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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => LT/LS Swaps => Topic started by: 1bad72 on November 28, 2013, 12:04:19 AM

Title: 1986 c10 ls swap(lq4/4l80e)
Post by: 1bad72 on November 28, 2013, 12:04:19 AM

Hello, I'm in the begining stages of a ls swap on my newly acquired swb. Looks like a few people have done this or are in the process of. I'm trying to keep it simple, 6.0,.706 casting aluminum heads, od trans, and fuel injection. O ya and a cam of course. How do these trucks run? Any sujestions on engine mounts/ plates? Headsets or cast manifolds? Thanks for the input ;D

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: Captkaos on December 02, 2013, 10:38:14 AM

Mounts:  Dirty Dingo, Transdapt, Street and performance all of them will work.
Headers,
I know they 3/4 ones from Headman Hustler work.
These are Headman offerings: http://www.brphotrods.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=BRP&Category_Code=CNV10 (http://www.brphotrods.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=BRP&Category_Code=CNV10)
http://www.hedmanhusler.com/1973-87-Half-Ton-TRUCKS-2WD-LS-Swap-Headers (http://www.hedmanhusler.com/1973-87-Half-Ton-TRUCKS-2WD-LS-Swap-Headers)
Patriot just came out with some part number H8087
LS1/LS6 “Clipster” style header for the popular 1973-87 Chevrolet C-10 pickups. Header part number H8087 uses longer 1 3/4” primary tubes,
I am using Street and Performace on my Twin Turbo truck.

Hooker has manifolds,

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: mcintyrederek on December 05, 2013, 05:44:19 PM

I've got an '86 C10, what kind of rear axle ratio do you have?

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: Captkaos on December 05, 2013, 06:00:19 PM

Mine currently has 2.76 gears, have a 3.42 to go in it.

Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: 1bad72 on December 05, 2013, 09:28:52 PM

Not sure of my gears I plan on doing a 12 bolt with 3.54. I plan on doing at least a 4"/6" drop so ground clearance is a must. Anyone used the plates with the stock small block clam mounts?

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: Captkaos on December 05, 2013, 09:51:29 PM

I am using S&P plates with SBC shells and I have another set that I plan to use.

Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: mcintyrederek on December 05, 2013, 10:10:46 PM

I'm running the TH400 with 2.73 gears.  Lopey takeoff but excellent on the highway.  I really wanted to put a 700R4 in there because I had a 3.73 to go in it, but then I'd be right back where I started, just with better takeoff which didn't matter for me..

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: 1bad72 on December 05, 2013, 11:58:20 PM

Where do you get the S&P plates from?

Title: Re: 1986 c10 ls swap(lq4/4l80e)
Post by: Captkaos on December 06, 2013, 11:46:45 AM

http://hotrodlane.cc/ is Street & Performance.

I would just pick up some Transdapt plates: http://www.summitracing.com/parts/trd-4572