Based on our 350/290 crate engine but with a manifold and dress-up kit!

Quite simply, the 290 HP 350-cubic-inch is the best
small-block crate engine value offered by GMPP! With
290 horsepower and 326 lb.-ft. of torque, it makes a great
replacement engine for countless GM vehicles, while its
all-new construction provides peace of mind over salvage
and rebuilt engines.
The 290 HP is packed with good stuff, too, starting with
the four-bolt-main block, aluminum pistons, and a
hydraulic camshaft. The durable iron cylinder heads
process healthy amounts of air to deliver strong torque
across the rpm range and great mid-range horsepower.

Includes intake manifold and chrome dress-up kit.

DOES NOT include carburetor.  GMPP recommends Holley 670-cfm carb P/N 19170092.

• TECH SPECS: 350/290 HP
• Part Number: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19244450
• Engine type: . . . . . . . . . . . . . . . . . . . . . . . Chevy small-block V-8
• Displacement (cu in): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
• Bore x stroke (in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.00 x 3.48
• Block: . . . . . . . . . . . . . . . . . . . . cast iron with 4-bolt main caps
• Crankshaft: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . nodular iron
• Connecting rods: . . . . . . . . . . . . . . . . . . . powdered metal steel
• Pistons: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cast aluminum
• Camshaft type: . . . . . . . . . . . . . . . . . . . . . . hydraulic flat tappet
• Camshaft lift (in): . . . . . . . . . . . . . . . . .450 intake / .460 exhaust
• Camshaft duration (@.050 in) . . . . . 222° intake / 222° exhaust
• Cylinder heads: . . . . . . . . . . . . . . . . . . . . . iron; 76 cc chambers
• Valve size (in): . . . . . . . . . . . . . . . . . . 1.94 intake / 1.50 exhaust
• Compression ratio: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5:1
• Rocker arms: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . stamped steel
• Rocker arm ratio: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5:1
• Recommended fuel: . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 octane
• Ignition timing: . . . . . . . . . . . . . . . . . . . . . . . . . . . 34° total BTDC
• Maximum rpm: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5100

INSTALLATION NOTES
• Use neutral balance harmonic damper
P/N 12551537
• 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 670-
cfm carburetor P/N 19170092 (not included)
• Does not accept GM Performance Parts roller
lifter assemblies
• Designed for pre-1976 street vehicles or any
off-road vehicle
• Not intended for marine applications
• Pre-1986 style 2-pc rear main seal block
• Recommended use in vehicles with 6,000 GVW
or less