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02-20-2013, 05:51 PM
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#1 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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1970 GMC 5.3/4l60e swap
After building up a pretty nice 350 and tearing up a few transmissions, I wanted to continue building my truck to make it a nice driver. I wanted fuel economy, overdrive, fuel injection, and good power. So I did some research and came to the conclusion a 5.3 vortec would be my best bet. I purchased a 2000 5.3 and 4l60e with all the accessories, harness, computer, and fuse block for $900.
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02-20-2013, 05:57 PM
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#2 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
Sold my small block I have room for the new motor. The truck originally had a 250 straight six and I had the 350 in the six location. I am truing to do this on a tight budget so I wanted to keep the drive shaft the same length. So after some calculating, I made my own adapter plates to fit in the six towers and use the same drive shaft. After some cleaning and plates made I got the motor and trans in. Everything fit fine, and I didnt have to buy adapter plates or modify the drive shaft!
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02-20-2013, 06:13 PM
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#3 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
The pcm is shipped off to Wait4meperformance to get tuned, my racing innovation stainless headers are bought but on back order, and I have a high pressure inline fuel pump on the way. Hopefully I can get it plumbed in this weekend when I am home (going to college and can come home a few times a month to work on it).
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02-20-2013, 06:15 PM
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#4 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I am modifying my harness myself, and I am going to move the battery to the drivers side because that is where the harness wants it and I can use the existing intake tube, plan on just adding a cone filter.
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02-20-2013, 06:26 PM
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#5 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I should't have to much more to buy, other than trying to hunt down a power brake setup at a reasonable price. Attached is a spreadsheet of my cost thus far. Well I guess I can't upload spreadsheets.
engine and trans 900 Motormount bolts 5 motormounts 15 starter 35 Power steering box 50 0bd2 connector 2 intake gaskets 36 exhaust manifold bolts 3 torque converter bolt 6 headers 207 fuel pump 95 pcm tune 88 1442 |
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03-17-2013, 11:46 AM
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#6 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I have got a lot of work done lately, I got the transmission cross member modified and got the engine wired and plumed. Brake booster in (thanks drew67) and power steering lines in. Headers in and I fired it up.
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03-17-2013, 11:28 PM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Red Bud, IL (Home) Newton, IL (Shop)
Posts: 301
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Re: 1970 GMC 5.3/4l60e swap
Looking nice! Where did you get those headers? that is a GREAT price!
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03-18-2013, 06:46 AM
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#8 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I got the headers from racing innovations. They are excellent quality but did not come with collectors so I have to find some 2 1/2 that are not reduced to tie in with my exhaust.
Posted via Mobile Device |
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04-14-2013, 10:15 PM
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#9 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
Got the exhaust tied in today and drove it about 125 miles with no problems. Great power and 18 mpg! I love it so far.
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04-14-2013, 10:28 PM
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#10 |
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Registered User
Join Date: Feb 2011
Location: Alaska
Posts: 461
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Re: 1970 GMC 5.3/4l60e swap
Truck looks awesome. Like the swap.
Posted via Mobile Device
__________________
LIFTED OR LOW THE ONLY WAY TO GO!!!! Check out my build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=517346 Projects 56 Chevy pickup Porterbuilt FR/RR dropmembers |
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04-15-2013, 09:52 AM
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#11 |
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67cheby
 
Join Date: Sep 2008
Location: siloam springs ar 72761
Posts: 17,890
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Re: 1970 GMC 5.3/4l60e swap
Sweet, cant wait to do the LS swap myself !
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04-15-2013, 02:33 PM
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#12 |
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Registered User
Join Date: Aug 2012
Location: Topeka Kansas
Posts: 2,655
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Re: 1970 GMC 5.3/4l60e swap
What did you use for a battery tray since you had to move the battery to the drivers side?
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04-15-2013, 02:37 PM
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#13 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I just modified my old one to the drivers side.
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04-22-2013, 10:41 AM
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#14 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
Need to clean up some wiring but it runs and drives great.
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04-22-2013, 05:19 PM
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#15 |
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Registered User
Join Date: Oct 2003
Location: Sunny, Florida, some might call it South Alabama
Posts: 834
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Re: 1970 GMC 5.3/4l60e swap
What air intake is that? Or did you just fab something up?
__________________
Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart. |
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04-23-2013, 09:09 AM
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#16 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
It is a cheap cold air intake for a silverado that is on ebay for like 60 bucks, but I picked it up on craigslist second hand.
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05-13-2013, 06:29 AM
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#17 |
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Registered User
Join Date: Jul 2011
Location: Sweden
Posts: 165
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Re: 1970 GMC 5.3/4l60e swap
Looking great, beautiful truck! Looking for some options to swap myself
Posted via Mobile Device
__________________
GMC C15 -68 project: http://67-72chevytrucks.com/vboard/s...d.php?t=526059 Front/back Porterbuilt dropmember, Accuair, LS1/4L60e Chevrolet C20 -72 C20 to K10/20 conversion, LS power. |
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05-13-2013, 10:31 AM
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#18 |
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Registered User
Join Date: Jan 2013
Location: Oak Harbor, WA
Posts: 63
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Re: 1970 GMC 5.3/4l60e swap
Great job.
I am planning on doing this swap myself. Going to be a while though, the budget is pretty much non-existent. Can you give more detail in the fuel system?
__________________
"Live, Love, Build cool s***" Jesse Chapman, 2013  My Truck.. http://67-72chevytrucks.com/vboard/s...d.php?t=567219 |
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05-14-2013, 09:25 AM
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#19 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I am using the stock tank with a inline fuel pump, used steel line and for connections used gates fuel injection hose with fuel injection clamps. I am using a return fuel system, which I just put a return port in my stock tank. Works great and is the cheapest way to go.
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05-17-2013, 09:06 AM
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#20 | |
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Registered User
Join Date: Jan 2013
Location: Oak Harbor, WA
Posts: 63
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Re: 1970 GMC 5.3/4l60e swap
Quote:
__________________
"Live, Love, Build cool s***" Jesse Chapman, 2013 My Truck.. http://67-72chevytrucks.com/vboard/s...d.php?t=567219 |
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05-17-2013, 09:44 AM
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#21 |
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Registered User
 Join Date: Jul 2012
Location: paragould,arkansas
Posts: 858
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Re: 1970 GMC 5.3/4l60e swap
looks great!!!
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05-19-2013, 01:27 PM
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#22 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
I used a walbro inline 255 pump,
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05-19-2013, 08:17 PM
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#23 |
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Registered User
Join Date: Aug 2011
Location: Atlanta, GA
Posts: 1,523
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Re: 1970 GMC 5.3/4l60e swap
Very nice...loving this!
Posted via Mobile Device
__________________
Best Regards, Leon M. Instagram: @TheDirtyDianah
Bagged | 6.0L LS | T-56 (6-Speed Manual) | Turbo Burnout/Rolling Video: Chevy C10 Stepside 6.0L LSx & 6-Speed Manual |
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05-20-2013, 06:12 PM
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#24 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
Stock intake cleaned up the look some.
Posted via Mobile Device |
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08-14-2013, 10:15 AM
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#25 |
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Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 1970 GMC 5.3/4l60e swap
Just a update on the truck, filled the tank up and drove it easy and got 21 mpg! Love the swap.
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