Chev 350 Vortec 330HP GM 4 Bolt Roller Cam Complete Engine

Chev 350 Vortec 330HP GM 4 Bolt Roller Cam Complete Engine

Upgrade your Chevy with a turnkey, complete engine built for reliability and real-world performance. This GM 4-bolt main, cast-iron block features a one-piece rear main seal and a hydraulic roller cam, delivering 330 horsepower at 5,000 RPM and 380 ft-lbs of torque at 3,800 RPM.

Power and drivability

• Horsepower: 330 @ 5,000 RPM
• Torque: 380 ft-lbs @ 3,800 RPM
• Max recommended RPM: 5,500
• Compression ratio: 9.1:1

Engine architecture and key specs

• Block: Cast iron four-bolt main with one-piece rear main seal (GM 10105123)
• Flexplate: 168 teeth, 11" diameter
• Crankshaft: Nodular cast iron (GM 14088527)
• Connecting rods: PM steel (GM 10108688)
• Pistons: Cast aluminum (GM 12361371)
• Piston rings: 14089025
• Timing chain: 14087014
• Cylinder heads: Cast iron 64cc Vortec combustion chambers (GM 12558060)
• Intake valves: 1.94" (GM 10241743)
• Exhaust valves: 1.50" (GM 12550901)
• Valve springs: 10212811
• Rocker arms: 1.5 ratio (GM 10089648)
• Valve lash: Zero
• Ignition timing: 10 BTDC @ 700 RPM
• Cam spec: Hydraulic roller

Designed for durability and straightforward installation

This complete engine package emphasizes reliability and real-world performance. The four-bolt main block enhances rigidity under high-performance use, while the Vortec cylinder heads with 64cc chambers optimize combustion efficiency across the RPM range. The hydraulic roller cam delivers strong lift with smooth, street-friendly manners and crisp throttle response. Precise components—nodular iron crank, PM steel rods, and cast aluminum pistons with matched rings and timing chain—work together to support reliable torque and horsepower while maintaining balance and weight for improved response.

What’s included and how it benefits your build

The complete engine package is assembled for durability and straightforward installation, designed to drop into a compatible GM small-block chassis with minimal modification. The combination of a rigid four-bolt main block, Vortec heads, and a hydraulic roller cam provides strong, street-friendly power from the snap of the throttle to highway cruising. For pricing and freight details, please contact us prior to purchase for a freight quote.