Speedmaster 4340 Forged Steel I-Beam Connecting Rods
Speedmaster I-beam connecting rods incorporate all of the best features possible for an I-beam rod, including some strength adders found in H-beam designs. Speedmaster I-beam connecting rods are profiled with clearance for long stroke applications. These rods feature a one-rib cap design for added strength and bearing support, polished beams to eliminate stress risers.
These rods are manufactured from aircraft 4340 chromoly steel and designed to be the most reliable in the racing industry. They are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved. Perfect for engines producing 1000+ HP.
ARP connecting rod bolts are precision CNC machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior to standard OEM fasteners in terms of durability, and fully capable of handling the extra stress of high combustion engines.
Part Type: Connecting Rods
Application: Chevrolet Big Block
Connecting Rod Beam Style: I-Beam
Material: 4340 Forged Steel
Rod Length: 6.385"
Connecting Rod Finish: Shot-Peened
Connecting Rod Journal: 2.200"
Pin Bore Diameter: .990"
Big End Width: .900"
Pin Fit: Floating
Weight Matched Set: Yes
Stroker Clearanced: Yes
Fastener Type: Cap Screw
Fasteners: 7/16" ARP 2000
Fastener Head Style: 12-Point
Fastener Yield Strength: 220,000 psi
Manufacturer's Part Number: 1-274-036
Quantity: Sold in Sets of 8