Challenger340
Well-Known Member
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- Mar 4, 2014
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- jaffray, B.C. Canada
I have NO IDEA why anyone wants/insists on a 400 Block for 500-550 hp Engine builds Vrs a 440 Block ?
I mean what's the 400 Blocks big draw ?
* the slightly lighter weight ?
* the narrower under hood size ?
* the lighter Bobweight ?
The 400 Blocks are stronger than the 440 Blocks.... but that factor isn't at play until above 650 hp where it's not 'if" but 'when' both will break eventually anyway... the 440 Blocks just sooner ?
so what's the big deal ?
And especially given most are pump gas/mufflered street cars.... remember that the 400 Engine builds are typically much shorter Piston skirts = Noisey "Piston Slap" is quite common in operation than the longer piston skirt 440 builds ?
I mean what's the 400 Blocks big draw ?
* the slightly lighter weight ?
* the narrower under hood size ?
* the lighter Bobweight ?
The 400 Blocks are stronger than the 440 Blocks.... but that factor isn't at play until above 650 hp where it's not 'if" but 'when' both will break eventually anyway... the 440 Blocks just sooner ?
so what's the big deal ?
And especially given most are pump gas/mufflered street cars.... remember that the 400 Engine builds are typically much shorter Piston skirts = Noisey "Piston Slap" is quite common in operation than the longer piston skirt 440 builds ?