5.3l swap into 79 k10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rennat_2006 · 06-19-2011, 11:30 PM

Replacing the 350 that spun a rod in my little brothers truck with a 5.3l with 55k on it. Already have most of the parts gathered up to do the swap and have the computer sent out being tuned and emissions garbage removed right now. Took the wiring harness apart last weekend and got arid of all of the emissions related and other unnecessaries also.

We made some adapter plates similar to these

Set the motor into the frame with these bolted up to the stock SBC clamshell mounts then to the pads in the frame and we are way off.

He had a 4speed in the truck and removed it and installed a th350. He mounted the trans crossmember in the closest holes in the frame to the front end of the truck. Currently with the engine sitting in the frame rails and the trans sitting on the mount we are like 2 inches apart?!?!

Cant find very much information on the 4x4 swap, Lots out there for the 2wd's though.

Can anyone give use a hand with this? I can get pictures of how everything sits currently if needed.

Thanks alot

BR3W CITY · 06-20-2011, 10:10 AM

which part is off? Can you not get the mounts into the pedestal, or you can't get the pedestal into the holes on the frame?

You may want to remove the trans crossmemeber from the bolt holes, then set the engine into the correct spot. Then drill new holes for the trans cross member... it ends up being much easier to drill 4 holes in the flat frame, then try to redo everything up front.

usmcchevy · 06-20-2011, 11:17 AM

Problem with moving the trans X member in a 4x4 is you then have 2 drive shafts to lengthen or shorten.

I can't see your pic right now(might be me, I'm at work) but you may want to look at 85burb's build thread and see what mounts he used in his 4X4.

Edit: link http://67-72chevytrucks.com/vboard/s...d.php?t=393076

rennat_2006 · 06-20-2011, 11:51 AM

little brother pulled the 350 and 4 speed outta the truck when the 350 started knocking. He installed a th350 and matching tcase out of another truck and says he installed the trans crossmember in the front set of holes in the frame, Im assuming there is 2 sets of holes in the frame probably 1 for the 4 speed trucks and 1 for the auto trucks. We made some mounts like the ones pictured above and set the engine in between the frame rails and bolted the mounts all up. With it bolted up to the stock mounts in the frame there is like a 2" gap between the transmission, The way we sit now the motor needs to go back more or the trans needs to come forward but we havent been able to find anyone else having this problem so im worried we did something wrong.

I can get some pictures if you guys would like of how everything is sitting currently in the truck.

I see that 85burb used Dingo Slider mounts, We would like to avoid those because of the cost($150) if at all possible, but if those are the only mounts that work for a 4x4 thats the way we will have to go.

rennat_2006 · 06-20-2011, 08:34 PM

Anybody got any ideas if those mounts will even work(the ones I made like the picture in my 1st post) in a 4x4?

Any other members who have made the swap in a 4x4 that I may be able steal some info from?
Posted via Mobile Device

CamaroChris · 06-22-2011, 12:34 AM

I'm using the mount brackets from http://dirtydingo.com/store/ They seem to work. but I have not completely bolted the motor in yet.

Gordonr1973 · 06-23-2011, 12:52 AM

Quote:

Originally Posted by CamaroChris

I'm using the mount brackets from http://dirtydingo.com/store/ They seem to work. but I have not completely bolted the motor in yet.

x2. They worked great for me.

06-19-2011, 11:30 PM	#1
rennat_2006 Registered User Join Date: Jun 2009 Location: Pasco, wa Posts: 111	5.3l swap into 79 k10 Replacing the 350 that spun a rod in my little brothers truck with a 5.3l with 55k on it. Already have most of the parts gathered up to do the swap and have the computer sent out being tuned and emissions garbage removed right now. Took the wiring harness apart last weekend and got arid of all of the emissions related and other unnecessaries also. We made some adapter plates similar to these Set the motor into the frame with these bolted up to the stock SBC clamshell mounts then to the pads in the frame and we are way off. He had a 4speed in the truck and removed it and installed a th350. He mounted the trans crossmember in the closest holes in the frame to the front end of the truck. Currently with the engine sitting in the frame rails and the trans sitting on the mount we are like 2 inches apart?!?! Cant find very much information on the 4x4 swap, Lots out there for the 2wd's though. Can anyone give use a hand with this? I can get pictures of how everything sits currently if needed. Thanks alot __________________ 1972 C10 cheyenne super -350/th350 Wifes truck 1971 Nova- 6.0l with some goodies and a t56, 98-02 camaro brakes all around, tubular control arms, etc 2000 zr2 blazer- rock crawler offroad toy, one ton axles and lockers front and rear. 2006 2500hd- 500hp duramax/built allison trans,traction bars, and some other goodies.

06-20-2011, 10:10 AM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 5.3l swap into 79 k10 which part is off? Can you not get the mounts into the pedestal, or you can't get the pedestal into the holes on the frame? You may want to remove the trans crossmemeber from the bolt holes, then set the engine into the correct spot. Then drill new holes for the trans cross member... it ends up being much easier to drill 4 holes in the flat frame, then try to redo everything up front. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

06-20-2011, 11:17 AM	#3
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: 5.3l swap into 79 k10 Problem with moving the trans X member in a 4x4 is you then have 2 drive shafts to lengthen or shorten. I can't see your pic right now(might be me, I'm at work) but you may want to look at 85burb's build thread and see what mounts he used in his 4X4. Edit: link http://67-72chevytrucks.com/vboard/s...d.php?t=393076 __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index Last edited by usmcchevy; 06-20-2011 at 11:18 AM.

06-20-2011, 11:51 AM	#4
rennat_2006 Registered User Join Date: Jun 2009 Location: Pasco, wa Posts: 111	Re: 5.3l swap into 79 k10 little brother pulled the 350 and 4 speed outta the truck when the 350 started knocking. He installed a th350 and matching tcase out of another truck and says he installed the trans crossmember in the front set of holes in the frame, Im assuming there is 2 sets of holes in the frame probably 1 for the 4 speed trucks and 1 for the auto trucks. We made some mounts like the ones pictured above and set the engine in between the frame rails and bolted the mounts all up. With it bolted up to the stock mounts in the frame there is like a 2" gap between the transmission, The way we sit now the motor needs to go back more or the trans needs to come forward but we havent been able to find anyone else having this problem so im worried we did something wrong. I can get some pictures if you guys would like of how everything is sitting currently in the truck. I see that 85burb used Dingo Slider mounts, We would like to avoid those because of the cost($150) if at all possible, but if those are the only mounts that work for a 4x4 thats the way we will have to go. __________________ 1972 C10 cheyenne super -350/th350 Wifes truck 1971 Nova- 6.0l with some goodies and a t56, 98-02 camaro brakes all around, tubular control arms, etc 2000 zr2 blazer- rock crawler offroad toy, one ton axles and lockers front and rear. 2006 2500hd- 500hp duramax/built allison trans,traction bars, and some other goodies.

06-20-2011, 08:34 PM	#5
rennat_2006 Registered User Join Date: Jun 2009 Location: Pasco, wa Posts: 111	Re: 5.3l swap into 79 k10 Anybody got any ideas if those mounts will even work(the ones I made like the picture in my 1st post) in a 4x4? Any other members who have made the swap in a 4x4 that I may be able steal some info from? Posted via Mobile Device __________________ 1972 C10 cheyenne super -350/th350 Wifes truck 1971 Nova- 6.0l with some goodies and a t56, 98-02 camaro brakes all around, tubular control arms, etc 2000 zr2 blazer- rock crawler offroad toy, one ton axles and lockers front and rear. 2006 2500hd- 500hp duramax/built allison trans,traction bars, and some other goodies.

06-22-2011, 12:34 AM	#6
CamaroChris Registered User Join Date: Mar 2011 Location: Midvale, Utah Posts: 220	Re: 5.3l swap into 79 k10 I'm using the mount brackets from http://dirtydingo.com/store/ They seem to work. but I have not completely bolted the motor in yet. __________________ I LIKE TRUCKS 1986 GMC Suburban Build Build link 1982 Chevy SWB 2wd Scottsdale, Build Link Sold 1987 Jimmy Build, Project Cheap A$$ Build Link



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