of the block and it measured 1ft 2in. on each side. So I got the Dirty dingo mounts and slid em to where it measures the same on the 350 and i mounted up the tranny to it put it in the bay and it fit perfect with the chassis mounts and the tranny crossmember. I'm happy with the dirty dingo mounts. Now im
I did the the same thing with my dirty dingo mounts.
Old 01-02-2014, 12:28 PM
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Got my Fuel lines, adapters and fittings. Time to make my custom fuel lines!

My 91 C1500 LS1 Swap thread.-forumrunner_20140102_112834.jpg
Old 01-20-2014, 10:42 PM
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Well I'm getting down to the wiring. Going to have to do alot of research, just clipped some of the wires i know I didn't need.

My 91 C1500 LS1 Swap thread.-forumrunner_20140120_214237.png

Still messy but its getting there slowly.
Old 01-20-2014, 11:43 PM
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Looking good man. Just finished buttoning up my 370 now it's time to put it in. That wiring can be a pain in the *** I'm glad I'm going carbed. What radiator are you running?
Old 01-21-2014, 12:12 AM
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Originally Posted by baronsmith98
Looking good man. Just finished buttoning up my 370 now it's time to put it in. That wiring can be a pain in the *** I'm glad I'm going carbed. What radiator are you running?
Thanks man, and nice what mounts did you get? And I'm actually running my stock radiator. Got the 99 truck upper and lower hose and it looks good. Made my own hoses for the heater core. since one of the heater hoses goes to the radiator from the firewall i got a "T" from auto zone and cut the hose and made it go from firewall to water pump and radiator.
Old 01-21-2014, 03:29 PM
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I got dirty dingos
Old 01-21-2014, 09:24 PM
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Fuel Lines are almost done just need to make one fit but it looks good to me!!

My 91 C1500 LS1 Swap thread.-forumrunner_20140121_202242.png



My 91 C1500 LS1 Swap thread.-forumrunner_20140121_202254.png



My 91 C1500 LS1 Swap thread.-forumrunner_20140121_202307.png



My 91 C1500 LS1 Swap thread.-forumrunner_20140121_202319.png

Stock fuel lines going to 2 custom fuel lines going to the corvette filter and a fuel line from the filter to the fuel rail.
Old 01-25-2014, 03:16 AM
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Found out out i need a 3/8 to -6an fuel adapter so i just ordered that and fixed my clutch problem that i had and connected the o2 sensors...tomorrow i shall put on the fuel pump and work with the wiring harness a lil bit more. Oh and remember to make sure that the slave cylinder rod is on the fork, not under it or your gonna have problems like me...lol


My 91 C1500 LS1 Swap thread.-forumrunner_20140125_021419.png



My 91 C1500 LS1 Swap thread.-forumrunner_20140125_021433.png



My 91 C1500 LS1 Swap thread.-forumrunner_20140125_021446.png
Old 01-26-2014, 09:05 PM
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Replaced my fuel pump with a high performance fuel pump.... all i had to do was spice up 2 wires. Easy job.

My 91 C1500 LS1 Swap thread.-forumrunner_20140126_200320.jpg



My 91 C1500 LS1 Swap thread.-forumrunner_20140126_200334.jpg



My 91 C1500 LS1 Swap thread.-forumrunner_20140126_200347.png

Put on my driveshaft as well and now all i need to do is mate up the new harness with the old harness.
Cleaned up the intake and covers, had to cut so they could fit with alternator bracket and throttle cable bracket

My 91 C1500 LS1 Swap thread.-forumrunner_20140126_200503.png
Old 01-27-2014, 07:07 PM
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What fuel pump did you go with? Looking at putting in an aeromotive stealth for mine
Old 01-27-2014, 08:52 PM
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Originally Posted by baronsmith98
What fuel pump did you go with? Looking at putting in an aeromotive stealth for mine
http://www.highflowfuel.com/i-478352...1988-1995.html
Heard its quiet should work good went in like it was stock, i liked how it fit.


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