Technologies connecting rods are quality built from billet 4340 steel for
superior strength in high horsepower applications. K1 has also called upon the
experts at ARP fasteners to design special K1 proprietary rod bolts with
asymmetrical threads to equally load each thread when under pressure.
are shot peened for improved fatigue life and are finished in the USA using
only state of the art Sunnen hones. K1 rod housing bore tolerances of +/-
.000050in (50 millionths) match some of the tightest accepted tolerances in the
industry. All K1 rod sets are weight-matched to +/- 1 gram and boxed with the
individual rotating, reciprocating, and total weights conveniently noted for
balancing. A special wrist pin bushing material is also used with these assemblies
offering optimal friction reduction.