J-series

J37A4

J37A4 SOHC VTEC V6

Displacement

3.7L (3664 cc)

Configuration

V6 60-degree

Power

305 hp (227 kW) @ 6300 rpm

Torque

370 Nm (273 lb-ft) @ 5000 rpm

Compression

11.2:1

Bore × Stroke

90.0 mm x 96.0 mm

Valvetrain

SOHC VTEC

Aspiration

Naturally aspirated

Fuel System

PGM-FI

Years

2008-2014

Factory Fitment

Honda Legend, Acura TL SH-AWD

Notes

Highest-output J37, used in the TL SH-AWD and JDM Legend; VTEC engages near 4700 rpm.

Swaps using the J37A4

Guides mentioning the J37A4

Difficult 1-2 days

Civic Type R 5-Lug Brake and Suspension Conversion for the 1996-2000 Civic (EK)

Easy 15-30 minutes

Honda PGM-FI Fault Code Reading and ECU Reset (OBD0/OBD1/OBD2)

Expert 6-10 hours (excluding paint and parts lead time)

Honda Fit (GE8) JDM 11-Pin Folding, Heated Door Mirror Retrofit

Difficult 6-10 hours

Honda Prelude (4th Gen) Projector Headlight Retrofit

Difficult 4-6 hours

Honda Fit (GE8) LED Taillight and Rear Fog Light Retrofit

Difficult 3-4 hours

Honda Fit (GE8) HomeLink and Ambient Light Retrofit Using an Acura TSX Overhead Console

Moderate 4-6 hours (plus sealant cure time)

DIY Amber City Lights in Honda Headlight Housings

Difficult 3-5 hours

Diagnosing Dead ECT, CMP and Wideband O2 Signals After a K-Series Conversion Harness Swap