LS6. The LS6 is an improved version of the LS1. It was introduced in 2001 for the Z06 Corvette. The LS6 was available in the Corvette until 2004. It was also available in the 2004-05 Cadillac CTS-V. For specific details about these engines, please follow the links below: Chevy LS1 Engine Specs; Chevy LS6 Engine Specs; Upgrading the LS1 and LS6 ...

LS6. Throttle Body: 78mm, 3-Bolt. Throttle Control: Drive By Wire. Fuel Injector Flow: 30 lbs. Fuel Injector Length (between O-Rings) 2.5 in. Fuel Injector Connector: EV1. PCM: Warren. Crankshaft Reluctor Ring: 24x. Camshaft Sensor: Rear Mount, 1x on cam. Oil Pan (Corvette) Bat Wing. Oil Pan (CTS-V) Rear Sump. Oil Pump: Standard Volume

The LS1 heads were good, but the LS6 were better. Both respond well to custom machine work: Porting - CNC machined factory heads (LS1 or LS6) can flow over 320 cfm. Milling/Decking: Without modifying the intake manifold, LS1 heads can be taken to 62cc chamber volume. The LS6 can be taken down to 60cc. This will create up to 11:1 compression on ...

These kits replace all the AFM components with standard parts. It also becomes easier to fit an LS6 intake manifold. The smooth, non-AFM valley cover won't interfere with underside of the manifold. Cylinder Heads. The cathedral port cylinder heads are based on the LS6 heads and make good power. You can mill them about 0.030 in. for more ...

Chevrolet's 3rd and 4th generation small block engines are generally known by their RPO code. You can determine the RPO code if you have the Vehicle Identification Number (VIN) from the original vehicle.

The following specs apply to RPO codes: LS1; LS6; LM4; L33 **Click the blue links in the table for more detailed information**

For all Gen. 3 and 4 Chevy small block engines with the same Displacement, the Bore Diameter and Stroke Length are the same.

LS Cylinder Head Torque Specs: Engine Family: Bolt Size: First Pass: Second Pass: Final Pass: Gen. 3 (LS1, LS6, etc.) M11 x 155.5mm

Displacement Markings: Block Material: Timing Cover: Intake Manifold : Engine/Series: 4.8/5.3L: Cast Iron: Plain: Truck: LR4, LM7, or L59

It used the new Gen. 4 block and the cathedral port heads from the LS6. The LS2 added more Displacement and better heads for more Horsepower and Torque . The LS2 was available in the Corvette and the CTS-V until 2007. It was also used in the GTO in 2005 and 2006. L76. The L76 was an adapted version of the LS2.