Nitto SR20 I-Beam Connecting Rods - Nissan SR20 Engine Series

Nissan SR20 Engine Series

Bearing Spec 
SR20 GTI-R (wider bearing)
ACL Race Series P/N: 4B2976H (Std)

The whole Nitto 4340 connecting rod range is produced from the highest quality double melted forged billet material. 

Double melted 4340 is a significant feature when compared to other aftermarket offerings which are typically only single melted. The extra melting process removes material impurities, ensuring the 4340 material our rods are made from are of the highest standard. 

The forging of the billet also ensures a tight and uniform relationship between material grains, enhancing the strength of the one piece forging, unlike the commonly used two piece designs in the lower end of the market.

Features of our connecting rods:

Grade Tested (X-Ray & Sonic) 4340 Billet Steel ONE Piece Forging
Quenched and Heat Treated
Shot Peen Hardness Treated (38HRC)
Doweled Cap for Superior Alignment
Quality ARP 2000 Series Bolts
Optional ARP Custom Age 625 Plus Series Bolts
Silicone Bronze Pin End Bushes
Balanced to Within a +/- 1 Gram Tolerance Per Set
Bore Diameters to Within +/- 0.0001" Tolerance
Sunnen Honing Machines Along with Sunnen Diamond Honing Tooling are used for both Big & Pin End Machining and Sizing
100% CNC Profiled
100% CNC Drilled & Tapped