19420880 Features:
- Displacement (cu in): 350
- Bore x Stroke (in): 4.000 x 3.480
- Block: Cast-iron with 4-bolt main caps
- Crankshaft: Forged steel
- Connecting Rods: Powdered metal steel
- Pistons: Cast-aluminum
- Camshaft Type: Hydraulic flat tappet
- Camshaft Lift (in): .435 intake / .460 exhaust
- Cylinder Heads): Vortec iron; 64cc chambers
- Valve Size (in): 1.940 intake / 1.500 exhaust
- Compression Ratio: 9.0:1 nominal
- Rocker Arms): Stamped steel
- Rocker Arm Ratio: 1.5:1
- Water Pump: Cast iron, long-style
- Flexplate: 12.750"
- Ignition Timing: 32-degree Total @ 4,000 rpm
- Maximum Recommended rpm: 5,100
- Balanced: External
- Intake Manifold: Dual Plane
INSTALLATION NOTES:
- Includes 12.750" externally balanced 153-tooth automatic transmission flexplate - Requires externally balanced flywheel for manual transmission
- Right-side oil dipstick
- Requires fuel line from the fuel pump to carburetor
- Fuel pump pressure is pre-set; fuel pressure regulator not required
- Some assembly and minor engine tuning required
- Designed for pre-1976 street vehicles or any off-road vehicle
- Not intended for marine applications
- Recommends premium fuel
- Chevrolet Performance Front Accessory Drive Kits include a Reverse Rotation Water Pump
19433031 supersedes 19420880, 19431611
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