Chevy L99 Engine Specs · Help Center - Summit Racing
LS Family = Gen. 4, 6.2L, Aluminum Block, Car Engines
Intro to the LS3 and L99 · Help Center - Summit Racing
L99 The L99 was an adapted version of the LS3. It was ONLY available in the 2010-15 Camaro SS with an automatic transmission. It used different pistons, crankshaft, camshaft, and valves. …
Upgrading the LS3 and L99 Engines · Help Center - Summit Racing
Cylinder Heads The L99 and LS3 heads have rectangle intake ports. The lighter hollow stem valves used in the LS3 can be installed in L99 heads to increase the rpm range. It is also …
Intro to the L92, L9H, and L94 · Help Center - Summit Racing
The stock engines all make over 400 hp. The engine blocks have the same casting number as the LS3 and L99. They share a 4.065 in. bore, Variable Valve Timing (VVT) and rectangle port …
LS Engine Tech - Variable Valve Timing (VVT) · Help Center
Overview of the Chevy VVT System Variable Valve Timing (VVT) is a system that automatically adjusts Valve Timing. **The table below shows the engines that were originally equipped with …
LS Engine Tech – Active Fuel Management (AFM) · Help Center
Overview of the Chevy AFM System The purpose of Active Fuel Management (AFM) is to improve gas mileage. It is also known as Displacement on Demand (DOD) or cylinder deactivation. …
I don't know the VIN. Which LS engine do I have? · Help Center
Identify Chevy LS Engines by Inspection Before you begin any project, you need to know the starting point. When it comes to Chevrolet's 3rd and 4th generation small blocks, there can be …
How do I delete the VVT on my LS engine? · Help Center
LS Engine VVT Delete Kits This article applies to any Gen. 4, Chevy LS engine with the Variable Valve Timing (VVT) System. A VVT Delete Kit removes the VVT components and replaces …
Chevrolet LS Gen. 4 Aluminum Block Torque Specs · Help Center
Gen. 4, Aluminum Block, LS Engines The following specs apply to RPO codes: LS2 LS3 LS4 LH6 LC9 L92 Etc. **Click the blue links in the table for more detailed information**
How do I install my LS cylinder heads? · Help Center
Installation Procedure, Torque Specs and Sequence To properly install your LS Cylinder Heads, follow the steps below. This will prevent oil and coolant leaks and a loss of compression from a …