Chevy LS9 6.2L ZR1 Corvette Crate Motor

Just when you thought the Vette was fast enough, GM Performance offers up the LS9. It's the 600 HP Vette motor available as a crate engine. The LS9 made the ZR1 Corvette the most powerful GM car ever with a 3.4 second 60 mph time. The LS9 is a 6.2 Liter engine with some special treatments. This LS9 boasts stronger block casting, stronger cylinder head castings and steel cylinder liners that are honed with a deck plate installed to maximize performance and cylinder sealing.

Possible Applications

  • Build a ZR1 powered wagon
  • LS9 your Camaro

*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.

Part number: 19201990
Engine type: LS Series Gen IV Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.06 x 3.62 (103.25 x 92mm)
Block: Cast-aluminum with 6 bolt, cross-bolted main caps
Crankshaft (P/N 12598610): Forged steel
Connecting rods (P/N 12624231): Forged titanium
Pistons (P/N 12598634): Forged aluminum
Camshaft type(P/N 12605527): Hydraulic roller
Camshaft lift: .562" Intake and .558" Exhaust
Camshaft Duration (@.050 in): 211 degree intake / 230 degree exhaust
Cylinder heads (P/N 12621774): Aluminum L92 style ports; as cast with 68cc chambers
Valve size (in): 2.16 intake / 1.59 exhaust
Compression ratio: 9.1:1
Rocker arms (P/N 12569167 int): Investment cast, roller trunnion
Rocker arms (P/N 10214664 exh): Investment cast, roller trunnion
Rocker arm ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum rpm: 6,600
Balanced: Internal

LS9 6.2 liter engine

Part #:19201990

LS9 6.2L liter dyno image

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.