Strange 318 Block

I used to get motors like these from Rod Hall racing In Sparks NV back in the day. They were different than regular 318 blocks, they had thicker cylinder walls. you might want to double check the sleeves, the ones I was getting could be bored out to 4.04 or greater. They also worked with a lot of aar and nascar stuff, also remember the T/A's and AAR had those cubic inch restrictions on them in race trim so the AAR and T/A were actually 303.8 CI.

Petty Enterprises used to get a lot of limited production or race only stuff that seemed to find its way into the Hall's racing shop..