Ford 427 Diamond Racing Forged Pistons 4.325 Bore
K Craft Racing Custom Set of 8 , high HP ( Big Bore Stroker Piston Set )
4.325"  BORE , COMP DIST 1.392"
 4.125 x 4.325 = 485 cid , Nicely Over Square Bore  , Stroke Ratio  ,  10.5 - 9.5 to 1
Custom Piston Set with  options
Large Bore Size is too much for most OEM old 427 blocks , but not problem for Shelby , Pond  Dove , and other blocks
Hi horse power stroker pistons , pump gas , long rod , 4.125  Stroke
Valve Pockets are deep , for high lift  camshafts - valve clearance.
No Piston pins (.990  x 2.930)
     $325         NEW
I have pics.....
1] 1969 Boss 429 Hood and Scoop OEM / Ford used  ,  4200

3] Boss 302 factory replacement short blck  engine(D1) 1969/1970 , 5k obo  very nicr std ready
4]  1969 351w Mach1 short block , blueprinted   2200    nrw biuld
5] 
6] Boss 302 intake 1970  700  clean
 
I have pics .....  EBAY