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SRT 6.4L- 426 HEMI Long Block

2011-2018 Challenger SRT

2012-2018 Charger SRT

2012-2014 Chrysler 300 SRT

2012-2018 Jeep Grand Cherokee SRT


 Introduced in 2011 with a 392 HEMI the SRT can be an aggressive beast with the right combination under the hood. Better Built has a 426 HEMI long block package that will make your SRT stand out. This 426 HEMI long block configuration is putting down over 600HP at the crank. Built with a 4340 Forged crank and rod combo along with 2618 forged pistons there is no worry if you want to strap a blower on or shoot some nitrous to it. All of our long blocks come with ARP Head and Main studs along with Cometic MLX Head Gaskets.  

3yr/36000 Mile Warranty

Block Prep: 
Casting inspection
Sonic Check cylinder walls
Deburr interior surfaces
Chamfer and Radius edges
Deck Head Surface
Cylinder Bore and Hone
Line Bore and Hone
Total Block Cleansing

Short Block Assembly:  
Mopar Block 
Manley Performance 4340 Forged Crankshaft 
Manley Performance Forged H-Beam Rods
Manley Performance 2618 Pistons w/ Steel Ring 
ARP Main Studs 
ARP Head Bolts
Clevite H-Series Bearings 

Head Options:
Better Built valve train upgrade
Stainless Intake and Exhaust Valves
Conical Beehive Springs .650" Lift
Hardened Retainers and Locators with Shims
Viton Valve Seals

Camshaft Kit and Timing:
Comp Custom Grind VVT Camshaft
Comp Phase Limiter
Chromoly Pushrods
Non_MDS HD Lifter Set
Mopar Rockers
Mopar Timing Set
Mopar 6.2L Oil Pump


Cubic Inches: 426
Liters: 7.0
Bore Size: 4.090"
Rod Length: 6.125"
Stroke: 4.050"

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