I believe the Ford Parts manual lists these as high performance pistons??? Possibly BOSS 302 pistons. I have 6 total. NOS in boxes like below. 4 LH and 2 RH. Anyone interested, let me know. Not sure what they are worth or really what they are. I know they didn't make HiPo's in '69. $50.00
These pistons are listed for all high performance vehicles using 351 cylinder heads. They are pop up pistons and that is why they have right and left sides. They are not Boss 302 pistons as these are for 351W heads. They were, I believe, part of the Ford Muscle Parts program however they were not listed in the Muscle Parts catalogs. These pop up pistons were compatible with the 351W heads due to their having a larger combusion chamber. Pop up pistons were a normal hot rod upgrade to boost compression on many engines.
-Fred-
I am running pop up pistons 11:1 in my 289 HiPo
used in my 67 Shelby. The engine is 030 over and the
rest is standard HiPo. Pings at todays gas in Sweden.
/Bo
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