Re: 1970 400 original engine question
No 400 small blocks where used in 67-72 trucks that I know of. This engine was put in Caprices, Montes, Chevelles and many station wagons. The truck 400 is actually 402 BB which is actually a bored 396 BB. Confused yet? Also, no BB were ever installed from the factory into 4x4's. GM moved the engine/trans rearward to clear the front diff so that left no room for the wide BB at the firewall.
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The Good:
- 72 GMC Jimmy 4x4 - 307 cid / 350 th
- 70 Chevy Suburban 1/2T 2wd - 454 cid /400 th
- 96 Chevy Impala SS - mainly stock
- 98 Chevy Tahoe LT 4x4 - all stock
The Bad:
- 86 Chevy Suburban 1/2T 4x4 - winter beater
The Ugly:
- 72 Chevy Suburban 1/2T 2wd - parts truck
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