Quote:
Originally Posted by davepl
I'm probably the only guy on this board who has built one exactly to stock specifications with the stock heads and cam and dyno'd the thing on an actual engine dyno:
My take-away is that the cam is for tractors. No joke, it's really made to work well with a PTO. So any performance notion will come with a new cam. Then pocket porting the intakes of the little peanut heads. Then you're looking at better heads and intake.
With better heads and intake, it's a fine motor. With the stock cam/heads/intake it set up to idle and make torque.
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Those are good numbers Dave for a bone stock 402.
Looks to be close to 330hp on the engine dyno...which is slightly more than GM listed for theirs, which I think was 240hp? or something close to that and then, what....310hp back up to the 1970 rating system.
Correct me if I'm wrong on that.
Anywhooo, with all the accessories on and it installed in the chassis I assume the approximate loss to the rear wheels would be?....what about 20-25%?
Which still leaves you in the mid 200's which is not bad so long as the torque is there.
Interesting stuff! Always good to see some numbers around these kinds of things to provide a good datum point for power and torque requirements.
All good
Coley
