View Full Version : What 350 is in a 77 GP?
car guy
02-18-2007, 11:03 PM
I was wondering if anyone could tell me what 350 went in the 77 Grand Prix. Was it a Pontiac, Olds, Or chevy?
Old Goat Racer
02-19-2007, 12:33 AM
Should be a Pontiac, last year for the 350
77 Canamman
02-19-2007, 11:02 AM
The Olds 350 was used in California and high altitude counties.
car guy
02-21-2007, 10:50 AM
Thanks for the information.
Old Goat Racer
02-21-2007, 02:52 PM
Guess you have to pop the hood to be sure.
pont3
02-21-2007, 06:28 PM
More than likely it's a 301. If it's not a 400 Pontiac, which came in SJ, LJ, then probably a 301 Pontiac.
Wanna66GP
02-21-2007, 09:56 PM
Would the 301 and 350 take the same lifters? I had to put a set in mine and I got them from a friend of mine at Eaton. He said the number I gave him cross referenced to Eaton's 350 Pontiac aftermarket. Don't know if that helps.
WDCreech
02-22-2007, 10:26 PM
According to Pete McCarthy's book, there were only two pontiac engines available in a '77 GP. A 170hp, 4bbl, 350, and a 180hp, 4bbl, 400. Block codes for the 350 were YA or YB, for the 400 YU or Y4.
toddmoll
02-23-2007, 12:35 AM
Mine came with an Olds 350 and a Chevy rearend. I miss that car.
Todd.
455Grandville
02-23-2007, 01:06 AM
Olds motors were common in California, they ran alot cleaner for the stricter emissions.
According to Pete McCarthy's book, there were only two pontiac engines available in a '77 GP. A 170hp, 4bbl, 350, and a 180hp, 4bbl, 400. Block codes for the 350 were YA or YB, for the 400 YU or Y4.
We had a 77 with a 301 for a short while. This web link gives good info compiled by POCI:
http://www.pontiacserver.com/gph3_4.html
WDCreech
02-23-2007, 02:13 AM
Very interesting link, BR57. Since I'm not much into street power, I don't see this stuff. Thanks!