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b454rat · 09-27-2021, 07:29 AM

Are you looking for numbers for a big block 400 chevy? Ur gonna look till ur eyes bleed cause Chevy didn't make a BB400. They made a 396 and 402, which are the same motor, just a 402 is a .030 over 396. I wanna say it had to do with a car having a bigger motor than in a truck.

09-27-2021, 07:29 AM	#8
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,453	Re: 1970 L47 400 BB Torque and HP chart Are you looking for numbers for a big block 400 chevy? Ur gonna look till ur eyes bleed cause Chevy didn't make a BB400. They made a 396 and 402, which are the same motor, just a 402 is a .030 over 396. I wanna say it had to do with a car having a bigger motor than in a truck.