LSX376-B15 (6.2L)
Part Number: 19434412Suggested Retail: $$17,066.72
LSX376-B15 Chevrolet Performance LSX-Series Crate Engine 19435104
473hp @ 6,000 rpm
444 lb.-ft. @ 5,000 rpm
NOTE: Refer to catalog for the complete horsepower and torque testing procedures.
Forged internals support higher boost!
If you want to stretch the performance of a turbocharged or supercharged combination, Chevrolet Performance’s LSX376-B15 is the foundation you need! Its durable, all-forged rotating assembly supports up to 15 pounds of boost - and our ratings of 473 horsepower and 444 lb.-ft. of torque are only baseline numbers of what this engine can offer.
The LSX376-B15 includes the six-bolt high-flow, rectangular-port LSX-LS3 heads. Additionally, we deliver the engine without an intake manifold and other accessories, allowing you to tailor the induction system and other features to suit the forced-induction setup of your choice.
Our horsepower and torque ratings are based on testing with the productionstyle, normally aspirated fuel injection system. The power you make with a supercharger or turbo will vary.
Chevrolet Performance LS376/525 Crate Engine Installation Notes
- Assembly does not include any electronics
- Not intended for marine applications
- Requires LS/LSX Ignition Controller P/N 19355418 for carbureted applications (see catalog)
- LSX 8-bolt crank flange
- Assembly shipped without an intake manifold (see catalog)
- Requires the purchase and installation of an oil pan (see catalog) (dust shield installed for shipment)
- Recommended max boost - 15 psi
- Use LS376/525 engine control kit P/N 19354332 for fuel injected applications
- Calibration provided with control kit LS376/525 P/N 19354332 may need to be modified to match the remaining hardware selected for the application
Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.
Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump
This part is intended for competition use only. See page 2 of catalog for complete details
| TECH SPECS | Part Number: 19435104 |
| 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 19417352): | LSX cast iron with 6-bolt, cross-bolted main caps |
| Crankshaft (P/N 12603616)): | Forged steel |
| Connecting Rods (P/N 12604857): | Forged powder metal |
| Pistons (P/N 19259381): | Forged aluminum |
| Camshaft Type (P/N 12638426): | Hydraulic roller |
| Valve Lift (in): | .560 intake / .555 exhaust |
| Camshaft Duration (@.050 in): | 210° intake / 230° exhaust |
| Cylinder Heads (P/N 19419187): | LSX-LS3 rectangular port; with “as cast” 68cc chambers and 6-bolt attachment |
| Valve Size (in): | 2.160 intake / 1.550 exhaust |
| Compression Ratio: | 9.0:1 |
| Rocker Arms (P/N 12669995 int): | Investment-cast, roller trunnion |
| Rocker Arms (P/N 12681275 exh): | Investment-cast, roller trunnion |
| Rocker Arm Ratio: | 1.7:1 |
| Recommended Fuel: | Regular pump |
| Maximum Recommended rpm: | 6,600 |
| Reluctor Wheel: | 58x |
| Balanced: | Internal |
