Pontiac 400.....tell me what you know about it
12-22-2008, 07:01 PM
#21
1. The X7 has a high nickel content in the block and extra webbing!
2. Many stock heads flow very good and have nice big valves, intake 2.06" exhaust 1.72" in them to move a lot of fuel and air and have low cc's like 68!
3. If you take a 1969 350 HO with #48 heads on it the compression ratio is 10.5 and a 1969 RAIII 400 with #48 heads on it has a compression ratio of 10.75. The only difference is the bore. A 400 engine with a cut down 428 crank gives you a 440 CI and if it is bored out to install a 455 piston your up to 450+ CI. Take a 455 block and bore it 30 over and get 469 CI's. Some of the late pontiac engines even had dished pistons in them.
4. I forgot all about the 421 and the 301! My dad actually had a 1962 GP with a 421 tri power 4 spd he bought brand new.
5. That is not 100% true. I have had plenty of 1969 & 1970 models and later without the correct vin number on engines I knew were original. Now by the late 70's GM may have marked all their engines. I have a close friend that has a 78 he bought new so I will check with him and see what he saids.
I hope this helps some! I am no expert, but I have been blessed with owning several Pontiacs over the years! Like I stated before to the original thread starter buy the TA and have fun with it!
N2
12-22-2008, 09:43 PM
#22
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Well i went up to north GA to visit some of the family this weekend and i was supposed to go see the guy about the TA. I was about to take the exit off of 85 to go to his house when he called me and said that he had just discovered that the heater core had gone out and the passenger side floor was soaked. Needless to say I decided to pass on the car. If it was closer I would have still looked at it but with no other way to get it home then by driving it, it would have been a waste of time.
12-23-2008, 05:51 AM
#24
Well i went up to north GA to visit some of the family this weekend and i was supposed to go see the guy about the TA. I was about to take the exit off of 85 to go to his house when he called me and said that he had just discovered that the heater core had gone out and the passenger side floor was soaked. Needless to say I decided to pass on the car. If it was closer I would have still looked at it but with no other way to get it home then by driving it, it would have been a waste of time.
N2
12-23-2008, 05:55 AM
#25
I guess you meant to say the 400s are like SBC. regarding changing parts out.
The Pontiac engine is nothing like a SBC as stated early they are mostly considered Big Blocks. The great thing is for example you can put a set of 428 heads on a 350 block and so on.
N2
12-23-2008, 07:10 AM
#26
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You could have just cut the heater hose going into the heater core and connected it to the head and bypassed the heater core all together pulled the carpet up and cleaned up the floorboard. Then got the car home wearing a coat and gloves and had a big smile on your face all the way home.
N2
N2
12-23-2008, 07:13 AM
#27
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pm me a number for the seller or a link....i may go get it. its supposed to be almost 70 this weekend. i think i can have the heater bypassed in say.....................2 minutes
12-23-2008, 09:04 PM
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here you go guys...its probably a great deal, im just passing. Its supposed to have all ac equipment hooked up, just needs recharging....also, it has brand new autometer gauges and a new interior. Only needs one rust spot patched. Its located in Jefferson GA, the guy had it listed for 3800, no listed for 3000 OBO
http://atlanta.craigslist.org/cto/965225047.html
http://atlanta.craigslist.org/cto/965225047.html
12-23-2008, 10:15 PM
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Not a bad deal. With some paint and body work, it'd be an awesome ride. I paid $3,800 for my 400/TH400'd '80 and drove it daily for almost two years before getting my Camaro.
If anyone snatches it up, I'm parting out the Pontiac drive train and have a few new parts, like the intake, cap, rotor, harmonic balancer and other junk up for grabs.
If anyone snatches it up, I'm parting out the Pontiac drive train and have a few new parts, like the intake, cap, rotor, harmonic balancer and other junk up for grabs.
