Search the Community
Showing results for tags '400'.
Found 6 results
-
I am wondering what i could do to my 1971 pontiac t-37 for more power. i am thinking about rebuilding the original 350 and upgrading it or looking for a 400 and putting that in.
-
So I am replacing my engine which was originally 8305 was swap to a 350, but instead of having someone else rebuild it I was going to buy a new one put it in and learn how to rebuild the current 350 in my own spare time. My question is is An old350 Just an old 350 or is that your specific because of the mounting set up? Because I’m finding a lot of good set up’s four 1980 Chevy/Pontiac and older. So can anybody point Me to a direction that can tell me if my car is compatible with any other year of Chevy/ Pontiac years? -
Hi I’m new here, I’ve been sitting parking on a 1974 Pontiac GTO for about a year. I got it running for the first time in about six months yesterday after I rebuilt my carbs. I have two Holley 600 on a tunnel ram intake. I also replaced my point distributor with an HEI. The engine I have in the car is a 1975 firebird 400. The issue I’m running into is the car idles great but when I give it about half throttle it bogs down and stumbles like it’s gonna die but when I take my foot off the gas it reeves back up to the proper RPM and idles fine. Any advise? I assume it’s something amiss with my ign -
My compilation of assorted Pontiac Muscle... PONTIAC • ALL YEARS • PHOTO ALBUM 65GTOTRIPS https://foreverpontiac.com/profile/3605-65gtotrips/
-
I need help figuring out why my 400 is overheating It is a 1987 gen3 Fire-bird Formula (reFormulated) with a 1971 Pontiac 400 block casting #481988 bored .030 over with Keith Black dish pistons, crank has been turned .020/.020. Rotating assembly has been balanced, Number 16 heads with new valves and springs, 72cc cambers. Howard's CAM in.482 ex.470, true dual exhaust, new water pump with cast impeller, divider plate clearance set as close as possible to impeller. New 4 core aluminum radiator with 2 10 inch electric fans pulling air and 2 12 inch electric fans pushing air. A/C condenser re -
Well fellas, I will finally have some more time Saturday to get to tweaking the issues with the '76 GP's idle/accel issues. Started with running terrible and popping back through the carb. After a new fuel pump (smelled fuel in the oil), wix inline filter and new lines, and 2 Rochester carb rebuilds (soaked the parts overnight in the carb solvent the 2nd time as well as installing a new brass float), re gapped the new plugs to .045 that were gapped at .080 by the seller, new vaccum lines, and I also have the new pcv valve and lines (there wasn't one) to install Sat. It now accelerates MUCH bet
