HEMI EXPERTS OF 20 YEARS

CALL US! (626) 337-3700

Your cart

Your cart is empty

All Engine Internals

SELECT YOUR VEHICLE

1652 Results

Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat
usa

Cometic Rear Main Seal Set: Chrysler / Dodge / Jeep 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L SRT Hellcat

Cometic Gasket
5.0 (1)

Regular price $46.62 $41.96 10% off

Unit price
per 

BBK Performance 85MM Hemi Throttle Body: 5.7L Hemi / 6.1L SRT8 & 6.4L 392 2005 - 2012
BBK Performance 85MM Hemi Throttle Body: 5.7L Hemi / 6.1L SRT8 & 6.4L 392 2005 - 2012
Sold out
usa
Kooks Stage 8 Header Bolt Kit: Fits 05-24 HEMI 5.7L VVT / 6.1L / 6.4L 392 / 6.2L
Kooks Stage 8 Header Bolt Kit: Fits 05-24 HEMI 5.7L VVT / 6.1L / 6.4L 392 / 6.2L
usa

Kooks Stage 8 Header Bolt Kit: Fits Most Chrysler/Dodge/Jeep/Ram (05-20)

Kooks Headers

Regular price $75.80 $68.22 10% off

Unit price
per 

Cometic HP LHS Head Gasket (3.850" Bore, .032" Thick): Fits Chrysler / Dodge / Jeep / Ram (07-26)
Cometic HP LHS Head Gasket (3.850" Bore, .032" Thick): Fits Chrysler / Dodge / Jeep / Ram (07-26)
usa

Cometic HP LHS Head Gasket (3.850" Bore, .032" Thick): Fits Chrysler / Dodge / Jeep / Ram (07-26)

Cometic Gasket

Regular price $91.05 $81.95 10% off

Unit price
per 

Johnson Drop-In Hydraulic Roller Lifters: Chrysler / Dodge / Jeep / Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392 & 6.2L Hellcat / TRX / Trackhawk
Johnson Drop-In Hydraulic Roller Lifters: Chrysler / Dodge / Jeep / Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392 & 6.2L Hellcat / TRX / Trackhawk
usa

Brian Tooley Racing - Johnson GEN III Hemi Drop In Hydraulic Roller Lifter: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing
5.0 (1)

Regular price $913.42 $780.70 15% off

Unit price
per 

BBK Performance 78MM Throttle Body: Chrysler / Dodge / Ram / Jeep 3.6L V6 2011 - 2025
BBK Performance 78MM Throttle Body: Chrysler / Dodge / Ram / Jeep 3.6L V6 2011 - 2025
usa

BBK Performance 78MM Throttle Body: Fits Most Chrysler/Dodge/Jeep/Ram (11-23)

BBK

Regular price $549.99 $499.99 9% off

Unit price
per 

AirAid Throttle Body Spacer: Chrysler 300 / Dodge Challenger / Charger 3.6L V6 2011 - 2023
AirAid Throttle Body Spacer: Chrysler 300 / Dodge Challenger / Charger 3.6L V6 2011 - 2023
Cometic Blower Snout Gasket: Dodge / Jeep / Ram 6.2L Hellcat / 6.2L Trackhawk / 6.2L TRX 2021 - 2025
Cometic Blower Snout Gasket: Dodge / Jeep / Ram 6.2L Hellcat / 6.2L Trackhawk / 6.2L TRX 2021 - 2025
usa

Cometic Blower Snout Gasket: Dodge / Jeep / Ram 6.2L Hellcat / 6.2L Trackhawk / 6.2L TRX 2021 - 2025

Cometic Gasket

Regular price $13.67 $12.31 10% off

Unit price
per 

DeatschWerks 42lb Fuel Injectors: Chrysler / Dodge / Jeep / Ram 2003 - 2025 (5.7L Hemi, 6.1L SRT8, 6.4L 392)
DeatschWerks 42lb Fuel Injectors: Chrysler / Dodge / Jeep / Ram 2003 - 2025 (5.7L Hemi, 6.1L SRT8, 6.4L 392)

DeatschWerks 42lb Fuel Injectors: Fits Most Dodge/Ram (03-24)

Deatschwerks

$373.15

Unit price
per 

Brian Tooley Racing Stage 2 Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
Brian Tooley Racing Stage 2 Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
usa

Brian Tooley Racing VVT Stage 2 Camshaft: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing

Regular price $544.49 $449.99 17% off

Unit price
per 

Fuel Injector Clinic 775cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 775cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic
5.0 (2)

Regular price $864.00 $720.00 17% off

Unit price
per 

Fuel Injector Clinic 650cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 650cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic

Regular price $819.60 $683.00 17% off

Unit price
per 

Cometic HD MLS Exhaust/Header Gasket (LHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)
Cometic HD MLS Exhaust/Header Gasket (LHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)
usa

Cometic HD MLS Exhaust/Header Gasket (LHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)

Cometic Gasket

Regular price $124.93 $112.43 10% off

Unit price
per 

Cometic HD MLS Exhaust/Header Gasket (RHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)
Cometic HD MLS Exhaust/Header Gasket (RHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)
usa

Cometic HD MLS Exhaust/Header Gasket (RHS): Fits Chrysler / Dodge / Jeep / Ram (02-26)

Cometic Gasket

Regular price $124.93 $112.43 10% off

Unit price
per 

Johnson Drop-In Lifters Set (WITH Axle Oiling): Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
Johnson Drop-In Lifters Set (WITH Axle Oiling): Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
usa

Brian Tooley Racing - Johnson GEN III Hemi Drop In Lifter Set With Axle Oiling: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing
5.0 (1)

Regular price $1,118.68 $956.14 15% off

Unit price
per 

DiabloSport inTune i3 Platinum w/ PCM Swap
DiabloSport inTune i3 Platinum w/ PCM Swap
Sold out
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014
DiabloSport Trinity 2 (T2 EX) Programmer / Monitor: Chrysler / Dodge  / Ram 2005 - 2014

DiabloSport Trinity 2 EX Programmer / Monitor: Fits Chrysler Dodge 2005-2014

Diablo Sport

Regular price $818.95 $770.95 6% off

Unit price
per 

Brian Tooley Racing Stage 3 Camshaft: Chrysler / Dodge / Jeep / Ram 6.4L 392 2011 - 2025
Brian Tooley Racing Stage 3 Camshaft: Chrysler / Dodge / Jeep / Ram 6.4L 392 2011 - 2025
usa

Brian Tooley Racing Stage 3 Camshaft: Chrysler / Dodge / Jeep / Ram 6.4L 392 2011 - 2025

Brian Tooley Racing

Regular price $544.49 $449.99 17% off

Unit price
per 

Brian Tooley Racing Truck Norris Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
Brian Tooley Racing Truck Norris Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
usa

Brian Tooley Racing Truck Norris Camshaft: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing

Regular price $544.49 $449.99 17% off

Unit price
per 

Cometic MLX Head Gaskets (4.150" Bore): Dodge / Jeep / Ram 6.2L Hellcat / Demon / Trackhawk / Ram TRX 2015 - 2025
Cometic MLX Head Gaskets (4.150" Bore): Dodge / Jeep / Ram 6.2L Hellcat / Demon / Trackhawk / Ram TRX 2015 - 2025
usa

Cometic MLX Head Gasket (4.150" Bore) (F&R): Fits Dodge / Jeep / Ram 2015-25 w/ Stopper Layer

Cometic Gasket
5.0 (1)

Regular price from $118.16 Up to 10% off

Unit price
per 

Deatschwerks 60lb/hr Fuel Injectors: Chrysler / Dodge / Jeep / Ram 2003 - 2025 (5.7L Hemi, 6.1L SRT8, 6.4L 392)
Deatschwerks 60lb/hr Fuel Injectors: Chrysler / Dodge / Jeep / Ram 2003 - 2025 (5.7L Hemi, 6.1L SRT8, 6.4L 392)
Fuel Injector Clinic 445cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 445cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic

Regular price $750.00 $625.00 17% off

Unit price
per 

Cometic MLX RHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)
Cometic MLX RHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)
usa

Cometic MLX RHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)

Cometic Gasket
5.0 (1)

Regular price $137.84 $124.07 10% off

Unit price
per 

Cometic MLX LHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)
Cometic MLX LHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)
usa

Cometic MLX LHS Head Gasket (4.150" Bore, .054" Thick): Fits Chrysler / Dodge / Jeep / Ram (11-26)

Cometic Gasket
5.0 (1)

Regular price $137.84 $124.07 10% off

Unit price
per 

Brian Tooley Racing PDS Master Camshaft Kit (Roots Supercharger): Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
Master Kit
usa

Brian Tooley Racing GEN III Hemi PDS Camshaft Kit: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing

Regular price $2,721.83 $489.99 82% off

Unit price
per 

Brian Tooley Racing Stage 1 Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
Brian Tooley Racing Stage 1 Camshaft: Chrysler / Dodge / Jeep / Ram 5.7L Hemi 2009 - 2025
usa

Brian Tooley Racing VVT Stage 1 Camshaft: Chrysler / Dodge / Jeep 5.7L Hemi 2009 - 2023

Brian Tooley Racing

Regular price $544.49 $449.99 17% off

Unit price
per 

Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025
usa

Cometic MLS Head Gaskets (4.100" Bore): Chrysler / Dodge / Ram / Jeep 5.7L Hemi 2003 - 2025

Cometic Gasket

Regular price from $96.54 Up to 36% off

Unit price
per 

DiabloSport Predator 2 Tuner: Dodge Ram / Ram / Durango / Dakota 2005 - 2018 (V6 & V8 Models)
DiabloSport Predator 2 Tuner: Dodge Ram / Ram / Durango / Dakota 2005 - 2018 (V6 & V8 Models)
Sold out

Diablo Sport Predator 2 Tuner: Fits Dodge Ram/Durango/Dakota 1998-2014 V6 & V8

Diablo Sport
5.0 (2)

Regular price $532.95 $312.95 41% off

Unit price
per 

Fuel Injector Clinic 1200cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
Fuel Injector Clinic 1200cc Fuel Injectors: Chrysler / Dodge / Ram / Jeep Hemi & SRT 2003 - 2025
usa

Fuel Injector Clinic 1200cc Fuel Injectors: Chrysler / Dodge / Jeep Hemi & SRT 2003 - 2023

Fuel Injector Clinic

Regular price from $1,077.00 Up to 17% off

Unit price
per 

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.

SELECT YOUR VEHICLE