What springs for LQ4 swap? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Mar 30th, 19, 08:05 AM Thread Starter
Probationer
Mitch
 
Join Date: Oct 2016
Location: Michigan
Posts: 2
What springs for LQ4 swap?

My ‘68 apparently had a very heavy big block in it before I got it. I’m putting in a 6.0L LQ4. Right now there is nothing but the engine and the body on the subframe, but even with my 330 lb self standing on the frame, the springs don’t even start to compress, so obviously they are WAY too stiff. Any idea what springs I should be using? Looking through the NPRD catalog there are a boggling number of options.
Simplemitch is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Mar 30th, 19, 10:37 AM
Senior Tech
Dave
 
Join Date: Dec 2005
Location: Tampa, Florida
Posts: 4,592
Re: What springs for LQ4 swap?

Spring rates are a function of weight and desired ride quality. You weigh the car (four corner weights are best) to determine the pounds you are going to be applying to the springs (rated in inches of compression per pound). Then figure your ride height by subtracting from the free height of the spring (if you want it two inches lower than stock, compare the spring rate stock and subtract height for difference in your weight).

Big Dave
Larger Dave is offline  
post #3 of 7 (permalink) Old Mar 30th, 19, 10:46 AM
Senior Tech
Don
 
Join Date: Jun 2006
Location: Mountain Springs, Texas
Posts: 3,358
Re: What springs for LQ4 swap?

I would use Ridetech Streetgrip progressive rate springs.

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1956 Cameo project - C5 drivetrain
1957 Buick Caballero project
dhutton is online now  
 
post #4 of 7 (permalink) Old Mar 30th, 19, 10:52 AM
Gold Lifetime Member
Chris
 
ckaram's Avatar
 
Join Date: Nov 2000
Location: Indiana
Posts: 997
Garage
Re: What springs for LQ4 swap?

When I had my LS swap we went lo-fi and cut a coil out of each. May not be ideal but it worked.

Check my rides:

1968 Camaro Convertible LS1, T56
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2016 Challenger RT Scat Pack Shaker
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
ckaram is online now  
post #5 of 7 (permalink) Old Mar 30th, 19, 12:55 PM
Gold Lifetime Member
Beth
 
Join Date: Mar 2018
Location: Nashville TN
Posts: 483
Re: What springs for LQ4 swap?

Look through this :

https://www.camaros.net/forums/16-br...mbos-here.html

68 Camaro convertible, 6.0 LQ4 with LS3 heads, Vintage Air, 750 street demon carb, eddy perf rpm, GM hot cam, Hooker headers, 4L80e, 12 bolt, 3.55 gears
NashvilleCat is offline  
post #6 of 7 (permalink) Old Apr 25th, 19, 11:09 AM
MCB
MCB Parts
 
Join Date: Dec 2009
Location: Danville, Ca.
Posts: 922
Send a message via AIM to MCB
Re: What springs for LQ4 swap?

We would normally send a SBC coil for an LS. Depending on brand, typically this will be #450-500lb.

We sell a LOT of Ridetech Streetgrip coils as they are a dual rate coil. While cruising, you are on about a #350 rate and when the coil loads (Cornering) it comes up to about #700lb to keep the car nice and flat. This is truly the best ride you can get out of a first gen, especially when run with their single adjustable shocks!

Let me know if you need further info or prices on them.
MCB

Give us a call at 866-628-8746 We enjoy talking to our customers!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


TEXT ONLY: 925-989-9091 (Replied 8-4)

Email:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Hours: Mon-Fri 8-4 pacific

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MCB is offline  
post #7 of 7 (permalink) Old Apr 25th, 19, 05:34 PM
Moderator
____
 
DOUG G's Avatar
 
Join Date: Mar 1999
Location: Maryland, USA
Posts: 19,229
Garage
Send a message via MSN to DOUG G
Re: What springs for LQ4 swap?

Didn't measure before and after, but would guess less than Ĺ" difference using my Moog Z-28 replacement springs with 1 coil cut (before swap)
Attached Thumbnails
Click image for larger version

Name:	DSCN0736.jpg
Views:	17
Size:	659.9 KB
ID:	226715  

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
DOUG G is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Springs, A arms, BB vs SB coil springs ???? Just 1 More Brakes, Suspension & Steering 13 Jan 3rd, 19 10:32 PM
3" Lowering Springs BigHog Brakes, Suspension & Steering 5 Dec 6th, 18 04:49 PM
Front springs: anyone fitted stiffer springs on a BB street car? Miles B Brakes, Suspension & Steering 2 Nov 30th, 18 04:40 PM
Could the leaf springs under my 69 camaro be the wrong ones?? Sam 15 Brakes, Suspension & Steering 9 Mar 3rd, 18 02:06 PM
Don't wait - swap mono leaf for JCW three leaf springs 68DaveV Brakes, Suspension & Steering 203 Jul 7th, 16 07:13 AM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome