Crate Engine, LS376/525HP, GMPP, Chevrolet, GM # 19435104

Chevrolet Performance's aggressive ASA camshaft that was developed for the high-rpm world of circle-track racing in now available in the LS3 6.2L engine with 525 uncompromising horsepower. This makes it the most powerful naturally aspirated 6.2L street engine in the Chevrolet Performance portfolio. The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees 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. This crate engine package features an aluminum block, cylinder heads, composite intake manifold and F-Body oil pan. Also included is the throttle body, water pump, balancer, 58 tooth reluctor wheel and ignition coils, wires and spark plugs. Engine controller kit required P/N CH33208 is sold separately (includes throttle pedal to match its electronically controlled throttle body).

TECH SPECS GM Part Number: 19432418 / 19434642 Engine Type: LS-Series Gen IV Small-Block V-8 Horsepower: 525 hp Maximum recommended rpm: 6600 rpm Displacement (cu in): 376 cu in (6.2L) Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm) Block (P/N 12623967): Cast aluminum with 6-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 68cc chambers Valve Size (in): 2.165 intake / 1.590 exhaust Compression ratio: 10.7:1 Rocker Arms (P/N 12669995 int): Investment cast, roll trunnion Rocker Arms (P/N 12669993 exh): Investment cast, roll trunnion Rocker Arm Ratio: 1.7:1 Recommended Fuel: Premium pump Reluctor Wheel: 58x Balanced: Internal