1971 T/A UPDATE

[1 Wild R/T]

Freeze damage??

Yup... Seen that a few times even living here in a warmer climate..... I guess people forget it does still get cold at times...

[RUNCHARGER]

Did you run that block as it is without knowing? Sometimes it's better not to know.

[anlauto]

It looks ugly, but if it holds water who cares ?

[HP_Cuda]

Looks a bit iffy, hopefully it all works out.

[700 AKN]

Did you run that block as it is without knowing? Sometimes it's better not to know.

It was a real surprise to me finding out about this damage.   I had the engine rebuilt back in 1989 and nothing was said about damage.  Also I have never had any water leaking into the block since I have owned the car.  Oil was showing nothing and car never overheated when running.   The only reason I decided to get the motor rebuilt was because 2 cylinders were showing very low pressure and the rest were starting down the same road.   Also since the rebuild in 1989 I had very low vacuum because of the purple cam that was installed at the time.  I have always had poor brakes and I drive with both feet.   Sorry for getting off topic.  I hope you'll forgive me Alan.

[RUNCHARGER]

Then I would pressure check it again after machine work and use it.

[HP_Cuda]

I didn't think that purple cams are all that wild and most folks are getting 14-15" of vacuum from them.

[Morty426]

Having a TA block adds value and increases the ability to sell the car

[Chryco Psycho]

Purple shaft cams cover a wide range from bone stock to crazy , most other than the stock repro cams have more overlap & low idle vacuum

[anlauto]

@6bblgt @ScottSmith_Harms
So the guy got me the stamped numbers off the block, but I'm confused a bit:
He says:
GW340P3463074 (J11X5)   Curious thing is, the J11X5 is upside down compared to all the rest. Any idea what that might be ?

I think what he thought was an upside down 5 on the end could be a 9 ? for GW340P34630749 Does that make more sense ?

[torredcuda]

Interesting that there is still no standard rallye dash or floor shift for automatics mentioned in the '71 ad. That would be a bummer to order up this car new with all the race inspired equipment hung on it, only to jump in and discover you've got a standard dash and column shift. I wonder if a '71 T/A would be allowed to have AC since its a 4bbl instead of a six pack.

As for the original post, I remember seeing a 340 advertised as a '71 T/A block on Indy's craigslist for quite a while, but figured it was misidentified. The ad reran for a long time before someone bit.

Always that it was weird for most T/As and AARs to be such low option cars with standard dash clusters when you were obviously wanting a performance model not  a low performance Barracuda.

[6bblgt]

GW340P3463074 (J11X5)

G = 1971 model year
W = Windsor, Ontario engine assembly plant
340 = cu.in.
P = premium fuel
3463 = Wednesday January 20, 1971 engine assembly date
0745 = sequence number (just looks like the "5" is upside down)

J11 =    Champion spark plug 

Maltese cross & "X" = .010" undersized crankshaft (GG's "white book" doesn't specify rods, mains or both?)

[mccannix]

11-24-69 must have been the popular leftover TA block series to use in some 71 Demons.
I have this TA block, same 11-24-69 date, that I removed from a 71 Sassy Grass 340 auto Demon in about 1980
GW340P33110449
For the record this did NOT have TA heads, nor should the one Alan speaks of have, on installation IMHO.