HEMI EXPERTS OF 20 YEARS

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All Engine Internals

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1652 Results

Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
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Cometic MLS Exhaust Manifold / Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008

Cometic Gasket

Regular price $44.19 $39.77 10% off

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DiabloSport Predator 2 Tuner PLATINUM: 300 / Challenger / Charger / Magnum 2005 - 2014 (V6, Hemi, SRT)
DiabloSport Predator 2 Tuner PLATINUM: 300 / Challenger / Charger / Magnum 2005 - 2014 (V6, Hemi, SRT)
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DiabloSport Predator 2 Tuner: 300 / Challenger / Charger / Magnum 2005 - 2014 (V6, Hemi, SRT, ScatPack & Hellcat)
DiabloSport Predator 2 Tuner: 300 / Challenger / Charger / Magnum 2005 - 2014 (V6, Hemi, SRT, ScatPack & Hellcat)
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Diablo Sport Predator 2 Tuner: Fits Dodge 2003-2014 V6, Hemi, SRT, ScatPack, Hellcat

Diablo Sport
5.0 (1)

Regular price $532.95 $369.00 31% off

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Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
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Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010

Cometic Gasket

Regular price from $96.54 Up to 10% off

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Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
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Cometic Oil Pan Gasket w/ Windage Tray: Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010

Cometic Gasket

Regular price $103.16 $92.84 10% off

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Manley Performance Race Flo Intake Valves (Set of 8): Fits most Hemi 6.1L
Manley Performance Race Flo Intake Valves (Set of 8): Fits most Hemi 6.1L
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Manley Performance Race Flo Intake Valves (Set of 8): Fits Most Chrysler/Dodge/Jeep 6.1L SRT8 (05-08)

Manley Performance

Regular price $264.61 $198.46 25% off

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Manley Performance 1.625" Triple Groove Race Master Exhaust Valve Set (F&R): Fits 6.1L HEMI 2005-2010
Manley Performance 1.625" Triple Groove Race Master Exhaust Valve Set (F&R): Fits 6.1L HEMI 2005-2010
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Cometic Street Pro Top End Gasket Kit (4.125" Bore): Fits Chrysler / Dodge / Jeep (05-10)
Cometic Street Pro Top End Gasket Kit (4.125" Bore): Fits Chrysler / Dodge / Jeep (05-10)
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Cometic Street Pro Top End Gasket Kit (4.125" Bore): Fits Chrysler / Dodge / Jeep (05-10) 6.1L

Cometic Gasket

Regular price $315.25 $293.19 7% off

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Cometic MLX Head Gasket (4.10" Bore, .054" Thickness): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
Cometic MLX Head Gasket (4.10" Bore, .054" Thickness): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010
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Cometic MLX Head Gasket (4.10" Bore, .054" Thickness): Chrysler / Dodge / Jeep 6.1L SRT8 2006 - 2010

Cometic Gasket

Regular price $137.84 $124.06 10% off

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Cometic HT Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
Cometic HT Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008
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Cometic HT Header Gaskets (Pair): Chrysler / Dodge / Jeep 5.7L Hemi 2003 - 2008

Cometic Gasket
5.0 (1)

Regular price $44.71 $40.25 10% off

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Fast Hemis One-Click Stage 2 Kit: 2005-2010 Chrysler 300 6.1L SRT8 (+70HP)
American Racing Headers Cat-Back Exhaust System: Chrysler 300C / Charger / Magnum 2005 - 2014 (5.7L / 6.1L / 6.4L)
Stage 2

Fast Hemis One-Click Stage 2 Kit: 2005-2010 Chrysler 300 6.1L SRT8 (+70HP)

FastHemis

Regular price $4,071.79 from $3,678.64 Up to 10% off

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Fast Hemis One-Click Stage 2 Kit: 2005-2010 Chrysler 300 5.7L Hemi (+70HP)
aFe MACH Force-Xp Cat-Back Exhaust (Polished Tips): Dodge Magnum 5.7L / Chrysler 300C 5.7L / Charger 5.7L (05-10)
Stage 2

Fast Hemis One-Click Stage 2 Kit: 2005-2010 Chrysler 300 5.7L Hemi (+70HP)

FastHemis

Regular price $3,394.82 from $3,216.30 Up to 5% off

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Cometic StreetPro Bottom End Gasket Kit (FRONT): Dodge 6.1L HEMI 2005-2010
Cometic StreetPro Bottom End Gasket Kit (FRONT): Dodge 6.1L HEMI 2005-2010
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Cometic StreetPro Bottom End Gasket Kit (FRONT): Dodge 6.1L HEMI 2005-2010

Cometic Gasket

Regular price $226.11 $210.28 7% off

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NGK Direct Ignition Coil Boot: Fits Most Chrysler / Dodge Models (1998-2010)
NGK Direct Ignition Coil Boot: Fits Most Chrysler / Dodge Models (1998-2010)
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NGK Direct Ignition Coil Boot: Chrysler 300 / Dodge Magnum 05 3.5L/2.7L

NGK

Regular price $14.34 $5.95 59% off

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NGK Direct Ignition Coil Boot: Fits Most Dodge / Chrysler Models (2002-2010)
NGK Direct Ignition Coil Boot: Fits Most Dodge / Chrysler Models (2002-2010)
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NGK Direct Ignition Coil Boot: Fits Most Chrysler/Dodge/Jeep 5.7L Hemi (03-05)

NGK

Regular price $13.52 $5.61 59% off

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NGK Direct Ignition Coil Boot: Fits Most Chrysler / Dodge Models (2005-2010)
NGK Direct Ignition Coil Boot: Fits Most Chrysler / Dodge Models (2005-2010)
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NGK Direct Ignition Coil Boot: Fits Most Chrysler/Dodge 3.5L/2.7L (06-10)

NGK

Regular price $32.73 $13.58 59% off

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Yukon Gear & Axle Pinion Nut: Fits Most Chrysler / Dodge Models (2005-2014)
Yukon Gear & Axle Pinion Nut: Fits Most Chrysler / Dodge Models (2005-2014)
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Yukon Gear & Axle Pinion Nut: Fits Most Chrysler/Dodge (05-13)

Yukon Gear & Axle

$64.89

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Victor Reinz Water Outlet Gasket: Fits Most Chrysler / Dodge Models (2005-2010)
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aFe 90mm Throttle Body Kit: Dodge Challenger / Charger / Chrysler 300 5.7L / 6.1L / 6.4L (05-14)
aFe 90mm Throttle Body Kit: Dodge Challenger / Charger / Chrysler 300 5.7L / 6.1L / 6.4L (05-14)
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aFe 90mm Throttle Body Kit: Fits Most Chrysler/Dodge/Jeep/Ram 6.4L/6.1L/5.7L (05-13)

aFe

$497.00

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5.7L Hemi, 6.1L Hemi, 3.5L V6, 2.7L, 3.6L V6, 6.4L Hemi
Edelbrock Intake Manifold Gaskets Pair: Fits 05-10 6.1L HEMI
Edelbrock Intake Manifold Gaskets Pair: Fits 05-10 6.1L HEMI
Cometic MLS Head Gasket .070in Bore w/ Viton: Fits Chrysler / Dodge / Jeep 6.1L Gen-3 Hemi (05-10)
Cometic MLS Head Gasket .070in Bore w/ Viton: Fits Chrysler / Dodge / Jeep 6.1L Gen-3 Hemi (05-10)
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Cometic MLS Head Gasket .070in Bore w/ Viton: Fits Chrysler / Dodge / Jeep 6.1L Gen-3 Hemi (05-10)

Cometic Gasket

Regular price $156.31 $140.68 10% off

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Cometic Gasket MLS Head Gasket 6.1L HEMI 4.100" Bore .092" Thickness: Fits most Hemi 6.1L
Cometic Gasket MLS Head Gasket 6.1L HEMI 4.100" Bore .092" Thickness: Fits most Hemi 6.1L
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Cometic Gasket MLS Head Gasket 6.1L HEMI 4.100" Bore .092" Thickness: Fits most Hemi 6.1L

Cometic Gasket

Regular price $169.17 $152.26 10% off

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per 

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Essential Engine Internals for Chrysler, Dodge, Ram & Jeep Hemi Builds

Upgrading your engine internals is key to building a durable, high-performance Hemi platform. Whether you’re aiming for a dependable daily driver or a boosted race engine, the right components ensure your build can handle increased power and demanding conditions with confidence.

Why upgrade your engine internals on a Hemi?

Stock engine internals are designed for factory power levels and daily reliability, but pushing your Hemi beyond those limits requires stronger, more precise components. Upgraded pistons, rods, and camshafts improve strength and valvetrain control, reducing the risk of failure under boost or high RPM. This helps maintain engine integrity and extends the life of your build.

  • Improved durability under increased power and boost
  • Better valvetrain timing and control for performance gains
  • Enhanced reliability for street or track use

What should I look for in performance engine internals?

Choosing the right internals depends on your build goals and engine platform. High-strength forged pistons and rods are essential for boosted or high-horsepower applications. Precision-ground camshafts optimize valve timing for improved power delivery. Durable bearings and gasket kits ensure proper sealing and reduce wear. Matching these components to your specific Hemi engine and intended use is critical for a balanced, reliable build.

Building a reliable Hemi engine for boost – key considerations

When building a boosted Hemi, focus on components that handle increased cylinder pressures and heat. Upgrading your internals is just one part of the equation—proper assembly, break-in procedures, and tuning are equally important. Shop FastHemis for quality engine internals designed specifically for Chrysler, Dodge, Ram, and Jeep Hemi platforms to support your performance goals with confidence.

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