L88 heads

[Edward B.]

Re: L88 heads

Well how 'bout that. I went out and looked again, and sure enough, I also have HC on my heads (or at least the one I can easily see). Not in the same place as yours, but it's there.

There's also a N (or a Z depending on how you look at it) on one head and a W (or M depending on how you look at it) on the other.

Ed

[Wayne M.]

Re: L88 heads

Well how 'bout that. I went out and looked again, and sure enough, I also have HC on my heads (or at least the one I can easily see). Not in the same place as yours, but it's there.

There's also a N (or a Z depending on how you look at it) on one head and a W (or M depending on how you look at it) on the other.

Ed

The H_C is on all 4 ends of my 842 set. Also, I have a heavy "B" stamped about where you show your N (?); again, one end of each head.

But there's a bunch more on the underside (on coolant runners). Stamped G P, Z, and 4 (on one), and same, but number 6 or 9 [ie. no 4] on the other.

I also have a "L" stamped on one head, near the interface with the iron block, about directly under the temp sender boss. However, I realize that this just might have been some mechanic's way of identifying what side they came off / should go back on.

Roger Gibson had an interesting article in the Summer 1991 RESTORER, on the subject of BB aluminum heads ( the 392's, 842's and the 6074's). He writes "... the heads installed on production engines have several numbers and letters stamped in the end (photo #6). this is done when they pass certain tests or inspections, such as water test and magnafluxing"