CPSRJ350T56 - Chevrolet Performance Ram Jet 350 Engine with T56 6 Speed "$750.00 REBATE"

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

FREE 48 State Shipping!

Limited Time $750.00 Chevrolet Performance Mail in Rebate!

Shipping: FREE 48 State Truck Freight Shipping (International shipping will require freight quote)
Pricing: $11,674.54

Customize Your Item

- Additional Shipping Options -
 * required
Free Shipping!


Limited Time $750.00 Chevrolet Performance Mail in Rebate!

New Connect and Cruise Package

Chevrolet Performance is breaking new ground with the launch of the new Connect-and-Cruise crate powertrain systems. They’re factory-engineered engine-and-transmission combinations that include all the electronic control modules, wiring harnesses and other key components you need with the simplicity of one part number. Our engineers matched the engines and transmissions for optimal performance and durability, so you can wring out all the horsepower from them with total confidence. The specially calibrated controllers are designed for retrofit installation in older vehicles, for easier and quicker installation and operation, without the need for third-party tuning. Each one comes with an installation kit, including flex plates, covers and other important components to keep typical mid-project parts chasing to a minimum.

Engine and Trans Includes:

•12499120 Ram Jet 350 Engine Package with Electronics
•19329795 GM T56 Transmission with shift lever & knob
•GM Bellhousing, flywheel & clutch installation package

Now with NEW MEFI 4 Controller with O2 Sensor!

You may recall the Ram Jet brand from the GM mechanical fuel injection systems of the 1950's. Back then everyone wanted a "fuelie" and today that's even more true. GM Performance Parts has brought back the Ram Jet name with its all new electronic port fuel injection systems for both small-block and big-block Chevy crate engines.

The small-block Ram Jet 350's intake manifold is styled like the Ram Jet of yesterday, but that is where the similarity ends. The all new Ram jet 350 uses state of the art components developed by GM to give you all of the benefits of modern electronic engine management. Who better to fuel inject your hot rod than the people who build 5 million fuel injected cars and trucks per year, including the one in your driveway. Unlike some aftermarket systems, Ram Jet offers great cold starts, hot starts, always ideal air to fuel ratios and exceptional throttle response, power and drivability.

The all new 350 horsepower Ram Jet 350 from GMPP makes it easy to have electronic fuel injection on any vehicle originally equipped with a carburetor. The secret is the industry leading MEFI 4 controller. This new controller fits in the palm of your hand and was originally developed by GM Powertrain for marine applications. MEFI 4 is ideally suited for use in street rods, street machines and sportsman racers. Installation is simple; the Ram Jet 350 is an assembled 350 crate engine with Vortec heads, Ram Jet induction system, wiring harness, MEFI 4 controller, and detailed instructions. Once installed in the vehicle, a user needs only to supply 12V power and fuel. Please note the fuel pump recommendations in the Ram Jet instruction manual.

The Ram Jet 350 has it all, great nostalgic styling, drivability unsurpassed by carburetors or aftermarket fuel injection, power to spare and a hot rod idle that sounds like Woodward Avenue in 1969 all over again! GM Performance Parts is "More Than Just Power" and once you've driven a Ram Jet you'll understand why. The 350 HO is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles. This engine offers great drivability, reliability, and a nice exhaust note.

Power: 350 HP @ 5200 RPM, 400 ft. lbs. of torque @ 3500 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 9.4:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 2-bolt main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Hydraulic Roller Tappet
Cam Lift: .460” Intake / .481” exhaust
Cam Duration @ .050”: 196 deg. Intake / 206 deg. Exhaust
Lobe Separation: 109 Degree
Cylinder Heads: Vortec Cast Iron, 3/8” pressed-in rocker studs
Combustion Chamber: 64cc
Valves: .194” Intake/ 1.50” Exhaust
Rocker Arms: Aluminum Roller, 1.6:1 Ratio
Valve Springs: 10212811
Balance: External
Maximum GM Recommended RPM: 5500
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

Engine Includes:
• Fully GM assembled long block
• Chrome Steel Valve Cover with Chevy Bowtie Logo
• Distributor, Plug Wires and Spark Plugs
• 12498032 GM Performance Fuel Injection System
• 14” Manual Trans Flywheel
• Oil pump, pick-up and oil pan
• Cast Iron Long Style Water Pump
• Passenger Side RH Oil Dipstick and Tube

General Motors limited 2 year / 50,000 mile parts & labor warranty. Click Here to view or download warranty form.

Related Engines:
More Connect & Cruise Engine and Transmission Packages
Pace 350 350HP with MSD EFI

Application List


Shipping Information

  • Item Requires Shipping
  • 596.0 lbs.
  • W30.0000” x H35.0000” x L42.0000”
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

Trusted Specialists GM engine & parts specialists
Located in the USA Owned, operated, & employed
Need Assistance? Call us at 888-748-4655
Mon-Thu 8am-6pm EST
Fri 8am-5:30pm EST
Have a Question Email us and we'll get back to you within 24 hours
Pace B2B