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Speedmaster®
H Beam 6.123" 2.125" .984" 4340 Connecting Rods Chrysler 318 340 360 w/ ARP 2000
Overview
Specs
| Brand: | Speedmaster |
| Part Number: | 1-274-039 |
| Part Type: | Connecting Rods |
| Connecting Rod Length Center to Center (in): | 6.123 in. |
| Connecting Rod Beam Style: | H-beam |
| Connecting Rod Material: | Forged 4340 steel |
| Connecting Rod Finish: | Shot-peened |
| Wrist Pin Style: | Floating |
| Clearanced for Stroker: | No |
| Cap Retention Style: | Cap screw |
| Connecting Rod Bolt Brand: | ARP |
| Connecting Rod Bolt Diameter: | 7/16 in. |
| Connecting Rod Bolt Material: | 2000 chromoly steel |
| Fastener Yield Strength (psi): | 200,000 psi |
| Connecting Rod Bolt Head Style: | 12-point |
| Approximate Connecting Rod Weight (g): | n/a |
| Rod Journal Diameter (in): | 2.125 in. |
| Big End Bore Diameter (in): | n/a |
| Pin End Bore Diameter (in): | 0.984 in. |
| Big End Width (in): | 0.927 in. |
| Advertised Horsepower Rating (hp): | 700 hp |
| Advertised RPM Rating: | 7,500 rpm |
| Weight Matched Set: | Yes |
| Remanufactured: | No |
| Magnafluxed: | Yes |
| Quantity: | Sold as a set of 8. |
| Tool: | Stroker Combinations |
Description
Speedmaster H-beam connecting rods are manufactured from aircraft quality 4340 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.
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.
Brand Information
In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.