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SRT 6.4L - 448 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 448 HEMI long block package that will make your SRT turn heads. This 448 HEMI long block configuration is putting down over 640HP at the crank. 11:1 compression makes this engine pump gas freindly. The massive stroke and camshaft profile allow for the lope to give you that old school sound. The perfect daily driver and weekend strip car.    

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 with Plates
Line Bore and Hone with Plates
Shot Peen Main Caps
Total Block Cleansing

Short Block Assembly:  
Mopar Block 
Molnar Technologies 4340 Forged Crankshaft / Keyed for Damper
Molnar Technologies H-Beam Rods w/ ARP2000 Bolts
Diamond Racing 2618 Piston 
ARP Main Studs
ARP Head Bolts
Clevite H-Series Bearings 

Head Assembly:
Better Built valve train upgrade
Stainless Steel Intake and Exhaust Valves
Conical Beehive Valve Springs .650" Lift
Hardend 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: 448
Liters: 7.2
Bore Size: 4.095"
Rod Length: 6.125"
Stroke: 4.250"

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