L99 to LS3 conversion

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Apr 22, 2014 | 09:32 AM

pcguy2u

Thread Starter

Melting Slicks

Joined: Apr 2010

Posts: 2,790

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From: On the coast North of SF bay

L99 to LS3 conversion

Anyone have any experience (good or bad) with converting an L99 engine to an LS3?

I am really looking for a factory LS3 with an A6 bolted on the back at the factory with the factory tune. Very few of those around.

Since I would likely change the cam in the LS3 anyway, been thinking about an L99.

How about the heads - they are probably different???

Nick

Apr 22, 2014 | 01:26 PM

Unreal

Team Owner

Joined: Nov 2007

Posts: 24,035

Likes: 2,342

From: Gilbert AZ

Lifter and valley plate swap along with the cam/cam gear. Super simple. If you can do a cam swap you can do the conversion.

Apr 22, 2014 | 01:31 PM

Crawler

Instructor

Joined: Apr 2014

Posts: 180

Likes: 3

From: Dallas TX

As unreal said, very simple. Gather the parts on your own or hit up one of the reputable vendors and they can supply it all as a kit.

Apr 22, 2014 | 02:17 PM

0Anthony @ LGMotorsports

Former Vendor

Joined: Aug 2005

Posts: 16,897

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From: Lewisville TX

St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13

Quote:

Originally Posted by Unreal

Lifter and valley plate swap along with the cam/cam gear. Super simple. If you can do a cam swap you can do the conversion.

Along with a standard LS3 front cover. I also use the LS2 timing chain damper.

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