7-inch dome piston enables higher compression ratios for improved engine output
Deepened valve pockets and oversized valve guides support valves up to 2.200 inches for increased airflow
High-stability wrist pin location and 4.00 stroke maximize RPM performance at the expense of lower compression
Includes forged power adder H-beam connecting rods with ARP bolts for enhanced durability
Crankshaft and rod options tailored for 6.4L and 6.0L engines to optimize displacement and balance
Summarized by Shop
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
Crankshaft
4.00 inch stroke, 4.050 inch stroke (426CI option)
Rod
6.200 inch, 6.175 inch (6.0L option)
Piston
7-inch dome, stock Eagle 5.7L and Apache 6.4L chamber friendly
Valve Pocket
Deepened, accepts valves up to 2.200 inches diameter