4919842 big block aluminum heads...

[Anchloken]

Got a set of these... can’t find anything on it... date code is 67 and has the W snowflake emblems.... also got a 3919842 heads dated 5.21.69.... anyone know what the 4919842 heads are from?

[KurtS]

Heads in 67 started with a 3, so I'm doubting the 4 is correct (though it may be factory). Got a pic of the #?

[Anchloken]

Yes i have a pic of the casting number and date code... these came off my 67 L-71 corvette

[Anchloken]

Could it have been a real early casting? Date on the head is 5.21.67

[KurtS]

Can you post the picture?

[Anchloken]

Can i email? Having issues with the attachments

[bertfam]

Send the picture to me and I'll post it. My email address is in my signature below.

Ed

[Anchloken]

Done... thank you

[bertfam]

Ok, they're dated May 21st, 1967, very early,  so I'm guessing a factory mistake.

I'll pass this along to Alan Colvin and see if he can make any sense of this.

Ed

[Anchloken]

In the last pic, the most forward head in the picture is the 3919842 head, the 4919842 is the one in the rear

[bertfam]

In the last pic, the most forward head in the picture is the 3919842 head, the 4919842 is the one in the rear

Is the temp sender boss drilled on the 4919842, and what's the build date on your L71?

Ed

[Anchloken]

My 67 was a late June build...

[bertfam]

Well, considering they only made 16 L71's with the L89 aluminum heads, I'd say it's going to be difficult at best to verify, but have you checked with the NCRS folks? Again, I believe it's just a mistake made at Winters, but we may never know.

Ed

[Anchloken]

I got the tank sticker for it and it’s a L71 nothing more... i put back the original heads but these were on it when i got it so i know it’s not original to the car at least... thanks for all your help... I’m just stumped on the “4”

[KurtS]

It's just a casting error when someone made up the number.