The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-27-2016, 10:31 AM   #1
Russ68gmc
Registered User
 
Join Date: Nov 2013
Location: Wentzville Mo
Posts: 5
Exclamation Best 4" lift for big block V6 GMC and pics?

I have a 68 GMC K20 and I'm looking for the best 4" lift kit for it. My engine weights 860lbs and I want leafs that will hold up to the weight. any suggestions on what kit to get I was looking at the rough country 4" heavy duty lift kit. also any pics of trucks with 4" lift that are k20?
Russ68gmc is offline   Reply With Quote
Old 10-27-2016, 10:44 AM   #2
fennderbender1
Registered User
 
Join Date: Sep 2016
Location: Tuttle, Ok.
Posts: 7
Re: Best 4" lift for big block V6 GMC and pics?

Hi, I have a 67 Chevy K-10. A few years ago, around 1996 I changed the 1/2 ton springs for 3/4 ton springs along with shocks. this gave me about 2" of lift. Now many years later I am rebuilding the truck again. It is a driver. The front springs have settled 1/2 inch over time. I carefully measured it out before pulling the engine. I intend to build 3" blocks to go between the rear axle and springs. 3 1/2 inch blocks for the front. Then I will figure out what length of shocks I need. The steering will be another issue to get set up as well. I think it will work. I will use new U-bolts too.
I will get you some detailed pictures as I get deeper into it.
Attached Images
  
fennderbender1 is offline   Reply With Quote
Old 10-27-2016, 09:17 PM   #3
57taskforce
All about them K’s
 
57taskforce's Avatar
 
Join Date: Jun 2014
Location: Farmington, New Mexico
Posts: 6,170
Re: Best 4" lift for big block V6 GMC and pics?

Quote:
Originally Posted by fennderbender1 View Post
Hi, I have a 67 Chevy K-10. A few years ago, around 1996 I changed the 1/2 ton springs for 3/4 ton springs along with shocks. this gave me about 2" of lift. Now many years later I am rebuilding the truck again. It is a driver. The front springs have settled 1/2 inch over time. I carefully measured it out before pulling the engine. I intend to build 3" blocks to go between the rear axle and springs. 3 1/2 inch blocks for the front. Then I will figure out what length of shocks I need. The steering will be another issue to get set up as well. I think it will work. I will use new U-bolts too.
I will get you some detailed pictures as I get deeper into it.
Just an fyi Blocks up front are a big no no. As for which kit, I'd stay away from the soft ride kits as they have softer springs. This is the delimma one faces when trying to keep a 3/4 ton when lifting. I'm gonna have my local spring shop build me a set of springs that will keep my K/20 3/4 ton. Sorry I can't speak for which over the counter kit will do what you need.

At the bottom of this article it explains Why front blocks are bad.
http://www.fourwheeler.com/how-to/12...-alternatives/
__________________
Tyler
'57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888
'72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879
‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206
'98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's
‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue
‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0

Last edited by 57taskforce; 10-27-2016 at 09:23 PM.
57taskforce is offline   Reply With Quote
Old 10-27-2016, 11:25 PM   #4
72 Copper C-10
Registered User
 
72 Copper C-10's Avatar
 
Join Date: Oct 2013
Location: Palisade Colorado
Posts: 173
Re: Best 4" lift for big block V6 GMC and pics?

I would give Off-road designs a call. I know they will have a solution for you. I will NEVER buy an off the self lift spring again. yes, you do spend a little more for the springs, but its absolutely worth it, if you don't want your truck to ride like a basketball... or a brick on steel wheels....
72 Copper C-10 is offline   Reply With Quote
Old 10-27-2016, 11:44 PM   #5
Russ68gmc
Registered User
 
Join Date: Nov 2013
Location: Wentzville Mo
Posts: 5
Re: Best 4" lift for big block V6 GMC and pics?

I'm not really that concerned with how it rides as much as the springs not sagging from the weighy of the engine. I live near St Louis and there is a place called stl spring I guess I will give them a call or some other places and just get custom Springs.
Russ68gmc is offline   Reply With Quote
Old 10-27-2016, 11:53 PM   #6
57taskforce
All about them K’s
 
57taskforce's Avatar
 
Join Date: Jun 2014
Location: Farmington, New Mexico
Posts: 6,170
Re: Best 4" lift for big block V6 GMC and pics?

Quote:
Originally Posted by Russ68gmc View Post
I'm not really that concerned with how it rides as much as the springs not sagging from the weighy of the engine. I live near St Louis and there is a place called stl spring I guess I will give them a call or some other places and just get custom Springs.
In my opinion your better off that way because they can build the springs to your application rather than the opposite.
__________________
Tyler
'57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888
'72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879
‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206
'98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's
‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue
‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0
57taskforce is offline   Reply With Quote
Reply

Bookmarks

Tags
1968 k20 4x4, gmc, k20

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:47 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com