543 0R 505
I hope that block holds up for you @oldkimmer and before I decided to go with the Bill Mitchell Products aluminum RB block, my local builder and others, as well as my "common logic" and an explanation from the manufacturer, THIS cap and girdle set was unique and the best option to reinforce a factory block. You may want to give it consideration. As the description says, it has a unique mounting/installation and between that and the materials used, well...I was "sold" on it as were others:
Caps and Girdle System
I'm going to use TrickFlow 270s on my 541. Even though it will accept a 4.50 stroke without internal clearancing, I prefer the lower piston speeds of a 541 to a 572 and that's based on a chart in AndyF's book "How to Build Max Performance Mopar Big Blocks" I'm also feeding it with the 6bbl setup with Promax mods and an Indy ModMan intake.
I'm very late to this thread, but although I had questions about what stroke to use, it's for different reasons.
I hope that block holds up for you @oldkimmer and before I decided to go with the Bill Mitchell Products aluminum RB block, my local builder and others, as well as my "common logic" and an explanation from the manufacturer, THIS cap and girdle set was unique and the best option to reinforce a factory block. You may want to give it consideration. As the description says, it has a unique mounting/installation and between that and the materials used, well...I was "sold" on it as were others:
Caps and Girdle System
I'm going to use TrickFlow 270s on my 541. Even though it will accept a 4.50 stroke without internal clearancing, I prefer the lower piston speeds of a 541 to a 572 and that's based on a chart in AndyF's book "How to Build Max Performance Mopar Big Blocks" I'm also feeding it with the 6bbl setup with Promax mods and an Indy ModMan intake.