2006 2007 2008 Honda Ridgeline 3.5L V6 SOHC VTEC Engine JDM J35A J35A9

Feature	Details
Engine Code	J35A9 (JDM J35A Equivalent)
Displacement	3.5 Liters (3,471 cc)
Configuration	60° V6 Aluminum Block & Heads
Valvetrain	SOHC 24-Valve VTEC
Horsepower	253–265 hp @ 5,800 rpm
Torque	250 lb-ft @ 3,500 rpm
Compression Ratio	10.0:1
Fuel System	Multi-Point Fuel Injection (MPFI)

Vehicle Fitments

This JDM J35A long block is designed for the following North American (USDM) models:

• 2006-2008 Honda Ridgeline (RT, RTS, RTL, RTX)

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Installation & Technical Notes

The Ridgeline’s J35A is a "workhorse" engine, but a successful JDM swap requires transferring specific USDM components to satisfy the North American ECU and emissions systems:

• Long Block Conversion: This sale includes the engine block, cylinder heads, and internal rotating assembly. You must transfer your original USDM intake manifold, exhaust manifolds, wiring harness, and all sensors (Crank, Cam, and Knock) to ensure 100% plug-and-play compatibility.

• Oil Pan & Pickup: Inspect your original USDM oil pan. Some Ridgeline models utilize a specific pan for 4WD clearance; if the JDM unit differs, simply swap your original pan and pickup tube.

• Power Steering & Accessories: Retain your original Ridgeline accessory brackets and power steering pump to ensure proper belt alignment and hose clearance in the engine bay.

• Essential Maintenance: We strongly recommend replacing the following parts during the swap:

  • Timing Belt Kit: Replace the belt, water pump, and hydraulic tensioner (Interference Engine).

  • Spark Plugs: NGK Laser Iridium (IZFR5K11).

  • Rear Main Seal: Significantly easier to replace while the engine is out.

  • Thermostat: Install a new OEM-spec thermostat to prevent cooling issues.

• Valve Adjustment: While the engine is on the stand, we recommend checking and adjusting the valve lash to factory specs for optimal idle quality and performance.