Drop 345 Horsepower in Your Vehicle with an ATK High Performance Stage 1 350/345HP Small Chevy Long Block Crate Engine

Give your Bowtie—or hot rod, truck, custom, or other vehicle—a shot in the arm with an ATK High Performance Stage 1 350/345HP Long Block Crate Engine. The small Chevy long block comes fully assembled with top-quality parts like hypereutectic pistons with moly rings, a hydraulic roller cam, ATK iron cylinder heads, and a high-volume oil pump. Add the induction system, ignition, and accessories of your choice and enjoy the extra power.

Features
• 350 CID, 345 horsepower/400 lbs.-ft. of torque
• Seasoned OEM iron block with four-bolt mains and one-piece rear main seal
• Reground OEM cast crankshaft
• OEM 5.7" powdered metal connecting rods
• Hypereutectic aluminum pistons, 9.1 compression
• Piston ring set with moly top rings
• Hydraulic roller camshaft: 220°/224° at .050", .495"/.502", 110° LSA
• ATK cast iron cylinder heads: 76cc combustion chambers with 1.94"/1.5" valves, 165cc intake runners
• 1.5 ratio stamped steel rocker arms
• Double roller timing chain
• Melling high-volume oil pump with pickup tube
• Five-quart rear sump oil pan
• Chrome valve covers and timing cover

ATK recommends these parts to complete your Stage 1 long block and reach the power figures they made on the dyno. But feel free to use whatever stuff you like—that’s the beauty of a long block.

• PowerBond 8" Harmonic Damper, internal balance
• Pioneer 168-Tooth Flexplate
• Weiand Speed Warrior Dual Plane Intake Manifold
• Quick Fuel HR-Series 680 CFM Carburetor, vacuum secondary
• Holley Mechanical Fuel Pump, 110 GPH
• Champion RV12C Spark Plugs
• HEI distributor with iron cam gear
• 8mm spark plug wires
• Long-style water pump
• Headers with 1 5/8" primary tubes

CHECK OUT THE ATK PERFORMANCE STAGE 1 350/345HP SMALL CHEVY LONG BLOCK CRATE ENGINE