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That's superficial, Jeff, and can be proven wrong. By Gerry Proctor - 09/13/2005 7:49:40 AM; IP 207.133.188.254 An FE 332, which is a member of the bigblock family, has none of those attributes when compared to a 351W -a member of the smallblock family. There is also no logical correlation between displacement and redline. Many smallblocks are all done at 4,500 and many bigblocks are just starting to come to life at this rpm. This is a function of purpose rather than casting molds. The distinction between what is a smallblock and what is a bigblock is very arbitrary at best since the factories never made these classifications. These definitions were made in aftermarket nomenclature and in bench racing. Some examples are quite obvious. A Ford 302 being a smallblock and a 460 being a bigblock. But how do you define a 326 Pontiac as compared to a 455 Pontiac? Both are idential extenally and weigh the same. Is a 400 Chevy a bigblock and a 396 a smallblock? And if you bore and stroke a 351W out to 427, did you change it to a bigblock? It's always best to refer to engine families rather than the vague notion of arbitrary classification rooted in the mind. You are right in many regards, but not in absolutes.

This thread, so far...

Skip Navigation Links.  Difference between big and small blocks -- Tristan, 09/11/2005  RE: Difference between big and small blocks -- Jeff H., 09/11/2005 That's superficial, Jeff, and can be proven wrong. -- Gerry Proctor, 09/13/2005  It all comes down to bore spacing -- Bill Conley, 09/14/2005  theory of relativity? -- John, 09/14/2005  RE: That's superficial, Jeff, and can be proven wrong. -- Jeff H., 09/17/2005  Let's keep the arguments friendly, Ok? Just 'splain. :-) [n/m] -- Mr F, 09/18/2005  Gerry.... -- Jeff H., 09/20/2005

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