Breakdown of Included Items

LS7 / 7.0L Crate Engine

Engineers extracted Big-Block grunt from its high-revving Small-Block package. It features a unique, big-bore cylinder block that is anchored with a forged crankshaft, featherweight titanium connecting rods, and friction-coated pistons. But it's the airflow capability of the cavernous, CNC-ported heads that enables its tremendous power. Large-volume, straight-passage intake runners channel air directly through 2.20-inch titanium intake valves.

LS7 Tech Specs:

• Engine Type: LS-Series Gen IV Small-Block V-8
• Displacement: 427 ci (7.0L)
• Bore x Stroke: 4.125 in. x 4.000 in. (104.800 x 101.600 mm)
• Block: Cast-aluminum with six-bolt steel main bearing caps
• Crankshaft: Forged steel
• Connecting Rods: Forged titanium
• Pistons: Hypereutectic aluminum
• Camshaft Type: Hydraulic roller
• Camshaft Lift: .593 in. intake / .588 in. exhaust
• Camshaft Duration (@.050 in.): 211-degree intake / 230-degree exhaust
• Cylinder Heads: CNC ported LS7-style ports; 70-cc CNC combustion chambers
• Valve Size: 2.200 in. titanium intake / 1.610 in. sodium-filled exhaust
• Compression Ratio: 11.0:1
• Rocker Arms: Investment-cast, roller trunnion
• Rocker Arm Ratio: 1.8:1 (offset, intake only)
• Recommended Fuel: 91 octane (Minimum)
• Maximum Recommended rpm: 7000
• Reluctor Wheel: 58X
• Balanced: Internal

Supermatic 6L80-E Transmission

Chevrolet Performance 6L80-E SuperMatic Six-Speed Automatic Transmission is based on the production version six-speed transmission found in many modern rear-wheel-drive GM vehicles. This aftermarket version of the transmission is enhanced with upgraded internal components that allow for a much higher torque output of 650 ft.lbs. that is 45 percent higher than regular production models. Equipped with a 4.02:1 first gear for strong off-the-line acceleration and a 0.67:1 final gear for smooth highway cruising, the 6L80-E is perfect for any project vehicle running a Chevrolet LS engine in a RWD configuration.

6L80-E SuperMatic Features:

• Six-Speed Automatic
• 3000-3400 Stall Converter
• Truck-Style Production Oil Pan
• Production Vent Tube Assembly
• 32-Bit Transmission Controller with street & track calibrations
• Transmission Bulkhead Connector
• -6 AN line fittings

6L80-E SuperMatic Gear Ratios:

• 1st: 4.02:1
• 2nd: 2.36:1
• 3rd: 1.53:1
• 4th: 1.15:1
• 5th 0.85:1
• 6th 0.67:1

Engine Control Module and Harness

A precisely calibrated engine control module is essential to making your modern fuel-injected engine perform in your older vehicle.  Unlike production controllers that may or may not come with a used engine, these controllers are calibrated for installation in older vehicles. That means many of the features required for late-model production vehicles are "turned off," because they're not required in older cars and trucks. That means features that may trigger a diagnostic trouble code and possibly affect performance - requiring additional tuning - are not enabled. These controller kits deliver all the components required to plug into the engine and get it running - from the controller itself and the accompanying wire harness to the mass airflow sensor, oxygen sensors, and even a throttle pedal assembly. The kits also include detailed instructions to help you do it right the first time, even if you have no experience.

INSTALLATION NOTES:

• Assembly does not include accessory drive kit
• Comes assembled with 14-inch 168-tooth flywheel
• LS7 is the same size and mounts the same as other LS-Series engines
• Use oil hose adapters (P/N 25534412) to adapt dry sump to AN-12 fittings
• Intended for pre-1976 street vehicles or any off-road vehicle
• Transmission requires DEXRON VI fluid
• 6L80 does NOT include a transmission dipstick

GM Warranty