Can anyone decipher these head casting numbers?

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Apr 30, 2002 | 10:41 PM

MDL-01C5

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Launching!

Joined: Dec 2001

Posts: 231

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From: Wilmington, NC

Can anyone decipher these head casting numbers?

I bought these on Ebay, and noticed they're a tiny bit different than the ones I've seen before...( not the port design, but the casting spots (no, NOT flash)seem a little different...
HEAD 1:
Looking at the exhaust port side of the heads:
Top Left=0007209511629855
Top Right=0072K5332856
Bottom, below 3rd ex. port=6 82 2 04 41 C (0?)3 0
Looking down on valvetrain, ex. valves towards you:
Bottom left corner=853
HEAD 2:
Same 853 as above,
Top Left=9928112570729855
Top Right=9282U2780856
I've looked up "LS! casting #'s on Google, but all the numbers that come up are different than the ones on these...
I know they're 5.7's, since they both have "5.7" in the casting...
Thanks <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

Apr 30, 2002 | 11:16 PM

MyLS1Hauls

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From: Michigan

Re: Can anyone decipher these head casting numbers?

They are 853s. Used from 99-mid 00. In mid 00, they switch suppliers and also changed the casting numbers. They are all interchangable, and no performance differences. I think the other number is 241.

Brad

Apr 30, 2002 | 11:21 PM

MDL-01C5

Thread Starter

Launching!

Joined: Dec 2001

Posts: 231

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From: Wilmington, NC

Re: Can anyone decipher these head casting numbers?

Thank you for the quick reply <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
So just to be sure, I am fine to P&P these for a 2001, right?