2016-2017 376ci COPO LT Crate Engine NHRA Rated At 410 HP

The COPO LT (P/N 19351766) is a high-power blend of the latest technologies and proven horsepower-building elements. It builds on the strength of the LT1 6.2L engine found in the production Corvette Stingray and Camaro SS, and adds a hotter camshaft, an all-forged rotating assembly, CNC-ported heads and a Holley Hi-Ram intake manifold

Technical Specs

• Block: Chevrolet Performance LT1 Aluminum with 6-bolt nodular iron main caps
• Bore / Stroke: 4.062" x 3.622"
• Static Compression Ratio: 12.4:1 nominal
• Crankshaft: LT4 Forged Steel
• Connecting Rods: Callies 4340 H-beam "Compstar" Forged Steel, 6.125" Length, .927" Pin Bore Diameter
• Bearings: Clevite "H-Series" heat-treated tri-metal rod and main bearings
• Pistons: Mahle forged 2618 alloy, Dome Top, Graphal coating, Friction-coated skirts
• Piston Rings: Mahle 1mm x 1mm x 2mm, Ductile iron top with radius molybdenum face, Plain cast-iron tapered 2nd, Chrome-plated oil rails with low-tension expander
• Camshaft: Chevrolet Performance steel billet hydraulic roller; Duration - 242° int. / 285° exh. @ .050"; Theoretical Valve Lift - .641" int. / .641" exh.
• Tappets: Johnson Hydraulic Roller
• Pushrods: 3/8" diameter Trend Performance chrome moly
• Rocker Arms: 1.8:1 ratio LT1 with roller trunions
• Valve Springs: Performance Springs Incorporated (PSI) "Max Life" beehive
• Cylinder Heads: Fully CNC'd Aluminum LT; Nominal Intake Port Volume - 316cc; Nominal Exhaust Port Volume - 118cc; Nominal Combustion Chamber Volume - 53cc
• Intake Valves: Del West titanium 2.135" (Head Diameter) x 8mm (Stem Diameter)
• Exhaust Valves: Lightweight sodium-filled 1.595" (Head Diameter) x 8mm (Stem Diameter)
• Head Gaskets: Chevrolet Performance LT1 multi-layer steel head gaskets
• Oil Pump: Internal wet sump
• Oil Pan: Deep-sump cast aluminum 6-quarts
• Harmonic Damper: ATI Performance Products SFI-approved "Super Damper"
• Water Pump: Meziere Billet electric water pump
• Intake Manifold/Induction: Chevrolet Performance/Holley "Hi Ram"
• Throttle Body: Whipple Industries - Billet Aluminum 90mm, Cable-actuated
• Fuel Injectors (Flow Rate): LS4 DI @ 200 bar pressure
• Ignition: Production LS7 ignition coils and secondary wires