LS1/LS2 Conversion with 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

themb2g · 12-14-2010, 10:15 PM

I am planning on converting my 72 blazer to either an LS1 or LS2 engine but I am finding no threads on doing this and keeping it 4x4. What do you do with the transfer case,etc. Can anyone guide me in the right direction with transmission and transfer case answers. thanks!

Burt4x4 · 12-15-2010, 10:56 AM

My buddy runs a LS2 in his 72. He is allways swapping Auto to Manual and back...depends on what he is using the truck for..Pismo he uses the Auto and rock crawling he uses the manual.
THey are kinda far from you but pacificfab.net in Morgan Hill CA has all the knowledge you need for the swap.
Or Google LS2 K5...?
.02c good luck

Wasted Income · 12-17-2010, 04:34 PM

Might be able to swap a ford or dodge D44 axle under the front so that the late model TC case drop lines up with the pig on the front axle?

edflores · 12-17-2010, 05:21 PM

You dont do anything if you dont want to. My boss link his LS1 to his already stout 350/np205 combo. Someone makes an engine Xmember that he used, and crossover steering.

Ronnie Mehling · 12-17-2010, 10:07 PM

I am building mine right now i used ls1 with 4l80 and the stock np205 i had to use a advanced adapter to join the tranny with the np205

themb2g · 12-18-2010, 03:07 AM

That is incredibly helpful. Thanks!

jstplyn331 · 03-31-2011, 05:04 PM

what Crossmember was used to put the LS-1 in? I have had a hard time trying to find a 4 wheel application for the LS-1 in a 4 wheel drive.

Any advice will be great

notorious · 03-31-2011, 10:53 PM

looks amazing

mcmlxix · 04-02-2011, 02:22 AM

Quote:

Originally Posted by Ronnie Mehling

I am building mine right now i used ls1 with 4l80 and the stock np205 i had to use a advanced adapter to join the tranny with the np205

Did you start with a 4x2 or 4x4 4L80e transmission?

67GMC3/4 · 05-04-2011, 04:13 AM

novak trans adapters has what you need to run a numerous selection of auto and manual transmissions. http://www.novak-adapt.com/ , I am also thinking of doing the swap with an ls1 out of a c5. i want a good all around truck, I have an SM420 4 speed in it that I could make work but dont know if it will hold up you familiar with that trans ?

jstplyn331 · 05-04-2011, 06:52 AM

From all I can see on Novaks web site is stuff for Jeep conversion. Have you actually found something for the LS1 into a chevy truck/Blazer the look to have mounts and crossmembers for the LS1 but the applications are for a jeep? Let me know if you could I appreciate it.
Posted via Mobile Device

ZZ4 · 05-08-2011, 07:22 PM

Check out advanceadapters.com
Posted via Mobile Device

72truckman · 05-08-2011, 09:20 PM

LS1 is the same as a 5.3, 6.0 etc they are all vortec engines and hook up the smae mechanically. check out my blazers thread in my signature should help u out

usmcchevy · 05-08-2011, 09:37 PM

More info in my sig.

fun in dirt · 05-09-2011, 09:38 AM

Are there any problems with mud/water splashing all over these motors and the wiring?
That is the only real concern I have about running one of these.

niceguy678us · 05-11-2011, 10:19 AM

No problems with water. All the wiring connectors are weather pack. Mount the ECU high and dry under the dash and build a breather box that aquires air from a high/dry point (like a snorkle) and you can submerge the whole thing if necessary LOL.

Check out my build thread.

12-14-2010, 10:15 PM	#1
themb2g Registered User Join Date: Jul 2010 Location: Portland, Oregon Posts: 411	LS1/LS2 Conversion with 4x4 I am planning on converting my 72 blazer to either an LS1 or LS2 engine but I am finding no threads on doing this and keeping it 4x4. What do you do with the transfer case,etc. Can anyone guide me in the right direction with transmission and transfer case answers. thanks!

12-15-2010, 10:56 AM	#2
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: LS1/LS2 Conversion with 4x4 My buddy runs a LS2 in his 72. He is allways swapping Auto to Manual and back...depends on what he is using the truck for..Pismo he uses the Auto and rock crawling he uses the manual. THey are kinda far from you but pacificfab.net in Morgan Hill CA has all the knowledge you need for the swap. Or Google LS2 K5...? .02c good luck __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

12-17-2010, 04:34 PM	#3
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: LS1/LS2 Conversion with 4x4 Might be able to swap a ford or dodge D44 axle under the front so that the late model TC case drop lines up with the pig on the front axle? __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

12-17-2010, 05:21 PM	#4
edflores Registered User Join Date: Jul 2005 Location: Riverside CA Posts: 860	Re: LS1/LS2 Conversion with 4x4 You dont do anything if you dont want to. My boss link his LS1 to his already stout 350/np205 combo. Someone makes an engine Xmember that he used, and crossover steering. Last edited by edflores; 12-18-2010 at 04:03 AM.

12-17-2010, 10:07 PM	#5
Ronnie Mehling Registered User Join Date: Dec 2010 Location: Fresno california Posts: 60	Re: LS1/LS2 Conversion with 4x4 I am building mine right now i used ls1 with 4l80 and the stock np205 i had to use a advanced adapter to join the tranny with the np205 Attached Images

12-18-2010, 03:07 AM	#6
themb2g Registered User Join Date: Jul 2010 Location: Portland, Oregon Posts: 411	Re: LS1/LS2 Conversion with 4x4 That is incredibly helpful. Thanks!

03-31-2011, 05:04 PM	#7
jstplyn331 Registered User Join Date: Jan 2009 Location: Fort Collins Colorado Posts: 92	Re: LS1/LS2 Conversion with 4x4 what Crossmember was used to put the LS-1 in? I have had a hard time trying to find a 4 wheel application for the LS-1 in a 4 wheel drive. Any advice will be great __________________ Build Thread,

03-31-2011, 10:53 PM	#8
notorious Registered User Join Date: Feb 2011 Location: desert hot springs Posts: 27	Re: LS1/LS2 Conversion with 4x4 looks amazing

05-04-2011, 04:13 AM	#10
67GMC3/4 Registered User Join Date: May 2011 Location: Laramie, Wy Posts: 22	Re: LS1/LS2 Conversion with 4x4 novak trans adapters has what you need to run a numerous selection of auto and manual transmissions. http://www.novak-adapt.com/ , I am also thinking of doing the swap with an ls1 out of a c5. i want a good all around truck, I have an SM420 4 speed in it that I could make work but dont know if it will hold up you familiar with that trans ?

05-04-2011, 06:52 AM	#11
jstplyn331 Registered User Join Date: Jan 2009 Location: Fort Collins Colorado Posts: 92	Re: LS1/LS2 Conversion with 4x4 From all I can see on Novaks web site is stuff for Jeep conversion. Have you actually found something for the LS1 into a chevy truck/Blazer the look to have mounts and crossmembers for the LS1 but the applications are for a jeep? Let me know if you could I appreciate it. Posted via Mobile Device __________________ Build Thread,

05-08-2011, 07:22 PM	#12
ZZ4 Registered User Join Date: Feb 2010 Location: Yuma,Az Posts: 15	Re: LS1/LS2 Conversion with 4x4 Check out advanceadapters.com Posted via Mobile Device

05-08-2011, 09:20 PM	#13
72truckman Registered User Join Date: Mar 2006 Location: San Ramon, California Posts: 276	Re: LS1/LS2 Conversion with 4x4 LS1 is the same as a 5.3, 6.0 etc they are all vortec engines and hook up the smae mechanically. check out my blazers thread in my signature should help u out __________________ My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4 Work in Progress http://67-72chevytrucks.com/vboard/s...d.php?t=291482 **SOLD!!!!!** 1965 GMC 4X4 http://67-72chevytrucks.com/vboard/s...d.php?t=294727

05-08-2011, 09:37 PM	#14
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: LS1/LS2 Conversion with 4x4 More info in my sig. __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

05-09-2011, 09:38 AM	#15
fun in dirt Registered User Join Date: Jan 2007 Location: Mississippi Posts: 2,118	Re: LS1/LS2 Conversion with 4x4 Are there any problems with mud/water splashing all over these motors and the wiring? That is the only real concern I have about running one of these. __________________ '72 C to K20 "Cannibalizer" http://67-72chevytrucks.com/vboard/s...32#post8653432 '85 K30 "Big Nassy" '06 3500 Duramax ...tow truck '06 Silverado SS...DD '06 C1500 WT...DD '07 Classic C1500 WT...DD Built & sold cause can't keep 'em all: '72 Blazer "The Bucket" http://67-72chevytrucks.com/vboard/s...d.php?t=433190 '55 Chevy straight axle gasser https://www.trifive.com/forums/showthread.php?t=173938 '69 Pro Street Chevelle http://www.chevelles.com/forums/showthread.php?t=332541 '86 M1031 CUCV http://67-72chevytrucks.com/vboard/s...d.php?t=553619

05-11-2011, 10:19 AM	#16
niceguy678us Registered User Join Date: Sep 2002 Location: Lake Charles Louisiana Posts: 147	Re: LS1/LS2 Conversion with 4x4 No problems with water. All the wiring connectors are weather pack. Mount the ECU high and dry under the dash and build a breather box that aquires air from a high/dry point (like a snorkle) and you can submerge the whole thing if necessary LOL. Check out my build thread. __________________ 1970 Datsun 240Z 1972 K5 Blazer Highlander 1972 Chevelle 1959 Apache 3100 SWB Fleetside 2006 VTX 1800f Build thread: http://67-72chevytrucks.com/vboard/s...ght=highlander



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