The Texas Speed 426ci Gen III Hemi Long Block is built for turbocharged and supercharged Hemi combinations that need a foundation rated for 2,000 horsepower. It starts with a brand new Callies Gen III Hemi iron block and is assembled with a Callies Magnum 4340 forged steel crankshaft with a 4.050" stroke, Texas Speed billet 4340 Super I-beam 6.125" connecting rods and Mahle 2618 forged flat top pistons at a 4.095" bore with heavy-duty upgraded wrist pins, for 426 cubic inches and a 10.4:1 compression ratio.
On top, Texas Speed installs AFR 224cc Gen III Hemi CNC cylinder heads, its Gen III Hemi Stroker Boost camshaft (238/259 duration, .622"/.618" lift, 120+5 lobe separation and advance) and a Texas Speed Gen III Hemi valvetrain stabilizer kit, along with a Melling high-volume oil pump. The crankshaft uses a 58x reluctor wheel compatible with 2013 and newer Gen III Hemi platforms. Texas Speed states the engine is compatible with 2009 to 2024 Gen III Hemi platforms but is not intended as a drop-in for factory ECU applications; an aftermarket standalone engine management system is highly recommended.
Specifications
- Power rating: 2,000 HP capable per Texas Speed
- Block: Brand new Callies Gen III Hemi iron block
- Displacement: 426 cubic inches (7.0L)
- Compression ratio: 10.4:1
- Crankshaft: Callies Magnum 4340 forged steel, 4.050" stroke
- Connecting rods: Texas Speed billet 4340 Super I-beam, 6.125"
- Pistons: Mahle 2618 forged aluminum, 4.095" bore, flat top
- Wrist pins: Heavy-duty upgraded pins for boosted loads
- Camshaft: Texas Speed Gen III Hemi Stroker Boost cam, 238/259 .622"/.618" 120+5
- Cylinder heads: AFR 224cc Gen III Hemi CNC
- Oil pump: Melling high-volume
- Valvetrain: Texas Speed Gen III Hemi valvetrain stabilizer kit
- Reluctor wheel: 58x, compatible with 2013 and newer Gen III Hemi platforms
- Engine management: Aftermarket standalone system highly recommended; not a drop-in for factory ECU applications
Kit Includes
- Texas Speed 426ci 2000 HP Hemi long block, Callies block (TSP-Hemi426LB-2K-C)
- Royal Purple 10W-30 break-in oil, 14 quarts (RYP-11487)
- Standard duty steel engine cradle for Mopar Gen III Hemi, black powder coat (TSP-ALL10151)
- Long block shipping crate (TSP-SDCrateLB)
Note: Compatible with 2009 to 2024 Gen III Hemi platforms but not intended as a drop-in for factory ECU applications. Texas Speed highly recommends an aftermarket standalone engine management system.
Note: The 58x reluctor wheel is compatible with 2013 and newer Gen III Hemi platforms.
Vehicle Applications
Engine family: Gen III Hemi (6.2L and 6.4L platforms per Texas Speed). Vehicle list limited to 2009 and newer model years per Texas Speed's stated compatibility.
Chrysler 300
- 2009 Chrysler 300
- 2010 Chrysler 300
- 2011 Chrysler 300
- 2012 Chrysler 300
- 2013 Chrysler 300
- 2014 Chrysler 300
- 2015 Chrysler 300
- 2016 Chrysler 300
- 2017 Chrysler 300
- 2018 Chrysler 300
- 2019 Chrysler 300
- 2020 Chrysler 300
- 2021 Chrysler 300
Dodge Challenger
- 2009 Dodge Challenger
- 2010 Dodge Challenger
- 2011 Dodge Challenger
- 2012 Dodge Challenger
- 2013 Dodge Challenger
- 2014 Dodge Challenger
- 2015 Dodge Challenger
- 2016 Dodge Challenger
- 2017 Dodge Challenger
- 2018 Dodge Challenger
- 2019 Dodge Challenger
- 2020 Dodge Challenger
- 2021 Dodge Challenger
- 2022 Dodge Challenger
- 2023 Dodge Challenger
Dodge Challenger Demon
- 2015 Dodge Challenger Demon
- 2016 Dodge Challenger Demon
- 2017 Dodge Challenger Demon
- 2018 Dodge Challenger Demon
Dodge Challenger Hellcat
- 2015 Dodge Challenger Hellcat
- 2016 Dodge Challenger Hellcat
- 2017 Dodge Challenger Hellcat
- 2018 Dodge Challenger Hellcat
- 2019 Dodge Challenger Hellcat
- 2020 Dodge Challenger Hellcat
- 2021 Dodge Challenger Hellcat
- 2022 Dodge Challenger Hellcat
- 2023 Dodge Challenger Hellcat
Dodge Challenger Redeye
- 2015 Dodge Challenger Redeye
- 2016 Dodge Challenger Redeye
- 2017 Dodge Challenger Redeye
- 2018 Dodge Challenger Redeye
- 2019 Dodge Challenger Redeye
- 2020 Dodge Challenger Redeye
- 2021 Dodge Challenger Redeye
- 2022 Dodge Challenger Redeye
- 2023 Dodge Challenger Redeye
Dodge Charger
- 2009 Dodge Charger
- 2010 Dodge Charger
- 2011 Dodge Charger
- 2012 Dodge Charger
- 2013 Dodge Charger
- 2014 Dodge Charger
- 2015 Dodge Charger
- 2016 Dodge Charger
- 2017 Dodge Charger
- 2018 Dodge Charger
- 2019 Dodge Charger
- 2020 Dodge Charger
- 2021 Dodge Charger
- 2022 Dodge Charger
- 2023 Dodge Charger
Dodge Charger Demon
- 2015 Dodge Charger Demon
- 2016 Dodge Charger Demon
- 2017 Dodge Charger Demon
- 2018 Dodge Charger Demon
Dodge Charger Hellcat
- 2015 Dodge Charger Hellcat
- 2016 Dodge Charger Hellcat
- 2017 Dodge Charger Hellcat
- 2018 Dodge Charger Hellcat
- 2019 Dodge Charger Hellcat
- 2020 Dodge Charger Hellcat
- 2021 Dodge Charger Hellcat
- 2022 Dodge Charger Hellcat
- 2023 Dodge Charger Hellcat
Dodge Charger Redeye
- 2015 Dodge Charger Redeye
- 2016 Dodge Charger Redeye
- 2017 Dodge Charger Redeye
- 2018 Dodge Charger Redeye
- 2019 Dodge Charger Redeye
- 2020 Dodge Charger Redeye
- 2021 Dodge Charger Redeye
- 2022 Dodge Charger Redeye
- 2023 Dodge Charger Redeye
Jeep Commander
- 2009 Jeep Commander
- 2010 Jeep Commander
Dodge Durango
- 2009 Dodge Durango
- 2011 Dodge Durango
- 2012 Dodge Durango
- 2013 Dodge Durango
- 2014 Dodge Durango
- 2015 Dodge Durango
- 2016 Dodge Durango
- 2017 Dodge Durango
- 2018 Dodge Durango
- 2019 Dodge Durango
- 2020 Dodge Durango
- 2021 Dodge Durango
- 2022 Dodge Durango
- 2023 Dodge Durango
- 2024 Dodge Durango
Jeep Grand Cherokee
- 2009 Jeep Grand Cherokee
- 2010 Jeep Grand Cherokee
- 2011 Jeep Grand Cherokee
- 2012 Jeep Grand Cherokee
- 2013 Jeep Grand Cherokee
- 2014 Jeep Grand Cherokee
- 2015 Jeep Grand Cherokee
- 2016 Jeep Grand Cherokee
- 2017 Jeep Grand Cherokee
- 2018 Jeep Grand Cherokee
- 2019 Jeep Grand Cherokee
- 2020 Jeep Grand Cherokee
- 2021 Jeep Grand Cherokee
Dodge Ram
- 2009 Dodge Ram
- 2010 Dodge Ram
Dodge Ram 1500 TRX
- 2021 Dodge Ram 1500 TRX
- 2022 Dodge Ram 1500 TRX
- 2023 Dodge Ram 1500 TRX
- 2024 Dodge Ram 1500 TRX
Dodge Ram 2500
- 2009 Dodge Ram 2500
- 2010 Dodge Ram 2500
- 2011 Dodge Ram 2500
- 2012 Dodge Ram 2500
- 2013 Dodge Ram 2500
- 2014 Dodge Ram 2500
- 2015 Dodge Ram 2500
- 2016 Dodge Ram 2500
- 2017 Dodge Ram 2500
- 2018 Dodge Ram 2500
- 2019 Dodge Ram 2500
- 2020 Dodge Ram 2500
- 2021 Dodge Ram 2500
- 2022 Dodge Ram 2500
- 2023 Dodge Ram 2500
- 2024 Dodge Ram 2500
Dodge Ram 3500
- 2009 Dodge Ram 3500
- 2010 Dodge Ram 3500
- 2014 Dodge Ram 3500
- 2015 Dodge Ram 3500
- 2016 Dodge Ram 3500
- 2017 Dodge Ram 3500
- 2018 Dodge Ram 3500
- 2019 Dodge Ram 3500
- 2020 Dodge Ram 3500
- 2021 Dodge Ram 3500
- 2022 Dodge Ram 3500
- 2023 Dodge Ram 3500
- 2024 Dodge Ram 3500
Jeep SRT Trackhawk
- 2018 Jeep SRT Trackhawk
- 2019 Jeep SRT Trackhawk
- 2020 Jeep SRT Trackhawk
- 2021 Jeep SRT Trackhawk
Jeep SRT8
- 2009 Jeep SRT8
- 2010 Jeep SRT8
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What is included in the Texas Speed 426ci Gen III Hemi long block?
The long block includes a new Callies Gen III Hemi iron block, a Callies Magnum 4340 forged 4.050" stroke crankshaft, Texas Speed billet 4340 Super I-beam 6.125" rods, Mahle 2618 forged 4.095" flat top pistons with heavy-duty wrist pins, AFR 224cc CNC heads, the Texas Speed Stroker Boost camshaft, a valvetrain stabilizer kit and a Melling high-volume oil pump. Break-in oil, a Hemi engine cradle and a crate ship with it.
Which vehicles is the 426 Hemi long block compatible with?
Texas Speed states the engine is compatible with 2009 to 2024 Gen III Hemi platforms, including 6.2L and 6.4L applications in Dodge, Chrysler, Jeep and Ram vehicles. It is not intended as a drop-in for factory ECU applications.
Can I run the 426 Hemi long block on the factory ECU?
Texas Speed does not intend this engine as a drop-in for factory ECU applications and highly recommends an aftermarket standalone engine management system for proper tuning and performance with the boost camshaft and 2,000 horsepower rotating assembly.
What are the camshaft specs in the Texas Speed 426 Hemi long block?
The installed camshaft is the Texas Speed Gen III Hemi Stroker Boost cam with 238/259 duration, .622"/.618" lift and a 120+5 lobe separation and advance specification, designed for turbocharged and supercharged builds and paired with AFR 224cc CNC heads and a valvetrain stabilizer kit.
How much power is the 426 Hemi long block rated for?
Texas Speed rates the long block as 2,000 horsepower capable, built around a new Callies iron block, Callies Magnum crankshaft, Texas Speed billet I-beam rods and Mahle 2618 forged pistons with upgraded wrist pins for boosted loads. Actual output depends on the power adder, fuel system and tuning.
Does the 58x reluctor wheel work with 2009 to 2012 Hemi vehicles?
Texas Speed lists the 58x reluctor as compatible with 2013 and newer Gen III Hemi platforms and recommends a standalone engine management system for the engine in any application, so buyers with 2009 to 2012 vehicles should confirm crank signal compatibility with their engine management before ordering.
