Crate Motor

Chevy 350 Vortec heavy-duty replacement engine will provide the OE horsepower and torque specifications while adding high-quality durable internals for long-term reliability. New harmonic balancer, oil pan, timing cover, and valve covers come pre-installed allowing less labor time swapping parts around. This engine features precision machine work and final cylinder honing all on computer-controlled machinery.

Engine Specifications

Power Rating: 

•  Horsepower: 255 HP
• Torque: 330 ft.-lbs.

Block Information:

• Displacement: 350 ci, 5.7L
• Cast iron
• 4-bolt main
• 1-piece rear main seal
• 9.025 in. deck height
• 4.000 in. bore
• Dipstick provisions on both driver and passenger side
• Mechanical fuel pump capable (no eccentric on camshaft)

Rotating Assembly:

• Stroke: 3.480 in.
• Crankshaft: Forged 1053 steel
• Balance: External rear, internal front
• Rods: Powdered metal 5.7 in.
• Compression Ratio: 9.4:1
• Pistons: Hypereutectic with graphite coating
• Rings: Mahle Clevite

Camshaft Specs:

• Camshaft: Hydraulic roller
• Cam Duration @ .050 in.: Intake 191 / Exhaust 196
• Cam Lift: Intake 0.414 in. / Exhaust 0.428 in.
• Timing Chain: Single-row roller chain

Cylinder Head Information: