Quote:
http://store.summitracing.com/partdetail.asp?part=ROS%2D81762&autoview=sku
do they have 81762 on the quench part of the piston?
also found this on a search at google. Couldnt find it our sale section though 
moparts: Engine Parts For Sale - Big Block - FebThey come with file fit rings( .020 top, .016 bottom) They have maybe 1000 miles on them. They have 81762 on the top of the piston and 437rb on the bottom ...
board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5007930&Main=4988487
The pistons you found are 4.360 dome ross pistons, 3.75 stroke. I know because I was kicking around buying them and the seller sold them. Hence the reason you cant find the ad.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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