512 block 1970 cast date never decked

joey · #1 03-15-2007, 05:19 PM

512 block 1970 cast date never decked looks to be in excellent conditiom first $2500

**Rixls6** · #2 03-15-2007, 06:19 PM

What's the exact casting date?
2-bolt or 4-bolt main?
Stamped assembly numbers?
Pics?

joey · #3 03-16-2007, 06:54 PM

I took the block yesterday to chave it cleaned and maged so You know it will be a good block here are pics casting date f 20 70

[image]

joey · #4 03-20-2007, 09:47 PM

block has been sold thanks

**Rixls6** · #5 03-21-2007, 03:50 AM

Joey,
Is this your block on Ebay. Sure looks like the same one, but not sold.

http://cgi.ebay.com/ebaymotors/ws/eBayIS...p;rd=1&rd=1

**Rainer** · #6 03-21-2007, 05:52 AM

Looks like it was an LS5 block from a 71 Vette.

joey · #7 03-21-2007, 06:35 AM

yes and it is sold just waiting on deposit to end auction

**427king** · #8 03-21-2007, 06:43 AM

[ QUOTE ]
Looks like it was an LS5 block from a 71 Vette.

[/ QUOTE ] Ls5 block would have been a two bolt main.

joey · #9 03-21-2007, 07:38 AM

3963512 1969-71 427 335, 390, 400, 425 COPO, 430, 435,
454 345, 360, 365, 390, 425, 450 2&4 bolt
just as some 350 s got 4 bolts instead of 2 I guess this block also has the large oil line holes and I dont think it would have been tampered with its been in a barn for 25 years and the old man I bought it and the car off of didnt know anything about engines

**Rainer** · #10 03-21-2007, 07:54 AM

[ QUOTE ]
[ QUOTE ]
Looks like it was an LS5 block from a 71 Vette.

[/ QUOTE ] Ls5 block would have been a two bolt main.

[/ QUOTE ]

Yes, I agree, so there is some discrepancy here. According to Colvin's By The Numbers, the CPH suffix code is 71 LS5 only. There is no listing for that code used on an LS6 engine.

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