Restore the Roar

Whether you’re a professional race car builder or a do-it-yourselfer working on a favorite project vehicle, Mopar® factory-engineered performance blocks and crate engines are a great way to re-power your ride. Check out the all-aluminum 426 HEMI® Gen III, the aluminum HEMI® Gen III blocks, the big block 572 HEMI Gen II crate engine and the 4.7L Stroker inline six long block assembly (based on the Jeep® 4.0L engine). These are some of the best products ever developed by Mopar performance engineers.

MODERN MOPAR MUSCLE HEMI GEN III

Lookin’ to modernize your street rod or classic with a modern HEMI? Interested in upgrading your LX-body Dodge Charger’s V-6 engine? Mopar HEMI Gen III crate engines offer a blank canvas so you can kick up your favorite ride any way you see fit.

426 HEMI Gen III Aluminum Block Crate Engine

Mopar’s latest crate engine pays homage to its legendary roots in this all-new aluminum HEMI Gen III. Delivering an impressive 540 horsepower and 530 lb.-ft. of torque, this beast comes with a forged crankshaft, connecting rods and pistons.

Features and Benefits

• 426 cubic-inches in a HEMI Gen III Siamese-bore block (*P5155507)
• All-aluminum cylinder heads and engine block (4.0" stroke, 4.125" bore)
• 8620 HR billet steel main caps with 6-bolt (# 2/3/4) and 4-bolt (# 1/5) caps to beef up the block’s bottom end for severe performance applications
• All HEMI Gen III dress items fit (front cover, oil pan, oil filter mounting, Front End Accessory Drive (FEAD) etc.
• Includes attachments for a front motor plate

6.1L HEMI Gen III Iron Block Crate Engines

Need an easy drop-in replacement for your 2005–2010 SRT8®? This iron block 6.1L HEMI engine delivers 425 horsepower and 420 lb.-ft. of torque right out of the crate. Includes factory wire harness and throttle body.

LIGHTNING FAST ALUMINUM BLOCKS!

Cut as much as 100 lbs. compared to cast iron HEMI Gen III blocks.

6.1L Direct Replacement Aluminum Block *P5153897

• 103 mm bore (same as stock 6.1L)
• Block will accommodate all of the parts from a 6.1L Gen III HEMI engine

426 Aluminum Block *P5155507

• 104.775 mm bore (4.125"). Can be over-bored 0.030"

HEMI Gen III Block *P5153898

• Semi-finished to 4.140". Can be bored to 4.185"

Features and Benefits

• 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.

* Not legal for use on pollution-controlled vehicles or vehicles registered for highway use. Horsepower and torque ratings based on test engines. Ratings may vary on individual engines.

MAXIMUM DISPLACEMENT HEMI GEN II

Derived from the original 426 HEMI, these large-displacement Mopar HEMI Gen II crate engines offer massive power upgrades.

572 HEMI

There is no replacement for displacement! The largest of Mopar’s Gen II lineup—this giant 572-cid HEMI—is rated at 650 horsepower and 660 lb.-ft. of torque. Pictured is Mopar’s available Cross-Ram Intake (P5007534) with Holley Carbs (P4452778 and P4452779) and HEMI Air Horns (P5007809).

Features and Benefits

• Built with all-new components
• Heavy-duty, Siamese-bore cast iron block with cross-bolted mains
• Aluminum cylinder heads
• Black cast aluminum valve covers
• Breathers
• High-performance electronic distributor
• Heavy-duty engine stand and shipping crate

528 HEMI

This huge 528 HEMI cranks out a whopping 640 horsepower and 612 lb.-ft. of torque. Mopar recommends that for maximum performance an 850/900 cfm Holley carburetor and 2 ¼" exhaust headers be used. Engine is shown with available Mopar Cross-Ram Intake (P5007534) with Holley Carbs (P4452778 and P4452779) and HEMI Air Horns (P5007809).

472 HEMI

The 472 HEMI crate engine with increased displacement and power is an impressive step up from the familiar 426 HEMI. Mopar recommends the use of an 850 cfm vacuum secondary Holley carburetor and 2" exhaust headers.

* Not legal for use on pollution-controlled vehicles or vehicles registered for highway use. Horsepower and torque ratings based on test engines. Ratings may vary on individual engines.

SMALL BLOCK SOLUTIONS

Popular upgrades for “LA” and Magnum® engine applications, Mopar designed these powerful small block crate engines to put out maximum horsepower on pump gas.

440 Super Commando

Big block power and cubic inches in a small block package. This engine delivers over 525 horsepower on pump gas and it’s the largest cubic inch displacement offered in a Mopar small block crate engine.

410 Six Pack

Nothing shrinks time and distance like cubic inches and a good induction system. Mopar’s new 410 Stroker small block has all the goods for whatever your application is. Basic ingredients include a new 340 block featuring 4-bolt mains, aluminum “LA” heads, high-lift hydraulic camshaft and a 4.00" Stroker heavy-duty forged crankshaft. Topped off with a sexy aluminum “six pack” intake manifold and Mopar cast aluminum valve covers, the 410 has the right stuff to impress the troops at the drag strip and on cruise nights.

340 Six Pack

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. Pictured with available carburetors – P4349241 center, P4349239 outboard.

INLINE SIX UPGRADE

Mopar ups the performance ante with the 4.7L Stroker—a direct replacement for the Jeep 4.0L I-6.

Need more power and low-end torque out of your Jeep Wrangler or Cherokee inline six-cylinder engine? Mopar’s 4.7L (285 cid) Stroker long block engine assembly—3.935” bore, 3.90” stroke—is the solution to beef up the Jeep 4.0L I-6 for towing, off-roading, or rock crawling.
P5155627 – 4.7L Long Block, 1999–2004 Grand Cherokee and 2000–2006 Wrangler
P5155209 – 4.7L Long Block, 1991–1997 Jeep, 1998 Cherokee
P5155210 – 4.7L Long Block, 2000–2001 Cherokee

Note: Long block engine assembly includes engine block, ported cylinder head, new crankshaft, new forged pistons and performance camshaft.

Check out the Mopar Performance Catalog

The Mopar Performance catalog is chocked full of goodies—everything you need for your next vehicle project. For a complete listing of Mopar Performance parts applications or to download the latest Mopar Performance catalog visit www.mopar.com/performance.