The Texas Speed 426ci Gen III Hemi 2,000 HP Balanced Rotating Assembly is the crank, rod and piston package Texas Speed builds for its highest-output Hemi engines, sold as a balanced kit for a 6.2L or 6.4L Gen III Hemi block. It is rated by Texas Speed to handle up to 2,000 horsepower and is aimed at forced induction builds and high-rpm naturally aspirated combinations alike.
The assembly starts with a Callies Magnum 4.050" stroke forged crankshaft compatible with 2013 and newer reluctor engines, Texas Speed billet 4340 Super I-Beam rods at 6.125" and custom Mahle 2618 forged pistons with a 0cc dome for a 4.095" bore and upgraded wrist pins. The pistons use an anodized top ring groove to resist micro-welding under extreme cylinder pressure and a 1.5 mm steel top, 1.0 mm second and 2.0 mm oil ring pack. Every kit is digitally spin balanced on the Texas Speed CWT balancer before shipping. It is not compatible with 5.7L Hemi blocks.
Specifications
- Displacement: 426 cubic inches
- Block compatibility: Aftermarket or factory 6.2L and 6.4L Gen III Hemi blocks only, not 5.7L
- Power rating per Texas Speed: Up to 2,000 horsepower
- Crankshaft: Callies Magnum 4.050" stroke forged, compatible with 2013+ reluctor engines
- Connecting rods: Texas Speed billet Super I-Beam, 6.125", forged 4340 steel
- Pistons: Custom Mahle 2618 forged, 0cc dome, 4.095" bore, upgraded wrist pins
- Top ring groove: Anodized to resist micro-welding
- Ring pack: 1.5 mm steel top ring, 1.0 mm second ring, 2.0 mm oil ring
- Balancing: Digitally spin balanced in-house on a CWT balancer
- Suited to: Forced induction or high-rpm naturally aspirated builds, drag racing, street and track use
Vehicle Applications
Engine family: Gen III Hemi 6.2L and 6.4L block architecture (not 5.7L). Vehicle list reflects the applications published by Texas Speed; confirm block and reluctor type before ordering.
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 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
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
- 2022 Jeep Grand Cherokee
- 2023 Jeep Grand Cherokee
Dodge Ram
- 2009 Dodge Ram
- 2010 Dodge Ram
- 2011 Dodge Ram
- 2012 Dodge Ram
- 2013 Dodge Ram
- 2014 Dodge Ram
- 2015 Dodge Ram
- 2016 Dodge Ram
- 2017 Dodge Ram
- 2018 Dodge Ram
- 2019 Dodge Ram
- 2020 Dodge Ram
- 2021 Dodge Ram
- 2022 Dodge Ram
- 2023 Dodge Ram
- 2024 Dodge Ram
Jeep SRT Trackhawk
- 2018 Jeep SRT Trackhawk
- 2019 Jeep SRT Trackhawk
- 2020 Jeep SRT Trackhawk
- 2021 Jeep SRT Trackhawk
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 Hemi 2,000 HP rotating assembly?
It includes a Callies Magnum 4.050" forged crankshaft, a set of Texas Speed billet 4340 Super I-Beam 6.125" connecting rods and a set of custom Mahle 2618 forged 4.095" 0cc dome pistons with upgraded wrist pins and a 1.5 mm, 1.0 mm, 2.0 mm ring pack, all spin balanced as a set.
Which Hemi blocks will this rotating assembly fit?
Texas Speed lists it for aftermarket or factory 6.2L and 6.4L Gen III Hemi blocks only. It is not compatible with 5.7L Hemi blocks. The 4.095" pistons require the block to be finished to that bore.
How much power is the 426ci Hemi rotating assembly rated for?
Texas Speed rates the assembly to handle up to 2,000 horsepower, which is why it specifies a Callies Magnum crankshaft, billet I-beam rods and Mahle 2618 pistons with an anodized top ring groove.
Does the crankshaft work with a factory Hemi engine management system?
The Callies Magnum crankshaft is compatible with 2013 and newer reluctor engines per Texas Speed. Builders using an earlier controller should confirm reluctor compatibility before ordering.
Is this rotating assembly balanced before it ships?
Yes. Texas Speed digitally spin balances every kit in-house on a CWT balancer so the crankshaft matches the weight of the supplied rods, pistons and rings.
What is the difference between this and the Texas Speed Brawler 426 Hemi short block?
This is a rotating assembly only, with no block, bearings or machine work, and it uses 2,000 hp rated Callies and billet I-beam parts. The Brawler 426 short block is a complete assembled short block rated for 1,000 hp with an H-beam rod and dished Manley piston.
