Chevy LS7 7.0L - NO ECM and Wire Harness
LS7 engines need no introduction. When the 2006 Vette showed up, it could hit 60 mph in 3.5 seconds and top out at 198 mph. This was made possible by a technically superior LS7 engine. The LS7 is a massive 7.0 liter small block engine. The LS7 uses a 7.0-liter aluminum dry-sump block, CNC-ported cylinder heads and titanium rods and valves to pump out 505 hp and 470 lb.-ft. of torque. Add an LS7 to your older Vette for over 500 horsepower and hang on fun!
Possible Applications
- A top performing older Vette
*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. See specific warranty information. Some applications may not be emission legal; check state and local ordinances.
| LS7 TECH SPECS: |
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| Part number: | 17802397 |
| Engine type: | Cam-in-block 90-degree V8 |
| Displacement (cu in): | 427 (7.0L) |
| Bore x Stroke (in): | 4.125 x 4.00 (104.8 mm x 101.6 mm) |
| Block P/N 17802854: | Cast aluminum w/6-bolt steel main bearing caps |
| Crankshaft (P/N 12568819): | Forged steel |
| Connecting rods (P/N 12586258): | Forged titanium |
| Pistons (P/N89017774): | Hypereutectic aluminum |
| Camshaft type(P/N 12571251): | Hydraulic roller |
| Camshaft lift: | .591" (15 mm) Intake and Exhaust |
| Camshaft Duration: | 211'c1 intake / 230'c1 exhaust |
| Cylinder heads (P/N 12578450): | CNC Ported LS7 specific pattern 70 cc CNC combustion chambers |
| Valve size (in): | 2.20" titanium intake, 1.61" 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 |
| Maximum rpm: | 7,000 |
| Reluctor wheel: | 58X |
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Part #:17892397
Installation Notes
- Designed for pre-'77 street vehicles or all off-road vehicles.
- Emission legal only as a replacement for '06 Corvette Z06.
- Crate engine does not include wiring harness, electronics, or ECM.
- Comes assembled with 14” Corvette Z06 168 tooth flywheel.
- Comes with new '06 58X reluctor wheel and camshaft sensing and is not compatible with pre-'06 ECMs. Requires aftermarket ECM for any application other than '06 Corvette Z06.
- LS7 is the same size and mounts the same as previous LS series engines.
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