K1 Technologies Mazdaspeed H-Beam Billet Connecting Rods w/ARP 2000 Rod Bolt Kit - Set of 4

Billet 4340 Steel H-Beam Design

Designed by in-house engineering team for high-stress racing applications

All rods are finished in the USA and held to very tight tolerances. Bores finished to +/- .0001" and weight to +/- 1 gram per end.

Shot peened for improved fatigue life

Premium bronze wrist pin bushings

High Quality ARP 2000 Fasteners included

Notice:  Product Images may differ from the actual product.  Image may be a representation of this item.

Bolt Diameter 3/8

Bolt Part Number BT61601-2

Center To Center Length 150.50

Connecting Rod Finish Shot-peened

Engine DISI

Lightened No

Main Bearing Bore Diameter 55.008

Main Bearing Width 21.79

Make MAZDA

Material Forged 4340 Steel

Mounting Hardware Included Yes

Pin End Bore 22.50

Rod Quantity Sold as a set of 4

Rod Type H-Beam

Weight Matched Set Yes

Wrist Pin Journal Bushing Width 21.79

Wrist Pin Style Floating

K1 Technologies connecting rods are manufactured with optimized strength and weight characteristics in mind to deliver reliable performance. Forged from 4340 steel, K1 rods featured a shot-peened surface finish which smooths surface blends and reduces potential stress profiles. K1 connecting rods are held to strict quality standards and undergo magnetic particle testing to ensure material properties are free of flaws. Each rod is also subject to bore tolerance compliance, holding them to +/- .0001” after finishing. Additionally, K1 rods are balanced and tested to be within +/- 1 gram per end. A dual-ribbing design on the rod caps of K1 connecting rods helps maximize strength and allows the rod big end to maintain roundness as engine RPMs increase. Full-floating, precision-honed bronze bushings are fixed into the small ends of the rods for low friction and high wear resistance. Fitted with ARP 2000 rod bolts rated at 200,000 psi tensile strength for most applications, K1 connecting rods deliver an industry-leading combination of strength and value.

VIP Motorsport is an official Dealer of K1 Technologies in the UK. Our stock is directly linked with K1 USA, if the item is out of stock with us it could take up to two working weeks to arrive with you.