LT4 Wet Sump LONG BLOCK Gen V Crate Engine 6.2L - 12716403

Description These are on backorder / special order with GM and currently hard to get. (Updated 3-26-25) PRICE INCLUDES FREE FREIGHT TO A COMMERCIAL ADDRESS. NOTES •Long Block Assembly does not include any electronics, no intake/supercharger, no fuel system components (No HPFP, no lines). • Intended as a service engine for 2022-2024 ZL1 . Can be used on earlier LT4 applications, however the cam phaser/actuator changed and we are NOT responsible for any issues you may encounter by installing this in an earlier vehicle! • NO CORE REQUIRED TECH SPECS Part Number: 12716403 Engine Type:Gen V Small-Block V-8 Displacement (cu in):376 cu in (6.2L)

Bore x Stroke (in):4.065 x 3.622 (103.25 x 92mm) Block:Cast aluminum with 6-bolt, cross-bolted main caps Crankshaft:Forged steel Connecting Rods: Forged powdered-metal steel Pistons:Forged aluminum Camshaft Type:Hydraulic roller Valve Lift (in):0.492 intake / 0.551 exhaust Camshaft Duration (@0.050 in):189° intake / 223° exhaust Cylinder Heads:A356T6 Rotocast aluminum; as cast with 65.5cc chambers Valve Size (in):2.130 intake / 1.590 exhaust Compression ratio:10:1 Rocker Arms (P/N 12619829):Investment cast, roller bearing trunnion Rocker Arm Ratio:1.81:1 Recommended Fuel:Premium pump Maximum Recommended RPM:6,600 Reluctor Wheel:58x.

Balanced:Internal Chevrolet Service Engines carry a 1 year warranty when installed into a swap vehicle. If installed into the vehicle it was designed for, they carry a 3 year warranty.