LSX B15 Long Block

Chevrolet Performance CPP LSX 376-B15 long block crate engines allow builders to stretch the performance of turbocharged or supercharged combinations. These replacement powerplants are durable and feature all-forged rotating assemblies that support up to 15 lbs. of boost. They're topped off with high-flow, LSX-LS3 6-bolt rectangular port heads to create an affordable foundation for power.

Chevrolet Performance CPP LSX 376-B15 long block crate engine technical specs:

* Engine type: LSX-Series Gen IV small block V8
* Displacement: 376 c.i.d.
* Bore x stroke: 4.065 x 3.622 (103.25 x 92mm)
* Block: LSX cast iron with 6-bolt cross-bolted main caps
* Crankshaft: Forged steel
* Connecting rods: Forged powdered metal
* Pistons: Forged aluminum
* Camshaft type: Hydraulic roller
* Valve lift: .560 intake/.555 exhaust
* Camshaft duration (@ 0.050 in.): 210 degrees intake/230 degrees exhaust
* Cylinder heads: LSX-LS3 rectangular port with "as-cast" 68cc chambers and 6-bolt attachment 
* Valve size: 2.160 intake/1.550 exhaust
* Compression ratio: 9:1
* Rocker arms: Investment-cast roller trunnion
* Rocker arm ratio: 1.7:1
* Recommended fuel: Regular pump
* Maximum recommended rpm: 6600
* Reluctor wheel: 58X
* Balanced: Internal

*Oil pan not included.

473hp @ 6000 rpm on a Non-Boosted application with OEM LS3 intake manifold!

Long Block comes with LSA Crank pulley. LSA water pump, alternator, power steering is needed to match with the crank pulley. Corvette serpentine drive also matches the LSA pulley if running NA.  Most LS/LQ Accessory drive will also bolt up to the block.