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Old 04-17-2009, 06:32 PM
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Wierd casting/machined numbers on head.

I found a set of sbc heads at a local junk yard that look like pretty standard lightweight castings, either 624 or 882 would be my guess. They're on a one-piece seal 350 block in an 86 suburban. Intake is missing, but exhaust manifolds are still there.

Here's the weird part. On the machined surface for the accessory holes at the end of one of the heads are some cast or machined lettering. It's not stamped and doesn't make any other sense to me. I asked if I could pull the valve covers, but the JY owner said only if I bought them. I don't really need another set of leaky valve covers, so I passed at that time.

I can't find the paper I wrote the text on, but it was something like G380 450 . It was in about 3/8" tall block letters. The marks on the end of both heads looked like the 882/624 right-angle casting marks.

Anyone seen anything like this before? If I get back out there tomorrow, I'll probably buy me a new set of valve-covers, just to find out what they really are.

Matt

Picture below shows where lettering is.
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Old 04-17-2009, 07:15 PM
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Both heads are junk castings. Usually machine shops stamp these on the end of heads so they can keep up with what customer owns them.
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Old 04-17-2009, 07:59 PM
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Old 04-18-2009, 02:37 PM
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I think I'd find another junk yard. That guy is an idiot. Like DV said, I'd pass on those heads, especially if they're 624s.
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Old 04-18-2009, 03:36 PM
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Quote:
Originally Posted by MI2600
I think I'd find another junk yard. That guy is an idiot. Like DV said, I'd pass on those heads, especially if they're 624s.
This has turned into more of a curiosity thing than a 'gotta have the heads' thing. I've got a set of 487s (no 'X' ) that I'm going to be using initially. The lettering isn't stamped in as there's no raised area around the lettering like you see with regular stamps. The lettering looks either machined or cast. Maybe someone etched them with a frickin' shark with a frickin' laser beam on it's head.

I'm not sure that they're 624s or 882s. The marking on the ends of the heads look like it, but I don't think they were scalloped on the exhaust side like those are. I talked to the guy on the phone and the reason he doesn't want the valvetrain parts disappearing. He said that if I seal it back up when I'm done, I can pull the valve covers if I make sure that I seal them back up. Hey, maybe there'll be a set of roller rockers under there! (Ya know, 'With this much crap, there's gotta be a pony here somewhere!' )

I found a set of 67cc S/R torquers a year or so ago at a different JY, but by the time I figured out what they were, they were gone. They went for $40 as a set of cores. I just don't want something like that happening again.

Matt.
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