Small block coils on a big block truck? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wlarue72 · 04-24-2005, 01:34 PM

Anyone ever put small block front coils on a big block truck? Just wondering what kind of drop to expect if any, changes in alignment and ride quality. Thanks, David

BobS · 04-25-2005, 12:06 PM

I put front coils from a small block truck with HD suspension into a big block w/AC Suburban and didn't notice any changes at all. I think the original big block springs were pretty tired though.

Bob

wlarue72 · 04-25-2005, 07:30 PM

Thanks Bob for ythe response. I have some small block springs from a 78 that I have been thinking about putting into my 72 with a big block. The ones I have in there now are uneven. Just trying to figure out what I want to do.....David

BobS · 04-25-2005, 09:20 PM

David,

I'd definitely change the springs if they are uneven. I changed mine because one of them was broken and it affected the handling. Depending on the rate of the springs you have, the front end may drop a little but the truck will be safer.

Bob

SanitysBane · 04-25-2005, 10:15 PM

When I put in the big block in mine I might have had 1/2 inch drop at the most.

wlarue72 · 04-26-2005, 10:11 AM

Thanks for the info guys, looks like I will make the change.....David

04-24-2005, 01:34 PM	#1
wlarue72 Registered User Join Date: Nov 2002 Location: DFW Texas Posts: 244	Small block coils on a big block truck? Anyone ever put small block front coils on a big block truck? Just wondering what kind of drop to expect if any, changes in alignment and ride quality. Thanks, David __________________ 72 Cheyenne Super 402 daily driver. A lifetime project!

04-25-2005, 12:06 PM	#2
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	I put front coils from a small block truck with HD suspension into a big block w/AC Suburban and didn't notice any changes at all. I think the original big block springs were pretty tired though. Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

04-25-2005, 07:30 PM	#3
wlarue72 Registered User Join Date: Nov 2002 Location: DFW Texas Posts: 244	Thanks Bob for ythe response. I have some small block springs from a 78 that I have been thinking about putting into my 72 with a big block. The ones I have in there now are uneven. Just trying to figure out what I want to do.....David __________________ 72 Cheyenne Super 402 daily driver. A lifetime project!

04-25-2005, 09:20 PM	#4
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	David, I'd definitely change the springs if they are uneven. I changed mine because one of them was broken and it affected the handling. Depending on the rate of the springs you have, the front end may drop a little but the truck will be safer. Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

04-25-2005, 10:15 PM	#5
SanitysBane Registered User Join Date: May 2004 Location: Lubbock, Texas Posts: 2,121	When I put in the big block in mine I might have had 1/2 inch drop at the most. __________________ '96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer

04-26-2005, 10:11 AM	#6
wlarue72 Registered User Join Date: Nov 2002 Location: DFW Texas Posts: 244	Thanks for the info guys, looks like I will make the change.....David __________________ 72 Cheyenne Super 402 daily driver. A lifetime project!



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