The material is a proprietary material made specifically for Carrillo called CarrilloLoy. It is similar to 300M and 4340. The shot peen is a proprietary blend made for super fine shot peen finish. The bushing material is called ToughMet. It is more slippery, elongates less, and is tougher than any material short of composites. The rods are comparable in weight to the Lightning rod but have 38% more surface area.
Terry at Shaker Products say´s "As far as strength data I can say that we used 4800 psi cylinder pressure as a standard threshold. 4500 psi in a top fuel car's cylinder. I have had a new Nitro bike owner break his crank pin on a backfire and the Shaker Rod still is straight in the beam".
Center to Center 8.0"
Pin Diameter honed for.927"
Big End bore for 1.5" crank pin using standard big twin rollers
rod width on small end 1.060"