BB mount questions
 

If anyone knows the best way to install a BB into a GMC 4x4, please let me know. WHat is best to do with the body mounts?


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1967 GMC 4x4, pearl white
66,000 original miles
and soon to have a 454

have fun... I've heard there are issues with the firewall if you want to run HEI and the crossmember needs to move on 4X4's

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'70 C-10 Short/Fleet 350 (in the family since new)
'70 C-10 Long/Fleet 307 (the Death Machine because it seems like it'll kill you to drive in it)

I beleive you need to do like a 2in body lift someone like Tennman can tell you for sure.

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67 GMC Stepside(UNDER CONSTRUCTION)
67 GMC Custom
67 Chevy C-30

Did you have to change the frame cradle that the frame motor mounts attach to? What was the original engine?

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68 GMC 3/4 4x4 Stepside

I put a bb in my 69 swb 4x4 that originally had a 307. Moved it forward 2 inches. Drilled new holes for the crossmember and moved the clutch pivot forward. No problems with my HEI now. Did change to the newer throttle linkage though (no solid rod)
good luck

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1969 swb 4x4 gmc bb/4spd
1972 k30 longhorn bb/ac
1992 k3500 xt/cab 454
Alborn Minn Can help with freight to Kansas from time to time