H Beam 6.385" 2.200" .990" 4340 Connecting Rods Chevy BBC 454 w/ ARP 8740
Details
| Brand: | Speedmaster |
| Part Number: | 1-274-024 |
| Part Type: | Connecting Rods |
| Connecting Rod Length Center to Center (in): | 6.385 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: | 8740 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): | 2.200 in. |
| Big End Bore Diameter (in): | n/a |
| Pin End Bore Diameter (in): | 0.990 in. |
| Big End Width (in): | 0.990 in. |
| Advertised Horsepower Rating (hp): | 850 hp |
| Advertised RPM Rating: | 8,500 rpm |
| Weight Matched Set: | Yes |
| Remanufactured: | No |
| Magnafluxed: | Yes |
| Quantity: | Sold as a set of 8. |
| Tool: | Stroker Combinations |
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.
