SB to BB swap on my 74 3/4.....same motor mounts? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Gray Ghost · 03-03-2005, 10:25 AM

Bottom line...you don't have to change mounts to swap in a BB or SB in place of either one in a 73-74 3/4 ton.

superchevy · 03-03-2005, 11:09 AM

Bottom line is they are different.

They'll work, but they're not the same, and that was the question.
Gee, who can pi$$ farther?

03-03-2005, 10:25 AM	#26
Gray Ghost Senior Member Join Date: Sep 2004 Location: Terrell, TX Posts: 1,967	Bottom line...you don't have to change mounts to swap in a BB or SB in place of either one in a 73-74 3/4 ton. __________________ Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps.

03-03-2005, 11:09 AM	#27
superchevy Got big-block? Join Date: Jul 2000 Location: Austin, Texas Posts: 2,453	Bottom line is they are different. They'll work, but they're not the same, and that was the question. Gee, who can pi$$ farther? __________________ '68 CST SWB factory 396/T400 buddy buckets, a/c, ps, pb '72 Corvette convertible 454/4spd/ac, ps, pb '73 GMC Sierra Grande short wide 454/T400 ps, pb, ac '77 K5 Blazer black on red, 350/T350/NP205 ps, pb, ac all original '78 GMC Sierra Classic short wide 454/T400 ps, pb, ac '72 GMC Sprint SP454. 1 of 38 built. '73 GMC Sprint SP454. 1 of 71 built. '75 GMC Sprint SP454. 1 of 25 built. SOLD! '72 GMC K25 4x4 468/4L80e/NP205 build thread http://67-72chevytrucks.com/vboard/s...23#post4324423 SOLD!'55 Chevy gasser 496/4spd build thread http://67-72chevytrucks.com/vboard/s...96#post4324396

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