Chevy 350/290 HP Crate Engine

GM Performance 350/290 engines are all about quality and low price. Most people buy it because it's a great engine with good performance at a super low price for the engine you get. Not everyone can afford a 600 HP big block, so GMPP makes the 350/290 crate motor for smaller budgets. With 290 hp @ 5100 rpm and 326 lb.-ft. of torque at 3750 rpm, the 350/290 performs and lasts for miles of reliable fun.

GM Performance 350 - 290 engines are built with a 4 bolt main block, aluminum pistons and hydraulic cam. Cast iron heads provide a balance between good flow and cost savings over aluminum heads.

The 350/290 comes as a long block. You add your carb, intake, ignition, starter, balancer, water pump and a few other components. With a low base price, you can afford to add some high performance parts to make a strong runner.

Possible Applications*

  • Provide a good replacement for just about any vehicle
  • Finish a budget first Hot Rod
  • A good engine for a father/son/daughter project

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. See specific warranty information. Some applications may not be emission legal; check state and local ordinances.

350/290 HP TECH SPECS:
Part Number: 12499529
Engine type: Chevy small-block V-8
Displacement (cu in): 350
Bore x stroke (in): 4.00 x 3.48
Block (P/N 10066034): Cast iron with 4-bolt main caps
Crankshaft (P/N 93426651): Nodular iron
Connecting rods (P/N 10108688): Powdered metal steel
Pistons (P/N 12514101): Cast aluminum
Camshaft type (P/N 3896962): Hydraulic flat tappet
Camshaft lift (in): .450 intake / .460 exhaust
Camshaft duration (@.050 in): 222° intake / 222° exhaust
Cylinder heads (P/N 93438648): Iron; 76 cc chambers
Valve size (in): 1.94 intake / 1.50 exhaust
Compression ratio: 8.5:1
Rocker arms (P/N 10089648): Stamped steel
Rocker arm ratio: 1.5:1
Recommended fuel: 87 octane
Ignition timing: 34° total BTDC
Maximum rpm: 5100

Chevy 350 290 horsepower engine image

Part #: 12499529

Chevy 350- 290 horsepower dyno image

Installation Notes

  • For complete list of parts to complement and finish this engine, turn the page.
  • Use internally balanced flexplate P/N 471529 for automatic transmission or flywheel P/N 14085720 for manual transmission (not included).
  • Power ratings based on tests with Holley 600-cfm carburetor P/N 12497147 (not included).
  • Intended for pre-1977 street vehicles and all off-road vehicles.
  • Not intended for marine applications.
  • Comes with black-painted valve covers with perimeter-style hold downs; see Valve Covers section on next page for selection of chrome, polished and aluminum valve covers.