Dynamite really can come in small packages. Edelbrock's 350 c.i.d. Performer RPM EFI E-Tec crate engines are the pavement-ripping proof of it. How about 440 hp and 425 ft.-lbs. of torque? Despite that, their 9.5:1 compression means that they should run just fine on the gasoline from your neighborhood station. The RPM 2204 cam has an 0.539 in. intake lift and an 0.548 in. exhaust lift. The intake duration at 0.050 in. lift is 234 degrees, and the exhaust is 238. Since this cam is matched to the 9.5:1 compression ratio, manifold, and carburetor, these engines deliver impressive power from 1,500 rpm all the way up to 6,500 rpm. There are big differences between these engines and the other Performer RPM engines, however. Instead of an Edelbrock carb and intake manifold, you get a complete, driver-tunable Pro-Flo electronic fuel injection system, much of which is manufactured for Edelbrock by Magnetti Marelli. These are speed/density-type systems that control both the fuel and the spark to deliver crisp throttle response throughout the rev range, smooth operation, improved cold starting, and great fuel economy. Best of all, the digital calibration module that's a standard part of the systems allows you to tweak the tuning right from the driver's seat--without a laptop.
Additional features include:
* Brand new GM ZZ 350 4-bolt-main block
* Forged steel crank
* Powdered-metal connecting rods
* Flat-top hypereutectic aluminum pistons
* RPM E-Tec aluminum cylinder heads with Vortec-style intake and exhaust ports that flow 20 percent better than cast-iron Vortec heads
* Guideplates
* Stainless steel valves (1.94 in. intake, 1.55 in. exhaust)
* RPM hydraulic roller cam
* Crane-manufactured, red-anodized aluminum roller rocker arms (1.5:1 ratio)
* Victor series aluminum water pump
* Edelbrock aluminum valve covers with a special badge
* Super-strong ARP head bolts
* MSD Pro-Billet HEI distributor specifically designed for these engines
* One-piece rear main seal
* 8 in. harmonic balancer
* Oil pan
* High performance oil pump
* Milodon timing cover
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