409 on the dyno - Impala Tech
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post #1 of 3 (permalink) Old 09-26-2007, 03:53 PM Thread Starter
Join Date: Sep 2007
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409 on the dyno

I took my 62 SS 409 to the dyno today and I was pleased with the results. On a mustang dyno it put 242rwhp and 359rwtq.

We only took it up to 4000 rpm to protect the engine.

It was fun to see it go.
mitchwrx is offline  
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post #2 of 3 (permalink) Old 09-26-2007, 05:11 PM
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1964 Impala Dude is offline  
post #3 of 3 (permalink) Old 09-27-2007, 09:27 PM
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That 406 will rev like a 327 if you let it. Of course considering how rare they are today I would want all forged parts in the bottom end before I tried it. I am sure you are aware a Mark IV forged steel crank (or a 427 forged steel crank for that mater) can be easily modified to fit your 409 block for close to 500 cubes.

Just an idea come rebuild time.

Big Dave
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