M-6303-C340* Fits 302 production and Ford Racing cylinder blocks. Stock 2.1232" rod journal diameters. Use with M-6200-D50"Sportsman" rods (5.40" long) and 1.090" CD pistons in standard 302 block for 347 cu. in. Features: Lightening holes Rounded CW leading edge, tapered trailing edge Rod and main journals are nitrided and polished Requires custom pistons, rods and balancing