LSX376-B8 


KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

Build boost on a budget 

Chevrolet Performance takes the LSX Bowtie standard-deck block, adds blower-friendly 9.0:1 forged pistons and combines them with the LS3’s high-flow, rectangular-port heads.

PART NO. 19332312

WhyBuy

476 HP @5900 RPM

WhyBuy

475 LB-FT @4700 RPM

Forced-induction friendly

The LSX376-B8 is designed for lower-boost applications, up to about 8 pounds. That’s suitable for most supercharger and turbo kits that are designed to be used with production-based applications.

Installation Guides

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

LSX376-B8 Tech Specs

  • Part Number: 19332312
  • Engine Type: LSX-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 19260095): LSX cast-iron with six-bolt, cross-bolted main caps
  • Crankshaft (P/N 12685659): Nodular iron
  • Connecting Rods (P/N 12649190): Powdered metal
  • Pistons (P/N 19244016): Forged aluminum
  • Camshaft Type (P/N 12623063): Hydraulic roller
  • Valve Lift (in.): 0.551 intake / 0.522 exhaust
  • Camshaft Duration (@0.050 in.): 204° intake / 211° exhaust
  • Cylinder Heads (P/N 12629063): LS3 rectangular port; with “as cast” 68-cc chambers
  • Valve Size (in.): 2.160 intake / 1.590 exhaust
  • Compression ratio: 9:1
  • Rocker Arms (P/N 12669995 int): Investment-cast, roll trunnion
  • Rocker Arms (P/N 12681275 exh): Investment-cast, roll trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Regular pump
  • Maximum Recommended rpm: 6600
  • Reluctor Wheel: 58X
  • Balanced: Internal

Mobil 1 is now The Official Motor Oil of Chevrolet Performance.

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.