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what engine is this

Old 08-18-2012, 08:18 PM
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Default what engine is this

i posted earlier that i had a 65 gto with a 455 in it on the block just below the head on the passenger side are these numbers 0386343 just below that in the middle of the numbers is y9 i know the 455 is not original that is why i'm trying to find out what year it is so i can order partsi'm not positive it is a 455 that is what i was told when i bought it he said he thought it was a 455 hd and that it had 400 heads on it so any help i can get would be appreciated thank you
Old 08-18-2012, 08:20 PM
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Originally Posted by driverjoe
i posted earlier that i had a 65 gto with a 455 in it on the block just below the head on the passenger side are these numbers 0386343 just below that in the middle of the numbers is y9 i know the 455 is not original that is why i'm trying to find out what year it is so i can order partsi'm not positive it is a 455 that is what i was told when i bought it he said he thought it was a 455 hd and that it had 400 heads on it so any help i can get would be appreciated thank you

good ole bop stuff...

I cant remember the differences to tell you anything other than my buddies 71 bird with a 455 was/is a BAD ****
Old 08-18-2012, 08:41 PM
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Default Gto engine

A y9 block is a 1974 455 ci.

http://www.gmclassicmusclecars.com/pontiac-block-s.html

Last edited by FRITZM; 08-18-2012 at 08:47 PM.
Old 08-19-2012, 01:18 PM
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thanks i appreciate everyones help


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