ls7

LS7

Through December 31, get a $250 mail-in rebate on all Chevrolet Performance crate engines.

LS7, a living legend 

With its classic 427-cubic-inch displacement, the 505-hp LS7 7.0L made its mark in the C6 Corvette Z06 and advanced its legacy in the fifth-generation Camaro Z/28.

PART NO. 19329246

WhyBuy

505 HP @6300 RPM

WhyBuy

470 LB-FT @6300 RPM

A living legend 

The LS7 uses a unique cylinder block casting with pressed-in steel cylinder liners to accommodate the engine’s large, 4.125-inch cylinder bores – with deck-plate boring and honing for optimized bore geometry.

Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.  

Through December 31, get a $500 or $750 mail-in rebate on all Chevrolet Performance Connect & Cruise systems.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

LS7 Tech Specs

  • Part Number: 19329246
  • Engine Type: LS-Series Small-Block V-8
  • Displacement (cu. in.): 427 (7.0L)
  • Bore x Stroke (in.): 4.125 x 4.000 (104.8 x 101.6mm)
  • Block (P/N 12602689): Cast-aluminum with six-bolt steel main bearing caps
  • Crankshaft (P/N 12611649): Forged steel
  • Connecting Rods (P/N 12661677): Forged titanium
  • Pistons: Hypereutectic aluminum
  • Camshaft Type (P/N 12638426): Hydraulic roller
  • Camshaft Lift (in.): .593 intake / .588 exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads (P/N 12578449): CNC ported LS7-style ports; 70-cc CNC combustion chambers
  • Valve size (in.): 2.200 titanium intake / 1.610 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: Premium pump
  • Maximum rpm: 7000
  • Reluctor Wheel: 58X
  • Balanced: Internal

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • See participating U.S. dealer or authorized powertrain reseller for details and rebate form, which must be postmarked by 1/31/18. Rebates are available to customers who have purchased the parts detailed above at a participating Chevrolet, Buick, GMC, or Cadillac dealer or a powertrain retailer located in the United States. See rebate form for eligible parts and details. Allow 6 to 8 weeks for delivery of debit card. Offer valid 11/1/17 to 12/31/17. Rebate form and details available at chevrolet.com/performance/offers.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.