Purpose-Built Connecting Rod for Wildcat 240RX High-Performance Engine Builds
The EC Pinnacle 3.600" Forged Connecting Rod is a purpose-built performance connecting rod designed specifically for Wildcat 240RS and 240RX racing engine builds using the EC 72mm Forged Piston (WC-200) and Wildcat 59mm crankshaft.
Designed around the unique combination of the Wildcat 240 block, 59mm stroke crankshaft, and EC 72mm forged piston, the 3.600" rod provides the correct piston position and geometry required for this high-performance engine combination.
This is not simply a longer version of a standard Honda Clone connecting rod. The EC Pinnacle rod is specifically engineered around the shorter compression height of the EC 72mm forged piston, allowing the piston, rod, and 59mm crankshaft to work together properly in the taller-deck Wildcat 240 block.
The result is a purpose-built rotating assembly designed for high-RPM kart racing, maximum-performance Wildcat 240 engines, and full-race 240RX builds.
Designed for the Wildcat 240 Stroker Combination
The EC Pinnacle 3.600" rod is specifically designed to be used with:
This combination creates the intended piston position and deck-height relationship for the Wildcat 240 platform.
Important Compatibility Warning
This connecting rod is designed exclusively for the EC 72mm forged piston (WC-200).
It is not compatible with the standard Tillotson 72mm piston. The Tillotson piston has a different compression height, and using it with this 3.600" rod can result in excessive piston pop-up and potentially cause piston-to-head or other clearance problems.
Do not substitute another 72mm piston without verifying compression height, deck height, and all required clearances.
3.600" Connecting Rod for Wildcat 59mm Crankshaft
The 3.600" rod length is specifically selected for the Wildcat 240 engine's 59mm stroke crankshaft and taller-deck block.
The rod length, crankshaft stroke, and piston compression height must all be considered together when building a performance engine.
Changing any one of these components can alter:
Always verify deck height and piston clearance during final assembly.
Billet Aluminum Construction
The EC Pinnacle rod is manufactured from billet aluminum to provide a lightweight, high-strength connecting rod designed for demanding high-RPM racing applications.
At approximately 155 grams including bolts and bearings, the lightweight construction helps reduce rotating and reciprocating mass while maintaining the strength required for performance Wildcat 240 engines.
A lighter reciprocating assembly can contribute to improved engine response and acceleration, making this rod well suited for competitive racing applications.
EC Pinnacle 3.600" Rod Specifications
Specification | Details |
Application | Wildcat 240RS / 240RX |
Rod Length | 3.600" |
Material | Forged Billet Aluminum |
Rod Weight | 155g including bolts & bearings |
Big End / Crank Journal | 1.180" Honda/Clone crankpin standard |
Small End / Wrist Pin | 13mm |
Compatible Piston | EC WC-200 72mm Forged Piston |
Compatible Crankshaft | Wildcat 59mm Crankshaft |
Rod Bolt Torque | 150 in-lbs |
Wildcat 240 Engine Compatibility
The EC Pinnacle 3.600" connecting rod is designed specifically for the Wildcat 240 platform.
It is ideal for:
Not a Universal Clone Connecting Rod
Although the big-end crankpin is based on the 1.180" Honda/Clone crankpin standard, this rod is not a universal replacement connecting rod for Honda GX200, Predator, Tillotson, or other Clone engines.
Its length and geometry are specifically matched to the Wildcat 240 block, Wildcat 59mm crankshaft, and EC 72mm forged piston.
Why Rod Length Matters
Connecting rod length plays an important role in the geometry and operating characteristics of a racing engine.
The EC Pinnacle 3.600" rod is designed to provide the appropriate relationship between the:
59mm stroke + 3.600" rod + EC 72mm forged piston + Wildcat 240 deck height
This combination determines the final piston position within the cylinder and affects the engine's overall geometry.
Because the EC 72mm piston has a shorter compression height than the standard Tillotson piston, using the correct rod is critical to achieving the intended deck height.
Critical Assembly & Deck Height Warning
When assembling a Wildcat 240 engine, always measure the actual piston deck height rather than assuming a particular rod, piston, or crankshaft combination will produce the desired result.
Changing the piston, connecting rod, crankshaft, block, or head gasket thickness can change the final deck height.
Before final assembly, verify:
Proper engine building practices and clearance checks are required for reliable high-RPM operation.
Rod Bolt Torque
Recommended Rod Bolt Torque: 150 in-lbs
Use a calibrated torque wrench when tightening the connecting rod bolts.
Follow the manufacturer's assembly procedure and verify that the rod bolts are properly lubricated or installed according to the specified assembly requirements before applying the torque specification.
Ideal for Wildcat 240 Race Engines
The EC Pinnacle 3.600" forged connecting rod is designed for builders looking to maximize the performance potential of the Wildcat 240 platform.
It is an ideal component for:
Key Features