Quote:
Originally Posted by XfireZ51
396 was a big block back in the day, so displacement was not the determination for the designation. BB cylinder heads would not work on a small block and vice versa.
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Well they actually had a 366 big block chevy for delivery trucks but i think it was designed w a small piston so as to have a thick cylinder bore as they expected extended periods of full throttle operation.
But in my opinion 396 is the same as 400 cubic inches especially since i qualified my statement with the word 'about' haha... The 402 BB was a 396 with a taller deck height for trucks as i seem to recall.
The conversation wouldnt be complete if we didnt talk about the BBC canted valve angles and better rocker ratios, but like the LT5, weight and packaging were a big part of its demise.