so I'm new here I have been trying to figure out the motor in my 95 f150 4x4 i first knew something was funky when i did the lower intake gaskets and found that the firing order was totally different than what the stickers said at the time we did not realize there was a 302 that used the same firing order as a 351 so we were super confused but it worked. now i have my block on an engine stand and am trying to figure out what i have so if any one could possibly give me a clue that would be awesome. here is what i have figured out so far on the right hand side above were the starter mounts there is F1SE right below that is BB as far as that one goes many are saying that this number is a casting used by cobra, it breaks down to be a 91 t-bird 302, also its supposed to be a roller engine. then on flange facing the ground below the 1st i found another # 5A26 now i can find breakdowns of each seperatly but not together and there is no casting number on this thing that looks like a ford part# the only other numbers on it is a 0 by the t-stat and on the top in the center on both sides there is XXX these are kind of off center like one is closest to #2 cyl? and the other would be #7? sorry trying to visualize it cylinder numbers may be wrong but same idea can any one help

 

All small block fords(302/351) built after 1994 used the 351/HO firing order.

F1SE is indeed a '91 casting stamp but that only refers to the year the casting was produced not the engine, and by this time it was primarily just trucks that were getting these old pushrod motors so your block could have been produced from that casting and used to build a motor for the '95 model year or even later. This casting is roller ready meaning it will accept the factory roller cam assembly but the motor could have been assembled with a flat tappet or roller cam.. just depends when it was actually built. There is no mistaking a roller cam motor, it will have a spring steel spider retainer in the lifter valley that keep the lifter dogbones in place around the roller lifters to prevent them from turning in the bores, while a flat tappet motor has none of this.
If this is the original motor for your truck it will have the F4TE roller cam in it which is a decent RV grind that just needs some 1.7 rockers to optimize lift and get most of the potential from the stock heads, specs are 0.422/0.445" lift and 256/266 duration. If it's an earlier motor it could have a base roller cam or flat tappet cam both of which only produce about 0.400" lift and 240deg total duration which completely hamstrings this motor so I'd be the first to suggest you swap it for the F4TE cam or something aftermarket. You'll have to measure the cam to know what you got there are no identifying numbers

 

thanks for the info I haven't checked the the cam yet I just got it torn down last night but I think it does have a retainer on the lifters like a thin sheet metal piece that bolt down in the valley and goes around the lifters similar to an open end wrench that keeps them from coming all the way out is that what you mean by spider retainer sorry this is the first block I've "been in" by myself so i'm not very tech savy as far as terms and vocabulary I know it does have flat tappet rockers I don't know if that would make a difference. I do know that it isn't the original motor that was in the truck I think the previous owner cratered the original there is also a circular stamp on the left side same spot that has five numbers in it and in the valley of the head there is the same stamp with the same numbers do you know if this means the heads match the block?

 

The cam can be measured in the block with a dial gauge, just remove a rocker and put the gauge on the tip of a pushrod and rotate the crank though a full cycle for that cylinder and record the minimum and maximum lift numbers and compare that to what's listed above. This is what the spider assembly looks like...

 

Ok that's what I have I pulled a lifter last night just to see it is a roller so there are two possibilities as far as size or style of cam? I'm going to try measuring it tonight everyone that's seen it is telling me I have slot of wear on it is this one of those things that if there is wear u replace it or can u get away with a little bit

 

What has a lot of wear?