71-71 BB stand differences? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HeavyD · 01-06-2005, 02:45 AM

Hi. I am looking at a few sets of BB stands f/s on the board and noticed the 71 and 72 are different. I guess I am asking why the difference? What was it in 1972 that made GM make new stands? Would like to know before I buy any. Thanks.

**1971Stepside** · 01-06-2005, 10:01 AM

I'm no expert, but I believe I read it was to lower the engine in the frame and it also changed the way the pads mounted to the engine itself.

I bought the 72 mounts for my 71.

Tx Firefighter · 01-06-2005, 10:50 AM

Here are two pictures comparing them.

They are completely different. The 72 style is very similar to the 73-87 style mount. The earlier style is very similar to the small block mount, but it's built different for BBC exhaust manifold clearance.

01-06-2005, 02:45 AM	#1
HeavyD Senior Member Join Date: Sep 2004 Location: Wakaw, Sask, Canada Posts: 3,177	71-72 BB stand differences? Hi. I am looking at a few sets of BB stands f/s on the board and noticed the 71 and 72 are different. I guess I am asking why the difference? What was it in 1972 that made GM make new stands? Would like to know before I buy any. Thanks. __________________ "You can take the man out of PA, but you can't take PA out of the man" Last edited by HeavyD; 01-06-2005 at 02:27 PM.

01-06-2005, 10:01 AM	#2
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	I'm no expert, but I believe I read it was to lower the engine in the frame and it also changed the way the pads mounted to the engine itself. I bought the 72 mounts for my 71. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

01-06-2005, 10:50 AM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Here are two pictures comparing them. They are completely different. The 72 style is very similar to the 73-87 style mount. The earlier style is very similar to the small block mount, but it's built different for BBC exhaust manifold clearance. Attached Images __________________ I'm on the Instagram- @Gearhead_Kevin



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