QUALITY PARTS.
HIGH-CALIBER BUILD.
Offer Valid 1/1/24 to 12/31/24
$250
The classic 350
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.
PART NO. 19433031
333 HP @ 5100 RPM
381 LB-FT @3700 RPM
Updates Galore
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.
Connect & Cruise Powertrain System
Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.
†Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Parts only when consumer repaired or installed in non-highway application. Coverage limited to defects in material and/or workmanship of the specific part only. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice.
††Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 to 12/31/24.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details. Rebate form and details available at chevrolet.com/performance/offers.
Installation Guides
Find everything from vital data about your engine’s capabilities to how to install it into your build.
Tech Specs
- Part Number: 19433031
- 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 four-bolt main caps
- Crankshaft (P/N 14088526): 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
- Camshaft Duration (@.050 in.): 212° intake / 222° exhaust
- Cylinder Heads (P/N 12558060): Vortec iron; 64-cc 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 88894341): Cast iron, long-style
- Flexplate (P/N 14088765): 12.750"
- Recommended Fuel: Premium pump
- Ignition Timing: 32° Total @ 4,000 rpm
- Maximum Recommended rpm: 5100
- Balanced: External
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.