probe pistons 20 over with a 4.5cc dish on b heads its around a 10.1 to 10.4 compression ratio depending on head work. they are on manley h beam rods. they came out of my lincoln mark VIII im selling them because im putting the teksid block in my cobra and going with a 351 in the lincoln. they have around 10,000 miles on them they are in great condition. im asking 800 obo. if you want pics or more info on them let me know thanks.
