For load lightening, try the new aluminum HEMI Gen III cylinder blocks. Each block is 98 pounds lighter than the cast iron HEMI Gen III version. Mopar has three to choose from—one allowing you to build a 440 cubic inch HEMI. You heard it right. A humongous HEMI Gen III can now be built from a Mopar aluminum block.
Let's start with the new 6.1L HEMI Gen III aluminum block. It's a direct replacement for the cast iron 6.1L block. Then there is a 426 cubic inch version to ramp up the excitement level. The third aluminum block has rough-machined bores that can be taken all the way out to 440 cubic inches. You don't have to go that far. The steel liners can be bored as much or as little as you wish. Imagine the possibilities.
If you want more than humongous, try on a 572 HEMI Gen II . Right out of the box—er, crate— you can use one of these to alter the earth's rotation. Think 660 lb-ft of torque at the flywheel, not to mention 650 horsepower.
And speaking of power and torque, have you ever wished that your 1991–2006 Jeep® Wrangler or Cherokee had more of those good things? Mopar is here to help—with the new 4.7 Stroker long block engine assembly. This is the solution to beef up the very popular Jeep 4.0L inline six for towing, off-roading, rock crawling or high-performance grocery getting.
Let's not forget the Mopar small block crate engines. Mopar has a very strong line up of these, ranging from 340 to 440 cubic inches with power levels to suit any budget. The latest addition is the 408 Magnum. It's got big displacement and big power for the value-conscious enthusiast.
No matter what your taste in crate engines – street, strip or trail – Mopar has a product for you.
Check out what's new here and then go down to your friendly local Mopar Performance store and do some shopping in the power and torque department.
426 HEMI GEN III All-Aluminum Crate EngineMopar is developing this exciting crate engine for future introduction. A prototype lurked under the hood of the Mopar Dodge Challenger 1320 Street Drag Pak Show Car at SEMA. Stay tuned for news from Mopar.
6.1L HEMI Gen III Iron Block Crate Engines
6.1L crate engine with Mopar throttle body P5155067
Mopar fuel rails and engine management system (EMS) with harness
6.1L crate engine with ETC P5155437 Electronic Throttle Control, No engine management system (EMS).
6.1L block P5153816AB Bare iron block, stock bore and stroke
HEMI GEN III Aluminum Blocks*
Lighten your load with one of these lightweight cylinder blocks. Cut as much as 98 pounds compared to cast iron HEMI Gen III blocks.
6.1L Direct Replacement Aluminum Block P5153897
- 103 mm bore (same as stock 6.1L).
- This block will accommodate all of the parts from a 6.1L Gen III HEMI engine.
- 104.775 mm bore (4.125"). Can be over-bored 0.030".
- Semi-finished to 4.140". Can be bored to 4.185".
- Lightweight aluminum gives added performance in more ways than one—better acceleration, braking, vehicle dynamics, weight distribution, you name it. Lighter is better.
- Water jackets have been completely re-designed to accommodate a Siamese bore. Extensive Computational Fluid Dynamics (CFD) studies have been performed to balance thermal conditions for consistent and reliable performance.
- Crankcase clearance designed for a 4.125" stroke crankshaft. A 4.250" stroke will fit with machining around the oil drain backs.
- The main bearing supports as well as the bottom end of the block have been completely redesigned for the additional strength required for a forced induction 440+ cubic inch motor.
- 8620 HR billet steel main caps with four-bolt center caps beef-up the bottom end for severe performance applications.
- Capable of supporting a dry sump package for reduced windage and to allow more engine installation options, including lower vehicle center of gravity.
- Camshaft bearing support area increased to permit the use of a 60 mm roller bearing, if desired.
- Lifter bores can be opened to 1.060" for a bushed-style lifter.
- Additional boss in the front timing chain area for an idler (double roller chain). Additional boss for a front gear drive, plus attachments for a front motor plate.
- All HEMI Gen III dress items fit Gen III
Aluminum Blocks (front cover, oil pan, oil filter
mounting, Front End Accessory Drive (FEAD),
etc.)
New 572 HEMI Gen II Crate Engine
Mopar developed this huge HEMI engine to crank out big horsepower and torque. At least 650 hp and 660 lb-ft of torque are available right out of the crate! We're showing the engine with black cast aluminum valve covers that shout out "572 HEMI" so there is no mistake that this is the baddest HEMI GEN II on the planet. Pictured is Mopar's available Cross-Ram Intake (P5007534) with Holley Carbs (P4452778 and P4452779) and HEMI Air Horns (P5007809). Orange cast aluminum "572 HEMI" valve covers are also available.
New Jeep "4.7L Stroker" Long Block Engine Assembly*
This long block engine assembly includes 4.0L engine block and ported cylinder head, new 3.90 stroke crankshaft, OE rods, new forged dished 21 cc pistons, camshaft, lifters, stamped steel rocker arms, valve springs, pushrods, timing chain, timing gears, high-volume oil pump and pickup.
- 1991–1998 P5155209
- 1999–2006 P5155210
New 408 Magnum® Small Block V-8 Crate Engine*
P5155428
This 4.00" Stroker Magnum® Small Block gives you
big power economically with its high-flow 9.0:1
cast iron cylinder heads and stainless steel
valves topped off with a single-plane M1® 4-bbl
Aluminum Intake Manifold. Includes a Mopar
Electronic Ignition Kit with Distributor. Mopar
recommends the use of a 750 cfm Holley carburetor
(P4349228) and 1-7/8" exhaust headers (not
available through Mopar)
The 340 Six-Pack
Crate Engine P5153526
The new 330 Horsepower 340 crate engine is built
with all new parts, including a 340 block with
four-bolt mains, aluminum "LA" cylinder heads
with 10:1 compression, HD cast crankshaft,
six-pack intake, ignition system, water pump and
stock-style front sump oil pan that will fit in
most muscle cars (carburetors not included).
The 410 Six-Pack Crate Engine P5153527
Nothing shrinks time and distance like cubic
inches and a good induction system. Mopar's new
470 Horsepower 410 Stroker small block has all
the goods for whatever your application. Basic
ingredients include a new 340 block featuring
four-bolt mains, aluminum "LA" heads, high-lift
hydraulic camshaft and a 4.00" Stroker heavy-duty
forged crankshaft. Topped off with a classic
aluminum "Six Pack" intake manifold and Mopar
cast aluminum valve covers (carburetors not
included).
440 Super Commando Crate Engine P5153523
You get big block power and torque in a
small block package with this little giant. It
makes over 530 hp out of a 340 four-bolt-main
siamese block with forged 4.00" stroker crank,
forged pistons and rods, big valves and aluminum
heads and intake manifold.
