For builder who want to stretch the performance of a turbocharged or supercharged combination, we've got just the foundation you need. Chevrolet Performance's new LSX376-B15, featuring a durable, all-forged rotating assembly to handle up to 15 pounds of boost.
Chevrolet Performance's engineers started with the tough LS steel Bowtie standard-deck block, added a forged steel crankshaft, forged rods and forged pistons, then topped off the short-block assembly with high-flow, rectangular-port LSX-LS3 6-bolt aluminum heads for supercharged and turbocharged combinations.
We deliver the LSX376-B15 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. It's perfect as an economical replacement for a late-model performer or a great choice to build a high-boost power plant for a Pro Touring classic
*Horsepower and torque ratings were derived by GM Engineering using a normally aspirated LSX376 with LS3 EFI. Your power numbers may vary, based on induction system and componentry.
Due to the number of application variations, the LSX376 crate engine is supplied with a dust shield instead of an oil pan, Any LS style oil pan and pickup that will fit your chassis can be used. Also, the LSX376 valve covers do not include mounting provisions for mounting the ignition coil brackets. Aftermarket or custom relocation brackets must be used.
Power: 450 HP @ 5900 RPM, 444 ft. lbs. of torque @ 4600 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060” x 3.620”
Compression Ratio: 9:1
Recommended Fuel: 87 Octane
Block: LSX Cast Iron with 6 bolt cross bolted main caps
Crankshaft: Forged 4340 steel, LSX 8 bolt flange
Connecting Rods: Forged Powdered Metal Steel
Pistons: Forged Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .560” Intake / .555” exhaust
Cam Duration @ .050”: 210 deg. Intake / 230 deg. Exhaust
Lobe Separation: 121
Cylinder Heads: Aluminum LS3 Rectangular style ports
Combustion Chamber: 68cc