Engine #

dualquadpete · Canadian Poncho Superstar!

Engine #

dualquadpete · Canadian Poncho Superstar!

nobody has replied ???

4SPEED427 · A Poncho Legend!

Sorry, I never saw this. I may be wrong but I don't think that stamping gives us enough to decipher it. The best would be the casting number on the back of the block, left side behind the head just in front of where the bellhousing attaches. Can you see that casting number by chance?

oshawacliff · Poncho Master!

Email the photo to Todd or a moderator.

You know there is help here..... welcome back

Cliff

dualquadpete · Canadian Poncho Superstar!

Engine tucked under firewall. There is another # below KO that starts with C and long numbers! VIN?? I finally got it running, distributor out of time and 3 dead S/Plugs + old gas! Runs well on 8 cylinders!!

67Poncho · Uber Guru

Are you missing a digit ((letter)) on the tail end?

Decoding small block Chevy engine suffix codes and stamped numbers UTU - ZY.jpeg

-- Edited by 67Poncho on Friday 5th of January 2024 10:01:43 AM

dualquadpete · Canadian Poncho Superstar!

Yuup! # on pad is KO 921T4X # under that is C91108912 and block casting is 9970010 block could be 327 / 350 ?

67Poncho · Uber Guru

dualquadpete wrote:
Yuup! # on pad is KO 921T4X # under that is C91108912 and block casting is 9970010 block could be 327 / 350 ?

K 09 21 "T" 4X? You had K 09 21 "1" 4X before. Are you sure the cast number is not 3970010 instead of 9970010? That number isn't listed.

-- Edited by 67Poncho on Friday 5th of January 2024 07:08:32 PM

dualquadpete · Canadian Poncho Superstar!

Never did figure out what it was ??? Got it running and did some repairs, But sold car last week!! Just glad it;s gone, made some $ so that worked !!!!