Ram Jet 350

Ram Jet 350- Tech Specs

Part Number: 12499120

Engine Type: Chevy Small-Block V-8

Displacement (cu. in.): 350Bore x Stroke (in.): 4.000 x 3.480

Block: Cast-iron with two-bolt main caps

Crankshaft (P/N 10243068): Cast-iron

Connecting Rods (P/N 10108688): Powdered-metal steel

Pistons (P/N 12571703): Hypereutectic aluminum

Camshaft Type (P/N 14097395): Hydraulic roller

Camshaft Lift (in.): .460 intake / .481 exhaust

Camshaft Duration (@.050 in.): 196° intake / 206° exhaust

Cylinder Heads (P/N 12528913): Vortec iron; 64-cc chambers

Valve Size (in.): 1.940 intake / 1.500 exhaust

Compression Ratio: 9.1 nominal

Rocker Arms (P/N 12367346): Aluminum roller style

Rocker Arm Ratio: 1.6

Recommended Fuel: 92 octane

Ignition Timing: Base 10° BTDC, 32° Total

Maximum Recommended rpm: 5500

Balanced: External

Ram Jet 350

SKU: 19417619


Price Starting At $9,759.88

Horsepower: 351 HP @ 5000 RPM

LB-FT Torque: 403 LB-FT @ 3600 RPM TORQUE

9.4:1 compression ratio.
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.

We’ve taken our 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.

We deliver the Ram Jet 350 with the following components to make it easier to install and start:

  • Unique intake manifold and plenum that is 9.75 inches tall — plenty of clearance to fit under the hood of most vehicles without modifications
  • MEFI 4 engine controller
  • Wiring harness
  • Detailed instructions

The bottom end of the engine is our stout 350 with a brand-new block, a hydraulic roller cam, Vortec iron heads, and a pump-gas-friendly A venerable 350 cubic inch small-block combination anchors the Ram Jet 350. It is designed for long-lasting durability and pump-gas compatibility, with Vortec cylinder heads, a hydraulic roller camshaft and 9.4:1 compression.GM Performance Parts delivers the engine with the necessary wiring harness and detailed instructions. It can be installed on any 1976-or-earlier vehicle originally equipped with a carburetor.

Possible Applications*

- Update the Stingray
- Round out any hot rod that needs a little "something" under the hood
- Use it to start a conversation on Friday night

*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. Some applications may not be emission legal; check state and local ordinances.

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice



phone: 780-486-3335

fax: 780-486-7357


Wolfe GMC Buick
18325 Stony Plain Rd NW
Edmonton, T5S 1C6

*Images may be stock photos and may not represent the actual part. Part numbers and prices are subject to change without notice

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