Description

THE CLASSIC 350 READY TO ROCK!
Forget rebuilding! Our 350 HO is assembled with all-new parts and high-flow heads, giving you more power than just about any production-spec Small-Block ever installed at the factory: 333 hp and a satisfying 381 lb.-ft. of torque. It’s affordable power with dependability you can count on.
A cast-iron block with four-bolt main caps is the foundation for the 350 HO, which is topped with iron Vortec heads fitted with 1.94/1.50-inch valves. Its durable rotating assembly has aluminum pistons delivering a 9.0:1 compression ratio, while a hydraulic flat-tappet camshaft requires no periodic lash adjustments.
As one of our Turn-Key crate engines, the 350 HO Turn-Key comes with the intake manifold and distributor installed. It also includes the carburetor, front-accessory kit, starter, fuel pump and spark plug wires (not installed).
The 350 HO is also available in “Deluxe” and “Base” configurations. See next page for information.
TECH SPECS
Part Number: 19420880
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.480
Block (P/N 10105123): Cast-iron with 4-bolt main caps
Crankshaft (P/N 10243070): Nodular iron
Connecting Rods (P/N 10108688): Powdered metal steel
Pistons (P/N 12514101): Cast-aluminum
Camshaft Type (P/N 24502476): Hydraulic flat tappet
Camshaft Lift (in): .435 intake / .460 exhaust
Cylinder Heads (P/N 12558060): Vortec iron; 64cc chambers
Valve Size (in): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.0:1 nominal
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Water Pump (P/N 19201601): Cast iron, long-style
Flexplate (P/N 14088765): 12.750″
Recommended Fuel: Premium pump
Ignition Timing: 32° Total @ 4,000 rpm
Maximum Recommended rpm: 5,100
Balanced: External
Intake Manifold (P/N 12496820): Dual Plane
INSTALLATION NOTES

  • Comes with 12.750″ externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
  • Has right-side oil dipstick
  • Requires fuel line from 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
  • Chevrolet Performance Front Accessory Drive Kits include a Reverse Rotation Water Pump.