ENGINE - GM (19421178)

19421178

Replaces 19355658

ENGINE - GM (19421178)

19421178

Replaces 19355658

Discontinued Product

No Longer Available For Purchase

**Please provide your VIN to ensure accurate fitment
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products
  • Details
  • Also Purchased
  • Additional Info
  • Vehicle Fitment
  • Product Reviews
  • Ask Our Team
  • Warranty & Disclosures
  • Installation Instructions
  • Policies

Details

  • Brand:
    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • SKU: 19421178
  • Description:

    OUR BEST CRATE ENGINE VALUE DELIVERS ALL YOU EXPECT IN A POWERFUL SMALL-BLOCK!
    The most affordable Cheverolet Performance Small-Block crate engine is also our best seller - and it's easy to understand why. The 350/290 Base Small-BIock features four-bolt mains for strength and makes a great economical alternative to rebuilding a tired, two-bolt main core. Use it to re-power your daily driver or drop it in your budget Camaro project!
    Inside the 350/290 Base are quality parts, including a camshaft and durable aluminum pistons that squeeze an 8.5:1 compression ratio. We offer the 350/290 in a base form, allowing you to add the induction and other accessories. That's great for builders swapping over the intake manifold, carburetor and other components when re-powering a vehicle.
    Chevrolet Performance has all the components to build up the 350/290 Base into a high-performance, great-looking street engine, too - from an aluminum intake and carburetor (we recommend the 670-cfm Holley four-barrel, P/N 19170092) to the distributor, water pump and more. Save the time and hassle of rebuilding your old engine by ordering the 350/290 Base and finishing it to your own specifications.
    TECH SPECS
    Part Number: 12499529 / 19355658
    Engine Type: Chevy Small-Block V-8
    Displacement (cu in): 350
    Bore x Stroke (in): 4.000 x 3.480
    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 93422884): 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 93438649): Iron; 76cc chambers
    Valve Size (in): 1.94 intake / 1.50 exhaust
    Compression Ratio: 8.0:1
    Rocker Arms (P/N 10089648): Stamped steel
    Rocker Arm Ratio: 1.5:1
    Recommended Fuel: Regular pump
    Ignition Timing: 34° Total @ 4,000 rpm
    Maximum Recommended rpm: 5,100
    Balanced: Internal
    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 Chevrolet Performance roller lifter assemblies
    • Designed for pre-1976 street vehicles or any off-road vehicle
    • Not intended for marine applications
    • See the Valve Covers section for selection of chrome, polished and aluminum valve covers
    • Pre-1986-style 2-piece rear main seal block
    • Recommended for use in vehicles with 6,000 GVW or less

  • Condition: New
  • Replaces: 12499529, 19355658
  • Sold In Quantity: 1

Auto Parts Express

When it comes to serving our customers, our staff has over 250 years of combined GM parts experience to serve you. Whether you’re looking for a part for your new GM vehicle or a part for a discontinued brand like Pontiac or Saturn, we’ve got the expertise to find the part and get it ready to ship. If you purchase your (19421178) from us, you are guaranteed to receive a genuine OEM part designed and manufactured by GM to fit your specific vehicle. All of our parts and accessories are backed by GM's Part Warranty. If you have a question, a problem, or just need help looking up a part, please Contact Us and we will be happy to help.

If you need more parts, select the brand you are shopping for below:

Buick Parts

Cadillac Parts

Chevrolet Parts

GMC Parts

Hummer Parts

Oldsmobile Parts

Pontiac Parts

Saturn Parts

GM

GM is one of the leaders when it comes to cranking out quality made cars, trucks and SUVs. None of that changes when it comes to OEM parts and accessories on GM Parts Online. Keep you car running GM new with OEM affordable parts and accessories with GM Parts Online.