C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Lowering Ideas

Thread Tools
 
Search this Thread
 
Old Aug 4, 2005 | 09:01 PM
  #1  
66CorvetteCoupe's Avatar
66CorvetteCoupe
Thread Starter
Pro
10 Year Member
 
Joined: Sep 2004
Posts: 560
Likes: 1
From: Dacula GA
Default Lowering Ideas

Just finished the 68 BB Coupe including a complete front end rebuild with the 550# VBP springs. It was my understanding these springs should lower the front approx 1". This is a alum. headed car which are much lighter than their cast iron counter parts. This car has the L-88 flares so I have plenty of room to come down 2"+/-. Whats everyone's experience with these springs, did they lower the front enough to tell the difference? I have checked to be sure they seated in the perches so I assume they are in correct. What about trimming these springs a coil to get it down. Open for suggestions here. Thanks for everyones input you guys have helped me to no end with minor problems. The turn signal switch problem got corrected after my post, Shee-Mar out of Colo. sent me the replacement switch thanks to the Forum and the help I received from you guys.
Reply
Old Aug 4, 2005 | 09:43 PM
  #2  
kona's Avatar
kona
Drifting
10 Year Member
 
Joined: Oct 2003
Posts: 1,330
Likes: 1
From: Kerrville Texas
Default

When you redid your front end did you tighten everything up with weight on it? If not loosen everything till hand tight drive around the block and re tighten with the car on the ground or on ramps.

Kona
Reply
Old Aug 5, 2005 | 03:43 AM
  #3  
dath's Avatar
dath
Burning Brakes
 
Joined: Jul 2000
Posts: 1,162
Likes: 2
From: Beaverton, OR
Default

On my '74 small block I put the same 550# coils on and didn't notice much difference. Unfortunately I was too stupid to measure before and after, but visually, I didn't notice much if any difference between the stock ones and these. Of course with my factory original stock springs, who knows, they may be saggy after that many years. . .
Reply
Old Aug 5, 2005 | 05:37 AM
  #4  
Jughead's Avatar
Jughead
Senior Member since 1492
Supporting Lifetime Gold
25 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Aug 2000
Posts: 87,919
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Default

Do a search on coils, front end too high, etc. There's been a ton of posts.
Reply
Old Aug 5, 2005 | 08:13 AM
  #5  
1979L82's Avatar
1979L82
Instructor
20 Year Member
All Eyes On Me
 
Joined: Jul 2003
Posts: 107
Likes: 0
From: New Berlin WI
Default lowered mine

I finished this change about 3 months ago and recently had an opportunity to measure after the 4 wheel alignment.

I have a '79 4 speed car w/air if it makes a difference, but removed/kept off the AIR pump after the engine was rebuilt. Like you I installed the 550 lb. springs replacing the original factory L82 performance suspension.

Now that things have settled, the lower edge/lip of the wheel opening is 1" away from the tire. It was about 1.5" before. I am running the recommended P255/60/R15 on original factory aluminum rims. I also replaced the A-arm bushings, where more or less rebuilt the entire front suspension.

At one point I was going to cut off one coil. I am glad I didn't with my current setup.

Did you make certain that the end of the coil was located in the lower A-arm pocket correctly?
Reply
Old Aug 5, 2005 | 08:15 AM
  #6  
BDVT69's Avatar
BDVT69
Racer
 
Joined: Nov 2004
Posts: 422
Likes: 0
From: Owensboro Ky
Default

Originally Posted by kona
When you redid your front end did you tighten everything up with weight on it? If not loosen everything till hand tight drive around the block and re tighten with the car on the ground or on ramps.

Kona
I did a complete body off resto of my 69 vert and put the BB springs in the front. I did not tighten the A arm bolts and took it into the paint/body shop in May. The guys at the shop move my car around from time to time and I have notice just from the moving and sitting for 3 months that the car has lowered almost 3/4 inch. Once I get it back from the shop I will drive it around the block and then tighten the A arm bolts.
Reply
Old Aug 5, 2005 | 09:11 AM
  #7  
MYBAD79's Avatar
MYBAD79
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
Default

Here's mine with the 460lbs springs:






and with 550lbs springs - see a difference ??


Reply
Old Aug 5, 2005 | 06:10 PM
  #8  
66CorvetteCoupe's Avatar
66CorvetteCoupe
Thread Starter
Pro
10 Year Member
 
Joined: Sep 2004
Posts: 560
Likes: 1
From: Dacula GA
Default 550 # Springs

Well to date I have not totally tightened the bushing bolts, they were finger tight until I put it on the ground. After lowering the car to the ground and moving the car forward and backward a few times I snugged the bolts with a wrench. I plan on a cpl of hundred miles before I torque the bushings, I used all Poly bushings so they are a little stiffer than the rubber type. I am going to double check the springs again to assure thay are seated properly, I checked that several times while the car was elevated on the lift. Thanks for all the suggestions I will follow up in a day or two. "RED-BAD" Thats sits good the way I wanted my 68 to sit.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Aug 5, 2005 | 06:25 PM
  #9  
7T3C3TTZ07's Avatar
7T3C3TTZ07
Racer
15 Year Member
 
Joined: Mar 2005
Posts: 294
Likes: 1
From: Racine Wisconsin
Default

I measured all the fender openings and 4 location on frame to garage floor. According to a CF thread, cutting 1/2 coil from a 460# coil will lower the front by 1" and the 550# spring (not cut) will lower the front by 1/2." Based on a the reco of a CF thread, I cut 1/2 coil from the VBP 550# springs in order to lower the front by 1.5" On my ride, it turned out that the front was lowered by 1/2". I assume that without the cut it would have matched the ride height of the original FE7 spring. I'll drive it a bit and trim out 1/2 coil. For info, my front fender opening (measured through center of wheel perpendicular to floor, started at 28.5" and went to 28.0. I am after 27" These dimensions vary according to body mounts, so I also measures at the frame locations listed in the assembly manual.
Reply

Get notified of new replies

To Lowering Ideas





All times are GMT -4. The time now is 01:44 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE