Its common to install brass bushings into the bores after you correct the lifter bore centers with the BHJ fixture. So you have the option of make it accept any lifter size that you want to. The purpose is to provide a commonly available inexpensive roller lifter to help offset the added expense in other areas of the roller setup! Where would you find an application specific roller lifter for a 235/261? Isky can make a set for a Flathead Ford for $600,the Stovebolts and GMC's would fall into that same price category as well. A SBC is 1/2 that much or less! You can find them used all day on Ebay for $100-$150 bucks. You cant even find Stovebolt ones at all. So it definately provides a new venue for them to explore, and hopefully raise the HP potential for them....



Class III CNC Machinist/Programmer