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EC Pinnacle Forged Connecting Rod for 240RX Engine
EC Billet Connecting Rod for 240RX Engine
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EC Pinnacle Forged Connecting Rod for 240RX Engine

Part Number: 8289
Online Price: $89.95
EC Pinnacle 3.54" Forged Rod for 240RX Engine Builds
Availability: In Stock.

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Description

EC Pinnacle 3.54" Forged Connecting Rod – For 240RX Engine Builds


New from EC! Our EC Pinnacle 3.54" Forged Connecting Rod is engineered specifically for high-performance 240RX engine builds using the EC 72mm forged piston and Wildcat 59mm crankshaft. This precision-forged billet aluminum rod is a critical component in transforming your Tillotson 225R/RS into a powerful 240cc stroker engine.

Designed exclusively for the EC piston’s shorter compression height, this rod optimizes rod-to-stroke ratio, piston speed, and deck height for peak performance.


Rod Compatibility

This connecting rod is:

  • Only compatible with the EC 72mm forged piston
  • Designed to pair with the 59mm Wildcat stroker crankshaft
  • Not compatible with Tillotson’s stock 72mm piston, which will result in piston pop-up and potential clearance issues

Always confirm your deck height when pairing a crankshaft, rod, and piston. Improper combinations may place the piston above or below deck, requiring machining or gasket adjustments.


Specifications:

Specification

Details

Material

Forged Billet Aluminum

Rod Length

3.54 inches

Rod Weight

154g (including bolts & bearings)

Crank Journal (Big End)

1.180" – Honda/Clone Crankpin Standard

Wrist Pin (Small End)

13mm – for Tillotson Piston Wrist Pin

Rod Bolt Torque

150 in-lbs (use torque wrench for accuracy)


Installation Guide:

For proper installation, refer to our detailed instructions here:
Pinnacle Billet Connecting Rod Guide ?


Key Benefits:

  • Precision forged for strength and reliability in high-RPM applications
  • Lightweight billet aluminum construction improves engine response
  • Purpose-built to match EC 72mm piston & 59mm crankshaft combo
  • Ideal for 240RX race engine builds pushing displacement & performance limits

FAQ

Q1: What piston and crankshaft is this rod designed for?

A: This rod is specifically made for the EC Forged 72mm Piston and the Wildcat 59mm crankshaft. Using it with other pistons—such as the stock Tillotson 72mm piston—can cause piston pop-up and deck height issues.


Q2: What block is this rod compatible with?

A: It's designed for use in Tillotson 225R/RS engines as part of a 240RX stroker setup. While it may physically fit other GX200-style clone engines, EC only guarantees compatibility with our 240RX configuration.


Q3: What is the length of the rod?

A: This forged billet rod measures 3.54 inches center-to-center, offering optimal geometry for high-RPM and stroker builds.


Q4: What wrist pin and crank journal sizes does it support?

A:

  • Crank journal (big end): 1.180" (Honda/Clone standard)
  • Wrist pin (small end): 13mm – matches the EC 72mm forged piston


Q5: What torque should I use for the rod bolts?

A: Rod bolts must be torqued to 150 in-lbs. Always use a precision torque wrench and refer to our installation guide for best practices.

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