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Old 07-11-2011, 09:40 PM   #74
67_C-30
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Re: Official Difference btween the 396 and 402 BB Because you asked.

Quote:
Originally Posted by special-K View Post
The point I was making is about every motor from about every manufacturer got an increase in cubes in this general time frame,not just the 396. So why try to make something special of it? Maybe it wasn't about emissions,more like muscle wars. But 425 became 455,426 became 455 and on,just like Fords and even Volkswagens. A 350 isn't even 350 cubic inches,but that's what they badge it. They just rounded it off,like a 402 badges as a 400. Trucks didn't have 400 SBCs in 70-72,so not confusing at all.
I see what you're trying to say, and I agree - increasing cubic inches and rounding off cu in was nothing uncommon. You have to admit though, GM never had another engine that was called one thing in a car and another thing in a truck, while being the same engine. Most car guys know there is no such as a Chevy 400 big block, yet our trucks have a 400 emblem. When you look in an engine manual, you see 402. The only 400 in there is a smal block. I've only had my '70 CST a little over a week and I've had to explain why my SPID says 396, my fender says 400, and the literature confirming that it is the original engine says its a 402. No other GM vehicle ever had this confusion. That's why I consider it out of the ordinary.
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