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1970 Chevelle Chevy 350 - Goodmark Chevelle Project Car-Part 6

Beneath The Flamed Hood

Photography by Barbara Hillick

Since we are halfway through the build-up of the Goodmark Chevelle, we thought we'd take a minute to reflect upon and realize what has been put into this car-and what the end result is starting to look like. This simply is not your average project/give-away machine. Not only has the workmanship been above and beyond stellar, but the parts that have been used-from the Goodmark body panels to the Hotchkis suspension components and everything in-between-have all played a huge part in making this Chevelle a real-life, high-end street rod. And just think, we've only seen the first half.

As you'll see in the next few pages, a major step towards cruisin' down the road is about to take place. We knew that this project should receive good, solid, reliable power and utilize today's technology. With this in mind and realizing the scope of this project, GM Performance Parts was happy to provide the nostalgic-appearing, yet technologically advanced 350ci Ram Jet fuel-injected long-block (PN 12495515). This GM small-block uses Vortec heads (PN12558060), high-silicon aluminum pistons (PN12522850), Roller Tappet camshaft (PN 14097395) with aluminum roller rocker arms (PN 12367346). The best part is you can order any of these parts to build your own Ram Jet 350, or order the motor complete at any GM dealer. To back this 350hp engine is a Hughes Performance 700-R4. Hughes is more than well-known in the street and strip world for building strong, reliable manual and automatic transmissions for more than 30 years.

While the engine was on the ground, the boys at Metal Finish USA had a good chance to trial-fit the March Performance alternator, A/C, and power steering brackets and components. The headers, motor and trans mounts and flywheel, torque converter, and 700-R4 were also mounted and readied for their new home. As you will soon see, everything fit just like it should, so the only thing left to do is to stop talking about it and show you.

Next month we will bring you the installation of the fuel lines, transmission lines, brake lines, driveshaft, and exhaust-oh yeah, the body might just finally be bolted into place.

Ram Jet 350
Technical Information
350 @ 5,200 rpm
400 @ 3,500 rpm
Max. Recommended RPM
Compression Ratio
Block two-bolt, cast iron
10243068 cast iron
Connecting Rods
10108688 PM rods
12522850 high-silicon aluminum with offset pins
Piston Rings
14097395 roller-tappet design
Intake Manifold
1104060 HEI
Cylinder Heads
12558060 Vortec
Intake Valves
10241743 1.94 inch
Exhaust Valves
12550909 1.50 inch
Valve Springs
Rocker Arms
12367346 Aluminum roller design
Valve Lash
Spark Plugs
MR 43LTS Gap @ .045
Rapidfire #8 @ .035
R42 LTS @ .045
92 Octane
Ignition Timing
10 degrees BTDC @ 700 rpm

Goodmark Industries
625-E Old Norcross Rd.
GA  30045
Huges Performance
2244 W. McDowell Road
AZ  85009
Flowmaster Inc.
2975 Dutton Ave.
Santa Rosa
CA  95407
Energy Suspension
1131 Via Callejon
San Clemente
CA  92673
GM Performance Parts
Metal Finish USA
7314 Highway 115E
GA  30528
March Performance Pulleys
6020 Hix Rd.
MI  48185
Pro-Form Specialty Auto Parts
PO Box 306
MI  48066
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