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Cadillac 4.6L LH2 Northstar Street Rod Crate Engine

SAME DAY SHIPPING! Order within the next 3 hours 13 minutes and receive same day shipping

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 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

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.

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

 

Customer Reviews

This product has no reviews.

Product Q&A

18 questions : 18 answers

1 answers

I was wonder if this engine would fit my 67 cadillac deville 429 in it In wat would I have to do to make it fit

joechacon
Dalton, GA, USA
March 18, 2015

I was wonder if this engine would fit my 67 cadillac deville 429 in it In wat would I have to do to make it fit

Answers

March 18, 2015
EricM
You would be taking about a complete engine and transmission swap in order to install this engine. That type of project is suggested for a seasoned professional and not the back yard mechanic type.
1 answers

is there a recomended trans. for the northstar that you offer or?

dougr
Elk Grove, CA, USA
February 07, 2015

is there a recomended trans. for the northstar that you offer or?

Answers

February 09, 2015
EricM
We apologize but other than the original rear wheel drive Cadilac transmission there is not a recommended transmission suggested for use. There are companies that are currently offering adapter plates and special torque converters to allow use of the 700R, 4L60, and 4L60E transmissions. Bentsen’s and TD Performance Products would be the two to check for current availability.
1 answers

Will this engine mate to a 700r4?

dougr
Elk Grove, Ca
January 21, 2015

Will this engine mate to a 700r4?

Answers

January 22, 2015
EricM
This Cadilac engine requires the correct transmission to bolt to the block as the starter is at the top center under the intake manifold. The standard 700R4 transmission will not work.
1 answers

will this engine bolt in my 1994 STS

caddymanSTS
November 28, 2014

will this engine bolt in my 1994 STS

Answers

November 28, 2014
EricM
No this will not fit your car. The only application information that we have available is shown bleow. 2004–2009 Cadillac XLR 320 hp (239 kW) @ 6400 rpm 310 lb•ft (420 N•m) @ 4400 rpm 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
1 answers

Can the engine be used in front will drive application and matted with an 4t80eused in a 02 deville? Want to swap engines and us this engine with 4t80e. What would a swap like this involve for engine clearance and such?

Rizaan
Louisville, KY, USA
November 17, 2014

Can the engine be used in front will drive application and matted with an 4t80eused in a 02 deville? Want to swap engines and us this engine with 4t80e. What would a swap like this involve for engine clearance and such?

Answers

November 18, 2014
EricM
This engine can be swapped into many applications. Sorry we do not have any info on using with a 4T80E transmission.
1 answers

Will this engine fit my 05 pontiac bonnie gxp?

05gxpguy
49442
July 31, 2014

Will this engine fit my 05 pontiac bonnie gxp?

Answers

August 01, 2014
Travisp
This 4.6 Northstar engine has specific applications as noted: Great for you hot rod use, but will also fit the following stock L37 vin code "9" applications: Cadillac El Dorado ETC Cadillac Seville STS Cadillac Deville Concours/DTS The engine was used in these front wheel drive vehicles and as hot rod enthusiasts it has been used in multiple other applications. Installation in such as Pontiac would require installation hardware currently not offered and would be up to the customer for fabrication of these brackets or web searching a manufacturer.
1 answers

What is the warranty # years & miles?

cadillac
Florida
July 16, 2014

What is the warranty # years & miles?

Answers

July 16, 2014
EricM
These are sold as is at a greatly reduced cost than they originally sold for from GM. Due to that they are sold as is without warranty.
1 answers

Vin is 1G6YV36A77. Is this a direct replacement for this 07 XLR?

docwood
March 21, 2014

Vin is 1G6YV36A77. Is this a direct replacement for this 07 XLR?

Answers

March 24, 2014
EricM
Sorry I can not confirm, nor deny the fitment of this engine to your vehicle. We intend for these to be used in hot rod applications. The extent of the original application that we know of for this engine is as follows: 2004–2009 Cadillac XLR 320 hp (239 kW) @ 6400 rpm 310 lb•ft (420 N•m) @ 4400 rpm 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
1 answers

Need engine for 07 XLR with 8th diget in vin# A. Will this work?

docwood
March 14, 2014

Need engine for 07 XLR with 8th diget in vin# A. Will this work?

Answers

March 17, 2014
EricM
The Northstar engine number 91599282 is for engine code Y on the VIN. One way to tell is water pump location and this has the front mount pump whereas the standard engine has the rear of the head mount water pumps. This was originally engine number 89017549 and replaced by Goodwrench 19178925.
1 answers

How much does this engine weigh? Searching engine options to put in VW Baja Bug,wanting a ECU system.

BugDug
NorCal
July 09, 2013

How much does this engine weigh? Searching engine options to put in VW Baja Bug,wanting a ECU system.

Answers

July 10, 2013
Jason
The shipping weight of the 4.6L Northstar engine is 516 pounds(includes pallet and packaging). Sorry, we do not have a bare weight listed.
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