Looking at an A12

[dan juhasz]

Looking at an A12. The engine was replaced but I’m a little confused about the stampings on the engine pad. Wondering if you guys could shed a little light . S 440?, casting on block is clearly 1/18/69, clean pad above the oil pan rail. Any info on the top engine pad and correlation to the casting date would help. I know the WT is water test but that’s about it.
Thanks Dan

 

[440 PHIXX]

It looks like a good 440 block to me. It has the stiffening ribs. Some guys like to see a casting date before the scheduled build date of the car. I ain’t one of them.

 

[440 PHIXX]

Oh… and it says “HP”. Again, that doesn’t really mean anything 50 years later.

 

[dan juhasz]

It looks like a good 440 block to me. It has the stiffening ribs. Some guys like to see a casting date before the scheduled build date of the car. I ain’t one of them.

What’s your take on the S440? Something cast in 69 shouldn’t that be a an E

 

[khryslerkid]

"S" pertaining to the year would be 1962. But we know that's not right. In this info "S" could mean "Special Engine".

Moparts on the Web - Main Index

 

[dan juhasz]

"S" pertaining to the year would be 1962. But we know that's not right. In this info "S" could mean "Special Engine".

Moparts on the Web - Main Index

Ok the claim is that it was a Mopar 6 barrel/pack replacement. So maybe the S eludes to that?

 

[khryslerkid]

Things could have changed with the engine over the years but if it still has the Six Pack guts it should have a damper like this...

 

[dan juhasz]

Things could have changed with the engine over the years but if it still has the Six Pack guts it should have a damper like this...
View attachment 1497736

Is the difference the cast in weighted area ?

 

[RemCharger]

Things could have changed with the engine over the years but if it still has the Six Pack guts it should have a damper like this...
View attachment 1497736

I thought the 69s had regular rotating guts and the 70s got the fat rods and weighted balancer.

 

[dadsbee]

S is a service block replaced by the dealer under warrantee... or many years later by on owner to lead you to believe that. Is the pan rail "pad" still milled or smooth?

 

[33 IMP]

Well, my comment has been covered already. Glad I read them all.
S=service (warranty replacement). That's why no Vin on the pan rail.
A12 would be a 69 1/2, light rod motor, neutral balancer. 70-up v code would be a heavy rod motor with a counterweighted balancer.

 

[dan juhasz]

S is a service block replaced by the dealer under warrantee... or many years later by on owner to lead you to believe that. Is the pan rail "pad" still milled or smooth?

That picture of the pan rail pad is low resolution but appears to be milled and blank

 

[440 PHIXX]

Well, my comment has been covered already. Glad I read them all.
S=service (warranty replacement). That's why no Vin on the pan rail.
A12 would be a 69 1/2, light rod motor, neutral balancer. 70-up v code would be a heavy rod motor with a counterweighted balancer.

All ‘70-‘72 440 “HP” stamped engines, including the 4 bbl. I believe.

 

[33 IMP]

I don't know for sure what got, and what didn't get, the heavy rods. I have heard of motorhome engines with "six pack" rods.
All I know is that my A12 has got standard weight LY 440 rods in it. (With maybe a little factory romance added. )

 

[3white74]

69 440 6 engine normal balancer and rods .......1970 heavier balancer and rods .....looks like a replacement engine to me with no vin

 

[440 PHIXX]

I don't know for sure what got, and what didn't get, the heavy rods. I have heard of motorhome engines with "six pack" rods.
All I know is that my A12 has got standard weight LY 440 rods in it. (With maybe a little factory romance added. )

I pulled a 440 out of a 1970 4 door New Yorker back in the mid 80’s. It had the dual snorkel “TNT” air cleaner. It had the heavy rods, pork chop balancer, windage tray, and weights on the converter. F440 HP2 on the pad. I forgot to check the VIN on the dash. I guess it would have been CH43U0.

 

[gtx6970]

Agree with dadsbee.

S is over the counter service block.
Doesn't necessarily mean warranty block.

As mentioned E was assembled for 1969 model year applications

 

[F6A12]

As stated above the heavy six pack parts didn't start till 1970