Join Date: Feb 2003
Location: Kansas City, MO
Re: BBC 6.135" rods that won't break the bank?
Brian, GM offered 3 different rods, the std rod in 396, 427, etc lower HP applications, the "dimple" rods used in the HP applications. and then there are the "thumb" rods which were used in their larger trucks. They were called "thumb" rods because the recessed area around the big end is about the width of your thumb and had more meat around the rod bolts. For a budget build the "thumb" rods with ARP bolts are a good alternative to the more expensive "dimple" rods.
Stock vs thumb rod
Article the image came from
Chevrolet 396 Big Block - Super Chevy Magazine
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