D0VE-A block

medbali76 wrote:What is the maximum safe overbore for these CJ blocks?

I had a CJ block bored to 4.470, sold it to my buddy, still going strong after hundreds of runs. It is Hard Bloked up to the water pump holes. It makes a good 700-750 HP

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I removed all the pistons and found couple of damages in one cylinder. That is why I asked for the overbore. Looks like I have to go more than 0.030". I Hope not but possible.
I got the Marti report also. This motor was a C code 429CJ 4V non ram air with a 4 speed close ratio toploader in a 71 Torino 500 2door sportsroof.

The report should help you sell it. collectors always seem to be interested in the history of stuff. Post up a few pictures of the damage.

dfree383 wrote:The report should help you sell it. collectors always seem to be interested in the history of stuff. Post up a few pictures of the damage.

Here it is
https://picasaweb.google.com/112656570976060097191/CylinderDamage

Honestly that won't affect the performance of that block one bit, but it will affect the value, as most don't know any better.

medbali76 wrote:I removed all the pistons and found couple of damages in one cylinder. That is why I asked for the overbore. Looks like I have to go more than 0.030". I Hope not but possible.
I got the Marti report also. This motor was a C code 429CJ 4V non ram air with a 4 speed close ratio toploader in a 71 Torino 500 2door sportsroof.

c code cyclone or c code mustang?

BOSS 429 wrote:

medbali76 wrote:I removed all the pistons and found couple of damages in one cylinder. That is why I asked for the overbore. Looks like I have to go more than 0.030". I Hope not but possible.
I got the Marti report also. This motor was a C code 429CJ 4V non ram air with a 4 speed close ratio toploader in a 71 Torino 500 2door sportsroof.

c code cyclone or c code mustang?

C code Torino.