identifying a 6 pack block?

[69redrunner]

Is there any way to confirm that an engine being advertised for sale as an original 440 6pack is the real deal?
It's a 1970 engine.
Was there anything stamped on the pad that would help? Vin# if legible?

 

[Badvert65]

I don't think there is any way to identify this unless the entire VIN # is stamped somewhere on it. I don't think the whole number ever gets put on them, just the last few digits. There wasn't anything special done to the blocks. Six pack mods revolved around the cam, rods, pistons, intake, etc.

 

[69Coronetrt]

Compare the VIN on the block to the VIN or fender tag. Other than that... no way to confirm it. There are no special markings on a 6bbl car block. There is no difference in a block either. The blocks were all the same regardless of what intake was attached.

 

[69redrunner]

Compare the VIN on the block to the VIN or fender tag. Other than that... no way to confirm it. There are no special markings on a 6bbl car block. There is no difference in a block either. The blocks were all the same regardless of what intake was attached.

The seller is offering just the complete motor, so no vin tag or fender tag to compare it to.

 

[Jim's Maxie]

Compare the VIN on the block to the VIN or fender tag. Other than that... no way to confirm it. There are no special markings on a 6bbl car block. There is no difference in a block either. The blocks were all the same regardless of what intake was attached.

Actually there is another way,if you can verify 110% that the engine has "never" been apart .i

 

[clazar]

I always thought all 70 & 71 HP 440 blocks could be 6 pack engines. Other than the intake, the heads had different springs. Also the original 6 pack cams are 3 bolt also.

Chuck

 

[62MAX]

I always thought all 70 & 71 HP 440 blocks could be 6 pack engines. Other than the intake, the heads had different springs. Also the original 6 pack cams are 3 bolt also.

Chuck

70/71 HP had flat top pistons,6pk had valve reliefs and nitrided crank.

 

[Meep-Meep]

Can't prove or disprove unless, as mentioned, the VIN is on the block. Even if only the last six digits I believe that can be traced to the production run. Most six pack cars were built in a certain time frame I believe and comparing the sequence number might be the only way to find out. But at the end of the day it's a 440 block so don't let anyone talk you into paying more money.