jlagarde

my 66 427 390 has the correct cast number on left rear but on right rearis "hi perf" cast but no cast date that I can see. Any idea of what I'm looking at? Thanks

rongold

Someone correct me if I'm wrong, but isn't the casting date on a 427 on the side of the block near the starter ???

RON

jrm5657

that is correct.

jlagarde

Thanks. I guess I missed that in my manuals. :o

provette67

passenger side between the water jackets

knight37128

Only on the early one.

jlagarde

knight, it was built december 65. i never knew what was considered the cut off for "early". if it's not "early" where else could i find the cast date if not on the right rear opposit the cast number?

also, since "early" is mentioned in regard to the indented passenger side valve cover ( i have factory a/c) knowing the "early" cut off date would help me there as well.

Thanks for all of your help.

knight37128

The air conditioning "dimple" ran from early (November 1965) to mid ( January 1966).

Of course it was not needed and then deleted.

At least that what the Judging Manual states. (Fourth Edition)

Corbrastang

I have an April car and it has the dimple in the passenger valve cover.

Corbrastang

I meant that it is original to the car-confirmed with the original owner.

wombvette

One the side of the block through 67.

knight37128

Just passing along the information in the Judging Manual.

I have a 1968 block with the date on the side (by the starter) of the block.

wombvette

[QUOTE=

I have a 1968 block with the date on the side (by the starter) of the block. [/QUOTE]

Yes, it carried on into 68 with the 427s, but after 67, who cares?