The Mahle MS single forged piston for Ford small-block 333 cid applications is a direct specification piston sized 4.040 in bore with a 3.250 in stroke and 5.400 in rod length. It has a 1.165 in compression height, 0.927 in wrist pin, roughly -16 cc dish yielding about an 8.7:1 compression ratio and a nominal mass near 415 g for accurate rebuild matching.
Mahle MS Ford Small Block 333cid 4.040in Bore 3.250in Stroke 5.40in Rod 1.165CH Piston - Single