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Sure you can twist it to 6000 but it's not doing any good with those stock heads and mild cam. It will be faster if you shift it at 5000-5500, I would fix the trans governor issue.

Sheldon

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Exactly. Plus the engine will live longer.

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x3

depending on the cam, it's likely all done at 5500....but even if the cam is a higher rpm unit, the heads are done by then anyways. head flow, small cam, hydraulic lifters....it all adds up to the same thing.

On a related note, HR or one of the other mags did a test awhile ago on all the big block motors; they built them all using edelbrock heads, the same compression and cam specs, carb ets. The 440 came in 3rd IIRC on the hp (the Buick used more radical heads because Eddy didn't make any for it) and 1st in torque.....quite an accomplishment for a 440 cu in motor being compared to the Buick, Olds and Pontiac 455's.....I'm sure more than one Buick guy woofed up his cornflakes over that! .

The 440 is a low end motor with a healthy mid range punch.......it isn't suited to high rpm power production.

Dave