To be shown at SEMA:



New Crate Engines, Long Blocks and Aluminum HEMI Engine Blocks for Racing or Off-road Applications

Mopar will get racing and off-road enthusiasts buzzing with its enhanced lineup of engines and components, which includes the industry’s first aluminum HEMI® engine blocks. 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.

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).

Beyond the new aluminum HEMI engine blocks, Mopar will continue to support the traditional enthusiast with 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. It continues the heritage of the 1960s HEMI engines made popular in vehicles including the Plymouth Barracuda “HEMI ’Cuda”, Plymouth Satellite and Dodge Charger.

Mopar will also 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.

That's great for the 3G guys, but since were on the aluminum block topic, when is Mopar going to provide an aluminum version of the 340 replacement iron block?

Scott, turn your hand over, and look at your palm. When you start growing hair there, 340 Aluminum blocks from Mopar will be available.
But seriously, I don't think they are interested in any major new developments for LA platforms.
Ran

This is good to see, now they need to do something about the valve spring limitations. Then, these motors will start making some mondo power!

I guess that explains why my beryllium 426 Hemi block is still on backorder.

Old news. Talked with them a while back on that, ask them the price....

Oh I know the words are falling on def ears, I'm used to it, so what's new when it comes to Mopar? It's either back ordered forever, rediculously over priced, or they don't care if you want it and just ignore you. I'm not surprised the givernment took over running a business that way.

468 cu in Gen III Hemi? Giddy up! Our 64 Race Hemi has taken a back seat for the past 5 years when we started our reseach and development on the Gen III Hemi's.

Arlan Vanke told us back in 06 we were on the right track building these new engines cause he believed the new little Hemi was the future in drag racing. Arlan was right and Doug Deull is one of the few proving it.

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Arlan Vanke told us back in 06 we were on the right track building these new engines cause he believed the new little Hemi was the future in drag racing. Arlan was right and Doug Deull is one of the few proving it.

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Tom Hoover told me something similar back in 06 at SEMA, he said the modern Hemi was a more efficient/better design than the genII Hemi which shouldn't be too surprising, he also added that in a Top Fuel applications he doubted the genII would ever lose it's place as the big dog.