what horsepower? - Pontiac GTO Forum
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post #1 of 5 (permalink) Old 05-04-2013, 11:42 AM Thread Starter
 
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what horsepower?

Hi folks a newbie here.

I just picked up a pontiac 400 on the cheap but cant figure out what horsepower it is here are the codes

block casting 481988
engine code 0266845 (cant find this code on web anywhere)
date code a235
6x heads


im assuming its 1975 any info would be greatly appreciated

Thanks
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post #2 of 5 (permalink) Old 05-04-2013, 11:50 AM Thread Starter
 
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forgot to add its a yt in engine code
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post #3 of 5 (permalink) Old 05-04-2013, 12:50 PM
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Looks like a 75 block;

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Randy


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post #4 of 5 (permalink) Old 05-04-2013, 04:00 PM Thread Starter
 
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what do you think its worth I got it next to nothing guy wanted it out of his garage
Its a complete engine
Im going with a 455 in my 67 tempest clone and have no use for it

Thanks again
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post #5 of 5 (permalink) Old 05-04-2013, 07:23 PM
 
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If original bore, I would say 2-300. Since it is the more preferred block number, someone would want it to build a stroker motor. I had the identical motor with 5c heads and 4bbl manifold. Sold it for $425, was a good runner, and had a few extra goodies like aluminum valve covers, etc.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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