12 Days of Christmas
1-800-345-4545
FREE SHIPPING!
Orders Over $95
Same Day Shipping Before 11 PM ET
0
My Cart
$0.00
Shop By Vehicle
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
E-Mail Signup
Catalog Request
Help

Chevrolet Performance 12499120

Ram Jet 350 350ci Engine 351 HP @ 5000 RPM

Chevrolet Performance 12499120

809-12499120

made in usa
jegs shipping
FREE Shipping
Ships Monday if Ordered Today
Chevrolet Performance 12499120 Ram Jet 350 350ci Engine 351 HP @ 5000 RPM $5,930.09
Ram Jet 350 350ci Engine
  • 351 HP @ 5000 RPM
  • 403 ft/lbs Torque @ 3600 RPM

  • Chevrolet Performance 12499120 Details

    INSTALLATION NOTES:
  • Comes with externally balanced, manual transmission flywheel; change to externally balanced flexplate for automatic transmission applications
  • Installer to supply 12-volt power source and fuel
  • See installation instructions for fuel pump recommendation
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • IMPORTANT! For a safe, proper, and trouble-free engine break-in, the MEFI 4 computer has a ''green'' mode that controls rpm during the break-in period. During this period, engine speed is limited to 4000 rpm in the first hour, 4500 rpm in the second hour, and 5500 rpm in the third hour.

  • Specifications:

    Flywheel Included
    Yes
    Wiring Harness Included
    Yes
    Air Cleaner Included
    Yes
    Assembled
    Yes
    Carburetor Included
    No
    Computer Included
    Yes
    Crate Engine Cylinder Head Material
    Cast iron
    Cylinder Heads Included
    Yes
    Distributor Included
    Yes
    Engine Assembly Style
    Long block
    Flexplate Included
    No
    Harmonic Balancer Included
    Yes
    Intake Manifold Included
    Yes
    Oil Pan Included
    Yes
    Quantity
    Sold individually
    Spark Plug Wires Included
    Yes
    Spark Plugs Included
    Yes
    Throttle Body Included
    Yes
    Timing Cover Included
    Yes
    Valve Covers Included
    Yes
    Water Pump Included
    Yes
    Engine Balance
    Internal/External
    Rear Main Seal Style
    1-piece
    Manufacturer's Part Number:
    12499120

    Vintage Style and Modern Performance

    Free Shipping!

    Chevrolet Performance's unique Ram Jet 350 combines the classic look of the original Rochester mechanical injection system with the dependability and optimized performance of contemporary electronic port fuel injection.

    They took their proven 350 Small-Block and topped it with an exclusive port fuel-injection system that emulates the look of Chevy's factory fuel-injection systems from the 1950s and '60s. It's the perfect choice for a resto-mod hot rod from the original Rochester era.

    A brand-new engine block is matched with a durable rotating assembly that delivers a pump-gas friendly 9.0:1 compression ratio, as well as a smooth hydraulic roller camshaft that complements power delivery with a great idle quality. The engine's unique intake manifold and plenum is 9-3/4'' tall, offering plenty of clearance to fit under the hood of most vehicles without modifications.

    The Ram Jet 350 crate engine kit includes a MEFI 4 engine controller, wiring harness and a detailed instruction guide to make adding this retro-style EFI system a complete DIY project. Some additional components are required, including a high-pressure fuel pump and front accessory drive system.

    RAM JET 350 TECH SPECS:
  • Engine Type: Chevy Small-Block V-8
  • Displacement: 350ci
  • Bore x Stroke: 4.000'' x 3.480''
  • Block: Cast-iron with two-bolt main caps
  • Crankshaft: Cast-iron, 1-piece rear main seal
  • Connecting Rods: Powdered metal steel
  • Pistons: Hypereutectic aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .460'' intake / .481'' exhaust
  • Camshaft Duration (@.050 in.): 196° intake / 206° exhaust
  • Cylinder Heads: Vortec cast-iron, 64cc combustion chambers
  • Valve Size: 1.940'' intake / 1.500'' exhaust
  • Compression Ratio: 9.0:1
  • Rocker Arms: Aluminum roller rockers
  • Rocker Arm Ratio: 1.6:1
  • Water Pump: Cast-iron, long-style
  • Distributor: HEI type
  • Spark Plugs and Wires: Included
  • Flywheel: 14'' diameter, 168-tooth (11.000''; 11.850'' clutch diameter)
  • Recommended Fuel: Premium pump
  • Ignition Timing: 34° Total @ 4000 rpm
  • Maximum Recommended RPM: 5200
  • Balanced: External
  • GM Warranty

    Items You Need
    Items You May Also Consider