Mopar Performance




Product Image Item Name Model- Price
440 Big Block Cast Iron Siamesed Cross-Bolt Block

440 Big Block Cast Iron Siamesed Cross-Bolt Block

Rough Bored at 4.19". These blocks can be bored to the stock size of 4.25", but are specifically designed to be bored...
P5153944 $3,075.00
Sale: $2,890.50

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440 Wedge Cast Iron Block

440 Wedge Cast Iron Block

2-Bolt Mains, Finish Bored at 4.32". Wedge Blocks feature factory-size bores, water flow between the cylinders (not...
P5153944 $3,075.00
Sale: $2,890.50

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426 Hemi Cast Iron Street Block No Tappet Machining

426 Hemi Cast Iron Street Block
No Tappet Machining

Maintains the original 4.25" bore size while maintaining water flow between the cylinders (non siamesed) for the...
P5153943 $3,485.00
Sale: $3,275.90

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426 Hemi Cast Iron rough bore @ 4.24 lifter bore are finished

426 Hemi Cast Iron rough bore @ 4.24 lifter bore are finished

Cast Iron Siamese-Bore 426 Hemi Blocks give engine builders the flexibility for a larger bore. Blocks can be bored to...
P5153942ad $3,829.00
Sale: $3,599.26

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Aluminum Cylinder Head Assembly (528 Hemi)

Aluminum Cylinder Head Assembly
(528 Hemi)

Hemi® Aluminum Cylinder Heads are interchangeable with the production cast iron head, and offer a weight reduction of...
P5153875 $1,375.00
Sale: $1,292.50

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440 Big Block Cast Iron Siamesed Cross-Bolt Block

440 Big Block Cast Iron Siamesed Cross-Bolt Block

Raised Cam, Rough Bored at 4.498". These blocks can be bored to the stock size of 4.25", but are specifically designed...
P5153871 $5,945.00
Sale: $5,528.85

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426 Hemi Cast Iron Siamese-Bore Block Raised Cam

426 Hemi Cast Iron Siamese-Bore Block
Raised Cam

Rough Bored at 4.498" The Cast Iron Siamesed-Bore 426 Hemi Blocks give engine builders the flexibility for a larger...
P5153867 $5,945.00
Sale: $5,528.85

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426 Hemi Cast Iron Siamesed-Bore Block Rough Bored at 4.498"

426 Hemi Cast Iron Siamesed-Bore Block
Rough Bored at 4.498"

The Cast Iron Siamesed-Bore 426 Hemi Blocks give engine builders the flexibility for a larger bore. These blocks can be...
P5153861 $3,075.00
Sale: $2,890.50

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Max: 1
440 Big Block Cast Iron Siamesed Cross-Bolt Block

440 Big Block Cast Iron Siamesed Cross-Bolt Block

Rough Bored at 4.50". These blocks can be bored to the stock size of 4.25", but are specifically designed to be bored...
P5153860 $3,180.00
Sale: $2,989.20

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Aluminum Commando Cylinder Head 2.02" Intake, 1.60" Exhaust

Aluminum Commando Cylinder Head
2.02" Intake, 1.60" Exhaust

(Small Block, Commando Crate). Small Block high-performance cast aluminum head for pre-Magnum engines is 100%...
P5153849 $898.00
Sale: $853.10

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Monthly Specials For December

Jeep Owner's Bible
Jeep Owner's Bible
$30.00  $27.00

Fuel Pressure Gauge
Fuel Pressure Gauge
$27.37  $23.50

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