Need ideas on ls swap. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lower · 02-29-2012, 04:33 PM

I have a 70 lwb c-10 that im going to put a 5.3 4l80 into,
Would it be better to just swap my cab and body over to the newer frame or would it be better to use the 70 frame and just get all the mounts needed to swap it over? The donor truck is a 2000 long bed reg cab. Its a 3/4 ton which is why im thinking it would be better to just pull the motor and swap it. What do you guys think?????

Gordonr1973 · 02-29-2012, 04:45 PM

Definitely get the mounts and move the motor & trans to the 70 frame.

Lots of mount kits to chose from, I used DirtyDingo.com for my swap.

mooseknuckles · 02-29-2012, 05:08 PM

swap the motor and tranny into the 70.

**Clyde65** · 02-29-2012, 06:00 PM

X3 on pull the motor and trans and put in 70

usmcchevy · 02-29-2012, 10:40 PM

Swapping the body would be a ton more work. Are you sure its a 5.3? The only application to get the 5.3/80e were the vans, and they didn't get the newer motors untill 03. I think you may have a 6.0 there.
Posted via Mobile Device

BR3W CITY · 02-29-2012, 11:03 PM

or its a 4l60e...

Lower · 03-01-2012, 12:39 AM

It is a 5.3, could possibly be a 60 havent pulled anything apart to find out. the truck itself will be parted/scrapped. I was looking at the motor mount towers on the new one and it looks like i could possibly surgically remove them and might make them work in the old frame? I am defineately using the 70 frame after looking at this one. Looks like its time to study up, I have a hell of a learning curve to get after on this newer stuff.

Crash_OK · 03-01-2012, 07:51 AM

Quote:

Originally Posted by Lower

It is a 5.3, could possibly be a 60 havent pulled anything apart to find out. the truck itself will be parted/scrapped. I was looking at the motor mount towers on the new one and it looks like i could possibly surgically remove them and might make them work in the old frame? I am defineately using the 70 frame after looking at this one. Looks like its time to study up, I have a hell of a learning curve to get after on this newer stuff.

This site along with LT1SWAP.com and LS1Tech.com has a ton of info on how to do the swap. I am sure you have found the LS Swap FAQ on this board it is a great place to start http://67-72chevytrucks.com/vboard/s...d.php?t=456787

Good luck with your swap..

Lower · 03-01-2012, 12:19 PM

Got the truck home last night, was looking over it this morning and I think my best bet is to use the entire engine harness and just remove the sensors that I wont be using. I will be using the engine and trans, might narrow the rear end at a later date. I have the whole donor truck at my disposal. Has anyone ever used the hydra-boost setup off of one of these trucks? What about connecting it to my original steering box? I'm wanting to use everything possible from the donor truck to bring the 70 into the new ages. I think i can fab up a way to use the instrument cluster as well, I appreciate any and all criticism on what im trying to do.
Thanks
Jon

BR3W CITY · 03-01-2012, 01:33 PM

I have a hydroboost pump in mine, but haven't hooked into the brake circuit yet. You can cut the fitting off of the line, and flare the old style fitting on to use with your pump.

**Clyde65** · 03-01-2012, 03:34 PM

Get with Captnfab, he makes a mount for the Hydro brake that fits to the earlier trucks

02-29-2012, 04:33 PM	#1
Lower Registered User Join Date: Feb 2012 Location: Depew, OK Posts: 204	Need ideas on ls swap. I have a 70 lwb c-10 that im going to put a 5.3 4l80 into, Would it be better to just swap my cab and body over to the newer frame or would it be better to use the 70 frame and just get all the mounts needed to swap it over? The donor truck is a 2000 long bed reg cab. Its a 3/4 ton which is why im thinking it would be better to just pull the motor and swap it. What do you guys think????? __________________ ~Jon Ol Green 1970 K10ish LWB,454/400/205, been in family since new. My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=516056

02-29-2012, 04:45 PM	#2
Gordonr1973 Home Built '87 Join Date: May 2010 Location: Calgary, Alberta Canada Posts: 1,829	Re: Need ideas on ls swap. Definitely get the mounts and move the motor & trans to the 70 frame. Lots of mount kits to chose from, I used DirtyDingo.com for my swap. __________________ Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969

02-29-2012, 05:08 PM	#3
mooseknuckles Registered User Join Date: Sep 2009 Location: ottawa,canada Posts: 4,550	Re: Need ideas on ls swap. swap the motor and tranny into the 70. __________________ my build threads '86 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415628 '67 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=635078 '63 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=674682

02-29-2012, 06:00 PM	#4
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Need ideas on ls swap. X3 on pull the motor and trans and put in 70 __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

02-29-2012, 10:40 PM	#5
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: Need ideas on ls swap. Swapping the body would be a ton more work. Are you sure its a 5.3? The only application to get the 5.3/80e were the vans, and they didn't get the newer motors untill 03. I think you may have a 6.0 there. Posted via Mobile Device __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

02-29-2012, 11:03 PM	#6
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Need ideas on ls swap. or its a 4l60e... __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-01-2012, 12:39 AM	#7
Lower Registered User Join Date: Feb 2012 Location: Depew, OK Posts: 204	Re: Need ideas on ls swap. It is a 5.3, could possibly be a 60 havent pulled anything apart to find out. the truck itself will be parted/scrapped. I was looking at the motor mount towers on the new one and it looks like i could possibly surgically remove them and might make them work in the old frame? I am defineately using the 70 frame after looking at this one. Looks like its time to study up, I have a hell of a learning curve to get after on this newer stuff. __________________ ~Jon Ol Green 1970 K10ish LWB,454/400/205, been in family since new. My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=516056

03-01-2012, 12:19 PM	#9
Lower Registered User Join Date: Feb 2012 Location: Depew, OK Posts: 204	Re: Need ideas on ls swap. Got the truck home last night, was looking over it this morning and I think my best bet is to use the entire engine harness and just remove the sensors that I wont be using. I will be using the engine and trans, might narrow the rear end at a later date. I have the whole donor truck at my disposal. Has anyone ever used the hydra-boost setup off of one of these trucks? What about connecting it to my original steering box? I'm wanting to use everything possible from the donor truck to bring the 70 into the new ages. I think i can fab up a way to use the instrument cluster as well, I appreciate any and all criticism on what im trying to do. Thanks Jon __________________ ~Jon Ol Green 1970 K10ish LWB,454/400/205, been in family since new. My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=516056

03-01-2012, 01:33 PM	#10
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Need ideas on ls swap. I have a hydroboost pump in mine, but haven't hooked into the brake circuit yet. You can cut the fitting off of the line, and flare the old style fitting on to use with your pump. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-01-2012, 03:34 PM	#11
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Need ideas on ls swap. Get with Captnfab, he makes a mount for the Hydro brake that fits to the earlier trucks __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

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