BBC Small block stands ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RIDDLA · 06-17-2010, 02:54 PM

Has anyone used small block towers for a big block ? Can it be done? What problems are there?

**kwmech** · 06-17-2010, 03:41 PM

Exhaust clearance will be an issue

petey-pablo · 06-17-2010, 06:07 PM

It can be done if I am not mistake you add washers to the towers or so for some reason or another. but then again Anything can be done with little modification? But why would you want to do it the cheap way vs the right way. My 454BB was put in on my original inline6 towers, it drove fine motor sat back too close to firewal valve covers rubbed on firewal.. I have changed it since to the original 72 only mounts and towers Looks much better and I know it's safe.

*Sublvr72* · 06-17-2010, 07:53 PM

Here's a pic of the differences-

On the left is the BBC motor mount, and on the right is the SBC motor mount

and you can see the differences in the mounting holes for where the two mounts go on the cross member

KrazyRay · 06-18-2010, 01:35 AM

I tried to do it back in 1988 and the exhaust was a problem. I went to the local Chevy dealer and bought new big block stands for $28 a piece.

Shyguy · 06-18-2010, 09:03 AM

When we put the 454 in my truck we tried using the small block stands and they interfered with the headers.

We ended up using the big block stands out of a mid 70's C-20. When we put the engine in we hooked it to the old 4 speed transmission and let the engine settle where it wanted and drilled new holes. The distance from the firewall and the radiator turned out real good.

Danny

RIDDLA · 08-11-2010, 04:09 PM

Thank you for the help the pictures helped alot bought some bbc stands

06-17-2010, 02:54 PM	#1
RIDDLA Registered User Join Date: Aug 2002 Location: Santa Fe NM Posts: 393	BBC Small block stands ?? Has anyone used small block towers for a big block ? Can it be done? What problems are there? __________________ 68 GMC-Stripshow 70 Chevy Monte Carlo 72 Chevy Monte Carlo LOLO 72 Chevy Suburban Blurban 74 Vw Bug 78 Chevy k10 lwb 78 Chevy k10 swb 03 Cadillac Escalade-Duecesix 84 Cadillac Coupe Deville DeElegance B.O. A Lifestyle Money Cant Buy! Win,Lose, or Tie I'm a Raider till i die

06-17-2010, 03:41 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,599	Re: BBC Small block stands ?? Exhaust clearance will be an issue

06-17-2010, 06:07 PM	#3
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	Re: BBC Small block stands ?? It can be done if I am not mistake you add washers to the towers or so for some reason or another. but then again Anything can be done with little modification? But why would you want to do it the cheap way vs the right way. My 454BB was put in on my original inline6 towers, it drove fine motor sat back too close to firewal valve covers rubbed on firewal.. I have changed it since to the original 72 only mounts and towers Looks much better and I know it's safe. __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net

06-17-2010, 07:53 PM	#4
Sublvr72 Account Suspended Join Date: May 2004 Location: Simi Valley, CA Posts: 1,387	Re: BBC Small block stands ?? Here's a pic of the differences- On the left is the BBC motor mount, and on the right is the SBC motor mount and you can see the differences in the mounting holes for where the two mounts go on the cross member

06-18-2010, 01:35 AM	#5
KrazyRay Registered User Join Date: Jun 2009 Location: Oroville, CA Posts: 4,827	Re: BBC Small block stands ?? I tried to do it back in 1988 and the exhaust was a problem. I went to the local Chevy dealer and bought new big block stands for $28 a piece.

06-18-2010, 09:03 AM	#6
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: BBC Small block stands ?? When we put the 454 in my truck we tried using the small block stands and they interfered with the headers. We ended up using the big block stands out of a mid 70's C-20. When we put the engine in we hooked it to the old 4 speed transmission and let the engine settle where it wanted and drilled new holes. The distance from the firewall and the radiator turned out real good. Danny __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.

08-11-2010, 04:09 PM	#7
RIDDLA Registered User Join Date: Aug 2002 Location: Santa Fe NM Posts: 393	Re: BBC Small block stands ?? Thank you for the help the pictures helped alot bought some bbc stands __________________ 68 GMC-Stripshow 70 Chevy Monte Carlo 72 Chevy Monte Carlo LOLO 72 Chevy Suburban Blurban 74 Vw Bug 78 Chevy k10 lwb 78 Chevy k10 swb 03 Cadillac Escalade-Duecesix 84 Cadillac Coupe Deville DeElegance B.O. A Lifestyle Money Cant Buy! Win,Lose, or Tie I'm a Raider till i die



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