The Eagle rotating assembly for Ford 351W is a complete rotating package specified for street or race installations. It includes a 4.170" crank mated to 6.300" H-beam rods and -18cc pistons sized 4.040". The combination addresses rod length and piston volume choices for specific compression and engine builds as noted in the product details.
Eagle Ford 351W 4.170in Crank 6.300in H-Beam -18cc 4.040in Pistons Rotating Assembly