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Mopar selling new race / off-road engines

by David Zatz on

Mopar will offer three aluminum versions based on the popular 6.1-liter block, all of which are up to 98 pounds lighter than the cast-iron production version found in the company’s SRT8® products.

Mopar Hemis

The first all-aluminum option is a 6.1-liter HEMI block, a direct replacement for the factory production cast-iron 6.1-liter HEMI engine block. The second option is prepped for a 426 cubic-inch (~6.9-liter) engine and the third option is an engine-builder’s special or “X Block,” which has rough-machined bores that allow for up to 468 cubic inches (~7.6-liter).

Mopar will continue to sell a broad range of HEMI crate engines including the 6.1-liter V-8, 5.7-liter V-8, 426 cubic-inch V-8, 472 cubic-inch V-8, 528 cubic-inch V-8, plus a new 572 cubic-inch V-8. With 650 horsepower and a monstrous 660 lb.-ft. of torque, the 572 cubic-inch HEMI is the centerpiece of Mopar’s crate engine program.

Mopar also will introduce a new 4.7-liter I-6 Stroker long block, a powerful upgrade for the 4.0-liter I-6 made famous in Jeep vehicles built from 1991-2006. Because off-road enthusiasts appreciated the dependability and performance of the previous 4.0-liter engine, Mopar developed a more powerful engine that delivers an expected 265 hp and 290 lb.-ft of torque. The engine will fit in any Jeep vehicle previously equipped with the 4.0-liter I-6 engine.

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