FRP Tuning 6.4L 422/426CI HIGH COMPRESSION STROKER KIT

Looking for the ultimate 6.4 based stroker kit for your max effort NA build? Look no further than the FRP 422 high compression stroker kit. Our kit is specially designed for high rpm durability. We also have a 426ci option that uses a 4.050 crank and 6.175 rod for even more displacement and compression!

Unlike most stroker kits that come with a 6.125 rod, our kit includes a 6.200 rod and 4.00 stroke which equates to a higher wrist pin location for maximum stability at higher rpms. The piston comes with a +7 dome that is stock Eagle(5.7L) and Apache(6.4L) chamber friendly. This allows end user to achieve compression ratios 13-15:1 depending on gasket and head choice.

Valve pockets have also been opened and deepened to accept valves up to 2.200″ diameter and the largest camshafts we can manufacture. Spin this rotating assembly past 8000rpm with confidence!

All assemblies are 1300 horsepower capable.

CP Carillo FRP-specific .010 oversized high compression stroker piston. +7 dome

Callies 8CW 4.00/4.050 crankshaft

Molnar 6.200/6.175 forged power adder H-beam connecting rods w/ ARP 2000 bolt

Please note that all stroker kits are special order items and will be sent to FRP Warehouse for verification and inspection prior to shipping.

NO REFUNDS, NO EXCHANGES, NO EXCEPTIONS!