Products to Compare (max of 3)
X
Compare These Parts
America's Oldest Speed Shop ® Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Help Center
Help Center

U.S.Order Line:

800.979.0122

(CST) 7am - 10pm

Race and Rod Tech Support

Mon-Fri 8am - 5pm

Canadian Order Line:

855.313.9180

International Order Line:

1.402.323.3200
Since 1952
Menu
Shop By
Support
Account

Cadillac 4.6L LH2 Northstar Street Rod Crate Engine

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

Click image to enlarge

Details

Reviews (0)

Q & A (24)

What's in the Box

Info

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.

This engine is being offered to be installed in a street rod or 'non' Cadillac application.  Speedway Motors makes no guarantee of fit or application if it is intended to be installed into an o/e make/model Cadillac application.

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

Application

  • Street rod or 'non' Cadillac 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
  • Speedway Motors makes not guarantee of fit or application if it is intended to be installed into an o/e make/model Cadillac application

 

Suggestions