BBC vs SBC Front Coil Springs - - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**lks dcvn** · 08-20-2009, 08:20 AM

Can they be interchanged w/out issue for a weekend cruiser?

Just wondering how much sooner the SBC springs would sag with a BBC in the engine bay or if there are other issues to be concerned with.

sick69 · 08-20-2009, 08:40 AM

subscribed,,,very interested in this one aswell

Frank

Tx Firefighter · 08-20-2009, 11:04 AM

I've swapped big blocks into small block and even six cylinder trucks before and never had the front sag over half an inch or so afterwards. As far as I am concerned, they interchange for my purposes.

STOCKISH · 08-20-2009, 12:49 PM

I have a BBC in my truck with SBC springs fron ECE. It might have dropped
1/4 inch at the most. Still handles the same and rides great.

Longhorn Man · 08-20-2009, 01:02 PM

apples to oranges here, but when I puled the small block out of my one ton, and installed a caddy big block, there was less than a 1/4 inch drop.
I say apples to oranges becouse the caddy engine is llighter than a BBC, and my truck is a one ton with HD front springs.

**lks dcvn** · 08-20-2009, 01:14 PM

Thx for the responses everybody - just didn't want to see an issue up the road coming if I did this.

Longhorn Man · 08-20-2009, 01:36 PM

thing to remember, they are trucks, not cars. It matters more on a car.

08-20-2009, 08:20 AM	#1
lks dcvn Registered User Join Date: Jan 2007 Location: Columbus, Ohio Posts: 4,339	BBC vs SBC Front Coil Springs - Can they be interchanged w/out issue for a weekend cruiser? Just wondering how much sooner the SBC springs would sag with a BBC in the engine bay or if there are other issues to be concerned with.

08-20-2009, 08:40 AM	#2
sick69 Registered User Join Date: Sep 2006 Location: colorado springs colorado Posts: 737	Re: BBC vs SBC Front Coil Springs - subscribed,,,very interested in this one aswell Frank __________________ 70 chevy lwb c10 454/th400 and a 9" rearend suicide doors, marker light fuel fill, 4" cowl , mini tub

08-20-2009, 11:04 AM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: BBC vs SBC Front Coil Springs - I've swapped big blocks into small block and even six cylinder trucks before and never had the front sag over half an inch or so afterwards. As far as I am concerned, they interchange for my purposes. __________________ I'm on the Instagram- @Gearhead_Kevin

08-20-2009, 12:49 PM	#4
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Re: BBC vs SBC Front Coil Springs - I have a BBC in my truck with SBC springs fron ECE. It might have dropped 1/4 inch at the most. Still handles the same and rides great. __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

08-20-2009, 01:02 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: BBC vs SBC Front Coil Springs - apples to oranges here, but when I puled the small block out of my one ton, and installed a caddy big block, there was less than a 1/4 inch drop. I say apples to oranges becouse the caddy engine is llighter than a BBC, and my truck is a one ton with HD front springs.

08-20-2009, 01:14 PM	#6
lks dcvn Registered User Join Date: Jan 2007 Location: Columbus, Ohio Posts: 4,339	Re: BBC vs SBC Front Coil Springs - Thx for the responses everybody - just didn't want to see an issue up the road coming if I did this.

08-20-2009, 01:36 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: BBC vs SBC Front Coil Springs - thing to remember, they are trucks, not cars. It matters more on a car.

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