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Re: 67 GMC 305 V6 swap to a SBC 305
reminds me of my old 72 2wd GMC. 250-6/3tree. I hated how gutless it was, and built a modest 305 out of my mom's old 78 Impala we retired. TH350 swap while I was at it, leaving the 4.11 rearend for a while, boy was that truck quick to ~80, but thats as fast as it'd go.
Done properly you'd never be able to tell from a hood pop. The only tell tale sign in my swap was bolts instead of rivets on the trans crossmember. But I had a parts truck that donated everything to do it factory style.
Those 305's are good basic engines, with headers, intake/carb on stock pistons/rods/heads, my pickup would run circles around Dad's 69 2wd Chevy with a 350/th350. Even when I went to a 3.07 rearend to his 3.73. So keep an eye on the rearend, I dont know what the 305 V6 came with, but the 305 V8 wont like a 4.11 unless you want to snap necks and top out around 80.
Erik
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