[Zimtok]

I've read that the 421,428,455 all have a transfer lug located by the distributor hole.
What is the transfer lug?
I have looked at my 1972 455 and compared it to my 1970 350 and can not see any difference, other then the casting numbers.

Am I missing something?

[Zimtok]

I've read that the 421,428,455 all have a transfer lug located by the distributor hole.
What is the transfer lug?
I have looked at my 1972 455 and compared it to my 1970 350 and can not see any difference, other then the casting numbers.

Am I missing something?

[eskimonj]

It looks like a little pyramid on the passenger side of block near the distributor. I don't think it has any function, but it is definately noticeable.

[tom s]

350s also have them,it is used to tell the guys on the assm. line that it is other than the std.389-400 block

[Zimtok]

I thought that was what they were refering to, but if it was to indicate a not standard block, does this mean that my 350 is special in some way?

And what would be special about a block that had this lug?

[tom s]

I would guess the 389-400 were the STD. for most cars and everthing else was a exception?

[Andre]

I know what the transfer lug is, and what it indicates, but why is it called that?
Was it just for identification, or was it used for other purposes during manufacturing?

[Tripower455]

The way I understand it, it was used to ID the block so that it was transferred to a differnt line for machining. It was likely used on the assembly line as well.