THESE CONNECTING RODS ARE C.N.C.  MACHINED FROM 4340 AIRCRAFT QUALITY VACUUM DEGASSED MATERIAL.  THEY ARE HEAT-TREATED TO 36 ROCKWELL "C" AND DOUBLE SHOT PEENED. 

THE BUSHINGS ARE MADE OF "AMPCO 18" ALUMINUM BRONZE AND WILL ACCOMMODATE PIN DIAMETERS FROM .990 (BIG BLOCK CHEVY) TO 1.000.  A.R.P. 190,000 P.S.I. BOLTS AND NUTS ARE STANDARD. 

THIS NEW CONNECTING ROD IS ONLY SLIGHTLY HEAVIER THAN YOUR STOCK ROD AND IS SIGNIFICANTLY LIGHTER THAN ANY OTHER AFTERMARKET ROD CURRENTLY AVAILABLE.