Casting date readout ?
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,330
Likes: 13
From: Europe , Luxembourg
Casting date readout ?
Hello
Are this the correct casting date coding for 1967 casted block ?
The first row vertically shows the date with the oil pan on the bottom
The 2nd row with the oil pan on top. It appeares that the date code is casted upsidedown, when the engine is sitting correct with the pan on the bottom.
Looks like L ?? 7
The number(s) in between the L and 7 could be 6 ? or 8 ?.
The 7 should stand alone for 1967, so what is behind de 6 or 8 ?
Thanks. Gunther
Are this the correct casting date coding for 1967 casted block ?
The first row vertically shows the date with the oil pan on the bottom
The 2nd row with the oil pan on top. It appeares that the date code is casted upsidedown, when the engine is sitting correct with the pan on the bottom.
Looks like L ?? 7
The number(s) in between the L and 7 could be 6 ? or 8 ?.
The 7 should stand alone for 1967, so what is behind de 6 or 8 ?
Thanks. Gunther
Last edited by WESCH; Oct 24, 2004 at 06:57 PM.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,923
From: Washington Michigan
Big-blocks were cast at Tonawanda, which used two digits for the year in the casting date, so the last two digits are "67"; The "L" is December, and the digit(s) inbetween the "L" and the "67" are the day in December. 
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,330
Likes: 13
From: Europe , Luxembourg
Hello
2 digits for the year ? Are you sure ?
Most of the 67 casted BB I saw have only 1 ( one ) number , hence 7 .
Also see the MORTEC.COM side.
I am confused.
Gunther
2 digits for the year ? Are you sure ?
Most of the 67 casted BB I saw have only 1 ( one ) number , hence 7 .
Also see the MORTEC.COM side.
I am confused.
Gunther
Heel & Toe
Joined: Oct 2004
Posts: 24
Likes: 0
Casting Date
What are the block casting #'s on the rear flange. The last number of the year was used in the Tonawanda engine plant not the last 2. That's why i'm asking for the flange #'s, this block is for a 68 model year corvette, Casted in Dec 8, 1967 if the 1st character is actually an L.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,923
From: Washington Michigan
Originally Posted by Donald Wilson
What are the block casting #'s on the rear flange. The last number of the year was used in the Tonawanda engine plant not the last 2. That's why i'm asking for the flange #'s, this block is for a 68 model year corvette, Casted in Dec 8, 1967 if the 1st character is actually an L.
