The roller capable blocks with stock equipment are F4TE, F5TE, F6TE, and F7TE. The F stands for 90’s so F4 is 94, F5 is 95. So, they made them from 94-97 that are capable of being a roller with the factory parts. I’m not sure that all were roller though, but they were all roller capable.

Not true. The 1995 F-250/F-350 engines were stamped F5TE, the 96 F6TE, and 97 F7TE. F4TE means 1994 truck engine. Just like Ford has since the 50’s, every year is stamped different. Every year typically has slight modifications too that sometimes are very hard to spot the change, but in the 40’s they would be stamped A7?? for a 1947 engine. B2?? Would be a 1952 engine. C6?? Would be a 1966. D0?? is a 1970, E5?? is a 1985, and so on. They only change head castings every so often, so heads like E7TE were basically a 1987 truck head, but the way they were designed they worked good enough for trucks and cars and Ford was planning on phasing out the old small blocks so there weren’t a lot of head options from 87 on, so you might have a ‘97 351 Windsor with E7 heads, but I guarantee you that unless Ford got too lazy to change the stamp from ‘94 on up every year the block stamp changes. It did every year until ‘94, that I’m sure of, my 1992 F-250 has a 351 Windsor stamped F2TE on the side, my truck before that was an ‘89 302 stamped E9TE. I had an ‘88 GT Mustang 302 with a stamp of E8??. I had a ‘76 F-250 with a 390 stamped D6TE. My uncle has a ‘65 Galaxie 500 with a 352 stamped C5ME. Plus I have a Ford parts interchange book to cross reference which parts are interchangeable with which parts and it shows block #’s of F5TE, F6TE, and F7TE. Pretty sure under heads it has the ‘93 Mustang Cobra heads listed as F3TE head casting. I’m pretty sure that’s a requirement anytime a slight modification is made, even if it’s just the molecular composition of the parts metals, that the date stamp has to be changed, partly for recalls and such. First of all if the casting number doesn’t match what is supposed to be in the vehicle then it would void the factory warranty. Second different years had slightly different compression ratios, so a combo of the block stamp and the VIN engine code tells them what is there, if one doesn’t match then the engine is not factory. So, basically if every 351 Windsor from ‘94 to ‘97 we’re all stamped F4TE, then there would be no way to tell what year the engine actually was, so stuff like exact factory compression and other stuff that might have been adjusted a bit from one engine to another would be a lot harder to pin down. Now, if there were leftover F4TE’s when they started making ‘95’s then there were probably a lot of early ‘95’s that had F4TE engines, but when they ran out of extra F4’s then they would’ve started making F5TE’s. I know my Ford parts interchange book wouldn’t show F5TE’s, F6TE’s, and F7TE’s if Ford didn’t stamp any blocks with those casting #’s, and if all 351’s from 94-97 were all F4TE’s then that would be the first engine that Ford didn’t change the casting #’s on because it’s literally part of the manufacture date code. Just suffice to say, no matter the stamp on it, if it’s a 351 Windsor block that is stamped F4TE or newer, then it is roller capable, but I don’t think all of them were roller cam. Now they may have all had roller rockers, but the only way to know if they were roller cam was to pop off the intake and look, there would be drilled and bolted spots in the lifter valley for the extra pieces that go with the roller cam, plus the lifters would obviously be rollers and have shorter push rods than a 351 Windsor that has flat tappet lifters, because the roller wheel makes the lifters taller, which also means you can tell if a block is roller capable just by looking at the lifter bores because they will be about 1/2” taller than a non roller block to keep the lifters from rolling sideways at the top of their travel. But yea, according to Ford’s block stamping system and my parts interchange catalogue there very much are F5-F7TE 351 Windsor roller cam capable blocks, which just means 1995-1997 is the years they were cast.