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On Tuesday, November 1st, 2011, at a press conference held notably at 4:40 pm, Mopar revealed several new exciting crate engines, engine upgrade kits and a body in white program.
The Gen III High Output HEMI engine, with 590 horsepower on tap out of the box, is now available under part number P5156139.
Starting with a lightweight aluminum block that shaves more than 100 lbs. from the cast iron version, the Gen III High Output HEMI is professionally built and includes a stout, balanced lower reciprocating assembly that features a forged steel crankshaft with six bolt mains at 2, 3 and 4, and cross-bolted 4-bolt mains at 1 and 5. H-beam style rods are forged steel and coupled to forged 11:1 compression ratio aluminum pistons. Included is a revised windage tray that according to Mopar provides improved oil dispersion and prevent oil aeration by the crankshaft.
The valvetrain starts with a more aggressive roller camshaft with .639 intake and .628 exhaust lift and cylinder heads that feature the latest designs for what Mopar characterized as exceptional flow characteristics.
To help stabilize the valvetrain at high engine rpm, tie bars are available. Cast aluminum valve covers and billet fuel rails also are part of the Gen III High Output engine. The engine is designed to run on premium pump gas with a minimum octane rating of 93.
For the quarter mile racer is an 800 horsepower V10 Competition Series engine, part number P5155872 that is designed specifically for drag racing. Hand assembled to exacting standards by race engine builders, the Competition Series V10 features an aluminum block with aluminum cylinder heads. Designed for the rigors of drag racing and pulling 695 lb. ft. of torque with an operating range of up to 7,000 rpm, these race-calibrated engines include a forged steel crankshaft with forged steel connecting rods and forged aluminum pistons with a compression ratio of 12.5:1. All rotating components have been balanced for maximum performance at the track.
The Competition Series engine includes a JTEC controller with race calibration and engine harness. Designed specifically for drag racing, Mopar promises that future applications will include an off-road and road-race version.