512 block
 

Wanted a june,july,aug,1969 dated 512 original 4bolt main block. No two bolt conversions.thanks John call 9063373928 or email [email protected]

Re: 512 block
 

whats wrong with a 2 bolt conversion Johnny K. Did you try L78 Fred??

Re: 512 block
 

If you change your mind, I have a 2-bolt June dated standard bore "CE" 512 block and a set of 964 caps, bolts, and sending unit plug.
Also have that shifter nut, if you still need it.

Re: 512 block
 

Real 4 bolt blocks are different above the oil filter. You can tell factory blocks from machine shop conversions

Re: 512 block
 

2 bolts and 4 bolts are the same casting.

Re: 512 block
 

I think he is referring to the machining done above the oil filter. The 4 bolt blocks are machined for an external oil cooler. There are other machine differences as well.


Jason

Re: 512 block
 

yes you are correct the 4 bolts are way different.

Re: 512 block
 

https://www.yenko.net/ubbthreads/ubbt...4&page=all
This should explain it.

Re: 512 block
 

Easy fix for a good machinist!