Speed Pro 8-7040CH Engine Connecting Rod Bearing Set

Speed Pro 8-7040CH Rod Bearing Set

Speed Pro 8-7040CH is a competition series engine connecting rod bearing set for Oldsmobile V8 builds. It is built for 400 and 455 displacement applications and uses a steel backed, overplated bronze alloy construction for performance-focused engine work.

Key Features

• Competition Series engine connecting rod bearing set
• Fits Oldsmobile V8 engines in 400 and 455 displacement
• Standard size: Std-10
• Material: steel backed overplated bronze alloy
• Super Duty Alloy construction for performance use
• Housing bore range: 2.6243-2.6250 in.
• Standard shaft range: 2.4988-2.4998 in.
• Oil clearance range: 0.0005-0.0033 in.
• Cross-reference part numbers include 3636225 and CB8017S

Application Details

This Speed Pro 8-7040CH rod bearing set is specified for Oldsmobile V8 engines used in performance and standard fitment across classic Oldsmobile models. It fits 1965-1976 Oldsmobile 98, 1971-1976 Oldsmobile Custom Cruiser, 1970-1976 Oldsmobile Cutlass, 1966-1967 Oldsmobile Cutlass, 1975-1976 Oldsmobile Cutlass Salon, 1971-1976 Oldsmobile Cutlass Supreme, 1965-1976 Oldsmobile Delta 88, 1966-1976 Oldsmobile Toronado, and 1965-1966 Oldsmobile Starfire. For Oldsmobile 400 and 455 engine rebuilds, 8-7040CH provides the bearing dimensions and material specification needed for a precise assembly.

What It Is Used For

• Replacing worn connecting rod bearings during an Oldsmobile V8 rebuild
• Restoring proper oil clearance in 400 and 455 engine assemblies
• Addressing bearing wear, scoring, or fatigue in performance engines
• Supporting crankshaft-to-rod journal fitment in classic Oldsmobile applications
• Servicing street and competition engines that require standard-size rod bearings

Installation Notes and Tips

Verify crankshaft journal size, housing bore, and oil clearance before assembly. Confirm the engine is an Oldsmobile V8 in the 400 or 455 displacement range and match the bearing set to the correct standard-size specification. Clean all bearing surfaces thoroughly, check clearances with proper measuring tools, and follow the engine builder’s torque and lubrication procedures during installation.

Quality Assurance

Speed Pro positions this component for performance engine use with a steel backed overplated bronze alloy design and Super Duty Alloy material selection. The part number 8-7040CH is engineered for Oldsmobile V8 applications where consistent bearing fit and rebuild accuracy matter.