GM / Chevrolet LS 376/525 Crate Engine

GM / Chevrolet LS 376/525 Crate Engine

  • $9,533.56
    Unit price per 


Description

Fuel-injected ferocity for performance cars of all ages

What do you get when you take Chevrolet Performance’s aggressive ASA camshaft — developed for the high-rpm world of circle-track racing — and slip it into an LS3 6.2L engine? The answer is 525 horsepower in one of our most powerful production-based crate engines. We call it the LS376/525, and if take-no-prisoner performance is what you’re looking for in your new Camaro or restomod Chevelle, this is it.

The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees of duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breathe exceptionally well at high rpm. And for durability, we complement the cam with higher-rate valve springs.

You’ll need tuning to make the most of the engine in a late-model GM vehicle. If you plan to use the LS376/525 in a vintage car, you’ll need the controller kit (P/N 19259261), which includes the throttle pedal to match its electronically controlled throttle body. Check out our LS1 Engine Kit Installation Guide (P/N 88959384) for details on installing an LS engine in a vintage vehicle.

Tech Specs

  • 525 HP @6300 RPM
  • 486 LB-FT Torque
  • Engine Type: LS-Series Gen-IV Small-Block V-8
  • Displacement (cu. in.): 376 (6.2L)
  • Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)
  • Block (P/N 12623967): Cast aluminum with six-bolt, cross-bolted main caps
  • Crankshaft (P/N 12597569): Nodular iron
  • Connecting Rods (P/N 12607475): Powdered metal
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • Camshaft Type (P/N 88958770): Hydraulic roller
  • Valve Lift (in.): 0.525 intake / 0.525 exhaust
  • Camshaft Duration (@0.050 in.): 226° intake / 236° exhaust
  • Cylinder Heads (P/N 12629063): Aluminum L92-style port; “as cast” with 68-cc chambers
  • Valve Size (in.): 2.165 intake / 1.590 exhaust
  • Compression Ratio: 10.7:1
  • 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 Recommended rpm: 6600
  • Reluctor Wheel: 58X
  • Balanced: Internal