MOPAR PERFORMANCE 
BLOCKS & RELATED COMPONENTS

 

HEMI

hemi block

HEMI CAST IRON HEMI SIAMESE-BORE BLOCKS

Cast Iron Siamese-Bore 426 Hemi Blocks give engine builders the flexibility for a larger bore. Blocks can be bored to the stock size of 4.25", but are specifically designed to be bored larger. Mopar recommends that you sonic check each block if you plan to exceed as shipped bore diameters.

 

P5155072

Block, Cast Iron, 426 Hemi, Siamese-bore, Finished Bored at 4.25"

 $ 2,849.00

P5153862

Block, Cast Iron, 426 Hemi, Siamese-bore, Finished Bored at 4.50"

 $ 2,849.00

P5153942

Block, Cast Iron, 426 Hemi, Siamese-bore, Rough Bored at 4.24"

 $ 2,795.00

P5153943

Block, Cast Iron, 426 Hemi, Siamese-bore, Rough Bored at 4.24", Tappet machining Deleted

 $ 3,095.00

P5153861

Block, Cast Iron, 426 Hemi, Siamese-bore, Rough Bored at 4.49"

 $ 2,795.00

 

HEMI ALUMINUM HEMI SIAMESE-BORE BLOCKS

Cast from 356 T-6 aluminum. Extra wall thickness in critical areas.

 

P5155016

Block, Aluminum, 426 Hemi, Siamese-bore, Finished Bored at 4.49"

 $ 5,595.95

P5153864

Block, Aluminum, 426 Hemi, Siamese-bore, Finished Bored at 4.50"

 $ 5,695.95

 

BIG BLOCK

BB Block

BIG BLOCK CAST IRON SIAMESE-BORE BLOCKS

Mopar Siamese-bore Big Blocks are specifically designed to be bored larger. Mopar still recommends that you sonic check each block if you exceed as-shipped bore diameters.

P5153860

Block, Cast Iron, 440 Wedge, Siamese-Bore, Finished Bored at 4.50"

 $ 2,849.95

P5153944

Block, Cast Iron, 440 Wedge, Siamese-Bore, Rough Bored at 4.31"

 $ 2,795.95

P5153863

Block, Cast Iron, 440 Wedge, Siamese-Bore, Rough Bored at 4.49"

 $ 2,795.95

BIG BLOCK ALUMINUM WEDGE BLOCKS

Cast from 356 T-6 aluminum. Extra wall thickness in critical areas.

P5153868

Block, Aluminum, Wedge, Siamese-bore, Finished Bored at 4.50"

 $ 5,695.95

P5155017

Block, Aluminum, Wedge, Siamese-bore, Rough Bored at 4.49"

 $ 5,595.95

 

SMALL BLOCK

Mopar small block short block assemblies

SMALL BLOCK 360 SHORT BLOCK ASSEMBLIES
These Short Block Assemblies are built with all-new components including block, crankshaft, connecting rods, pistons and camshaft bearings. Does not include camshaft, timing cover or timing set.

P5153907

Block, Short Assembly, 4.000" Bore, 3.580" Stroke, 5.9L Magnum/ 360 "LA"

 $ 4,449.95

P5153908

Block, Short Assembly, 4.040" Bore, 3.310" Stroke, 340 "LA"

 $ 4,949.95

P5153909

Block, Short Assembly, 4.040" Bore, 4.000" Stroke, 410 "LA", Stroker 340

 		$ 8,895.95

P5153910

Block, Short Assembly, 4.185" Bore, 4.000" Stroke, 440 "LA", Stroker 340

 		$ 8,949.95

P5155197

Engine Assembly, 5.9L, Package Car Service Part

 $ 12,899.95

Note: Crate engines that change the emissions performance of the vehicle may not be legal for use on vehicles regulated for highway use in California and other states.

 

magnum block

SMALL BLOCK HP MAGNUM &"LA" BLOCKS

Magnum and "LA" Blocks are designed for general high performance use and entry level racing. Ready for assembly without the need for any additional machining. Bored and honed to standard bore size. Camshaft Bearings and freeze plugs installed in block. Hardware kit included. Ductile Iron Main Caps with ARP bolts (four-bolt on the center three caps). Dual motor mounts with "LA" and Magnum mounts (must use late 1970s 318 mount for left side). Heavy duty casting with thicker deck and bore walls. Works with all stock-style engine components. P5153452 & P5153579 work with Magnum stock-style Hydraulic Roller Camshafts (required tappet retainer kit P5155275). Not recommended for use with aftermarket tie bar style mechanical roller tappets. Siamese Bore (all except P5007552AB) allows up to 4.220" bore size. Standard deck height - 9.600". Setup for wet sump oiling system with oil drain holes in the valley. Magnum blocks can also be used for "LA" applications with dual oiling system provisions (LA oil passages to heads or Magnum oiling through pushrods, and flat tappet or hydraulic roller cams). MPI provisions for Magnum crank trigger. 59° Tappet Bore works with all stock-style cylinder heads and camshafts. P5153579 requires use of 318/340 "LA" oil pan (stock 5.2L Magnum oil pan will not fit).

P5153478AB

Block, Cast Iron, 340 Replacement, Siamese-bore, 4.040" Finished Bore

 $ 2,849.95

P5153743

Block, Cast Iron, 340 Replacement, Siamese-bore, 4.175" Rough Bore

 $ 2,849.95

P5007552AB

Block, Cast Iron, 340, Non-Siamese-bore, 4.040" Finished Bore

 $ 2,849.95

P5153579

Block, Cast Iron, Race, 5.2L Magnum/318 "LA", Siamese-bore, 3.910" Finished Bore

 $ 2,995.95

P5153452

Block, Cast Iron, Race, 5.9L Magnum/360 "LA", Siamese-bore, 4.000" Finished Bore

 $ 2,849.95

P5153908

Block, Short Assembly, 4.040" Bore, 3.310" Stroke, 340 "LA"

 $ 4,949.95

 

 

SMALL BLOCK CAST IRON "R3" RACE ENGINE BLOCKS

Building on our heritage, the R3 race block family offers the latest in design technology along with the options to meet your specific needs. All of these blocks feature:  Process-controlled castings utilizing high-strength cast iron and a computer-controlled stress relieving process, 100% CNC machining with full statistical process control, Thick deck surface and six-bolt cylinder head attachment (48° blocks) for improved sealing and reliability, Various options that provide deck height potentials of 8.900" to 9.600", Tappet angles in both 59° (stock) and 48° are available (improved valve train geometry) (59° blocks are not recommended for use with roller tappets), Thicker main webbing and pan rail for improved rigidity, Four-bolt mains in ductile iron, billet, 318/340 main journal size, Machined for "LA" or Magnum head oiling, as well as engine mounts.

P5153478AB

Block, Cast Iron, 340 Replacement, Siamese-bore, 4.040" Finished Bore

 $ 2,849.95

P4876671AD

Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough Bore

 $ 2,649.95

P4876673AD

Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough Bore

 $ 2,649.95

P4876791AD

Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough Bore

 $ 2,649.95

P4876381AB

Block, Cast Iron, Race, "R3", Siamese-bore, 4.050" Rough Bore

 $ 3,695.95

 

 

ENGINE BLOCK COMPONENTS

 

REAR MAIN BEARING RETAINER SEAL KIT
Kit contains engine rear main seal retainer, retainer bolts and seal package.
P4529732 Rear Main Bearing Seal Retainer Kit (426 Hemi® and Big Block)

$ 89.95

 

 

OIL SEAL PACKAGE
Oil Seal Package includes crank seals and installation tool.
P4271961 Oil Seal Package (426 Hemi® and Big Block)

$ 10.95

 

 

BLOCK HARDWARE PACKAGE
 This Block Hardware Package includes all necessary dowels, plugs, bushings and keys, as well as core plugs, rear cam bearing plug, drive gear bushing and head dowels.
P5249259AB Block Hardware Package (426 Hemi® and Big Block; for use w/ Original style Hemi Blocks) $ 109.95
P5155034 Block Hardware Package (for use w/ new B/RB, Hemi & Wedge Engine Blocks) $ 34.95
P5249261  Block Hardware Package (Small Block) $ 35.95

 

 

FREEZE PLUGS
These round, press-in engine block Freeze Plugs fit standard or Mopar Performance race cast iron blocks.
P5249708 Brass Freeze Plugs (426 Hemi® and Big Block) $ 25.95
P5249706 Brass Freeze Plugs (Small Block) $ 25.95

 

 

ENGINE TEARDOWN GASKET SETS
Includes all gaskets needed for bearing, bore, or cylinder head or race inspection teardown. Includes oil pan, cylinder head, valve cover, chain case cover, intake manifold, and oil pump gaskets.
P4120692 340-360 Small Block $ 99.95
P3690850 383 & 400 Big Block $ 69.95
P3690175 426 Wedge & 440 Big Block $ 71.95
P4452112 383 & 400 Big Block $ 149.95
P4452113 426 Wedge & 440 Big Block $ 149.95
P3412083 66 & Newer 426 Hemi $ 106.95

 

DOUBLE ROLLER TIMING CHAINS AND SPROCKET SETS
 High strength double roller for added durability and decreased rotational friction versus the production silent-chain. Magna-fluxed to ensure reliable performance.

P5249267 Small Block, 5.2L/5.9L Magnum/Jeep Engines - One Bolt Mount - Roller - Double - w/ 3 Matched Keyways  $ 61.95
P5249268 B/RB Big Block & Hemi - One Bolt Mount - Roller $ 99.95
P5249269 B/RB Big Block & Hemi - Three Bolt Mount - Roller - Double $ 89.95
ALL OUR RACE TIMING CHAINS & SPROCKETS
Matched sprockets and double roller chain for all-out race applications. Kits feature three matched keyways to adjust cam timing. Includes magna-fluxed sprockets and roller timing chains.
P4876559 Small Block - 0.005" Oversize, Race $ 179.95
P4876560 Small Block - 0.010" Oversize, Race $ 189.95
P3690866 Small Block - Standard Size, Race $ 169.95
P5249131

Small Block - Chain - One Bolt Mount - Roller - Double - Replacement - Cloyes Race Application

 $ 54.95
P4452815 Big Block & Hemi - All Out Race - Three Bolt Mount - Roller - Standard $ 114.95

EG-TD9392 shown

CHROME PLATED FRONT TIMING CHAIN COVERS
Chrome-Plated Front Timing Chain Cover and Indicator.
EG-TD9392 Chrome-Plated Front Timing Chain Cover (1968-91 426 Hemi® and All Big Block) $ 43.95
P4876631 Sand Cast Race Timing Chain Cover — 9.00"-9.20" Deck, Standard Water Pump (Small Block, V6) $ 589.95
P4876632 Sand Cast Race Timing Chain Cover — 9.00"-9.20" Deck, Race Water Pump/Front Motor Plate $ 429.95
P5249930AB Production Timing Chain Cover — 9.560" Deck, Non-Chrome (Small Block and V6) $ 129.95

 

 

P4529256 shown

CHROME BOLT PACKAGE FOR FRONT TIMING COVER
Engine chrome dress-up projects are incomplete without chrome bolts.
P4452795 Chrome Bolt Package for Front Timing Cover (426 Hemi® and Big Block) $ 24.95
P4529256 Chrome Bolt Package 1969-92 "A" Engine $ 39.95

 

 

 

FRONT TIMING COVER GASKET & SEAL
P4876280 Front Cover Seal (426 Hemi®, Big Block, Small Block) $ 13.95
P4876769 Front Cover Gasket (426 Hemi® and Big Block) $ 8.95

 

 

TIMING CHAIN TENSIONER
This Timing Chain Tensioner stabilizes cam timing by reducing timing chain slack. It can be used in place of thrust plate P5249637.
P5007709 Timing Chain Tensioner (Small Block and 3.9L, 5.2L, 5.9L Truck Magnum/Jeep® Engines)

$ 32.95

 

 

FORGED STEEL CONNECTING RODS

These durable connecting rods are forged from 4340 super high strength steel as a single piece. Includes nut and bolt.
P5249898 Hemi engine - floating pin 6.86" center to center

$ 124.95

 

 

FORGED ALUMINUM PISTONS
This forges aluminum piston features valve notches and floating pin. Top & second rings measure 1/16", while oil ring measures 3/16". 
P4876026 Hemi Forged Aluminum Piston

$ 79.95

 

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