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Cadillac 4.6L LH2 Northstar Street Rod Crate Engine

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Specs
Camshaft Type:
Hydraulic Roller Tappet
Engine Displacement:
4.6
Horsepower:
320
Torque:
315
Cylinder Head Material:
Aluminum
Crate Engine Type:
Turn-Key Crate Engine
Maximum RPM:
6500
Cadillac 4.6L LH2 Northstar Street Rod Crate EngineCadillac 4.6L LH2 Northstar Street Rod Crate EngineCadillac 4.6L LH2 Northstar Street Rod Crate EngineCadillac 4.6L LH2 Northstar Street Rod Crate EngineCadillac 4.6L LH2 Northstar Street Rod Crate EngineCadillac 4.6L LH2 Northstar Street Rod Crate Engine
Cadillac 4.6L LH2 Northstar Street Rod Crate Engine

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Cadillac 4.6L LH2 Northstar Street Rod Crate Engine

Details

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Q & A

What's in the Box

This Northstar engine was designed originally for transverse front-wheel drive applications. It was modified substantially in 2004 for longitudinal rear- and all-wheel drive use in the STS, SRX, and XLR, as well as receiving continuously variable valve timing on both intake and exhaust sides. The RWD (LH2) Northstar produces 320 hp (239 kW) and 315 lb•ft (427 N•m). An increased compression ratio of 10.5:1 enables most of the increase in power from the L37 and LD8 Northstars.

2004–2009    Cadillac XLR
320 hp (239 kW) @ 6400 rpm    310 lb•ft (420 N•m) @ 4400 rpm

Application

  • Production 2006 Cadillac XLR  RWD  LH2  4.6 VIN Code Y  V-8 
  • Broadcast Code JBA
  • 12577431  Production #
  • 89017549 replaced by 19178925  Goodwrench #  2004 - 2009