popscomet wrote:you may want to wait til you get machine work done to get parts ,UNLES, you are for sure the crank and bore are what their size is...jmo...pop
Thanks Pops, yes I already got my .020 pistons that took 3 months to get
I am fairly confident they will be fine. I can hold off on the bearings even though I am fairly confident the standard sizes will be fine, I believe 250 rod (and maybe crank) are SBF size (interchangeable) so they should be easier to source, that has been the hardest part of the engine build is the rarity of specific 250 parts. well except I had to get Aussie 250 pistons because I wanted the higher compression pin height (or lower whichever it is) so I could fix the piston shortfall and they are even rarer than US 250 stuff (which the piston in a 250 are 200 pistons so they are not rare at all).
I am sure when the 250 came out in the US, Ford was trying to hit some magical emission number so they basically "de-tuned" the motor, Aussies, on the other hand, developed the inline 6 beyond what we did here in the US and built some pretty good inlines that could put the 8 guys to shame, all that to say they got the piston right and that one particular piston when combined with the proper, longer, length rod (in my case the 2.5L HSC Tempo rod, which is rare as well) I am back to a long stroke, zero deck (almost, will be with around a .010 block shave) engine running SBF sized 7 main, crank which should be way overbuilt for the motor.
I guess that is my story on why I am doing what I am, for anyone who did not know
and why I have to source most my parts ahead of time, because as much as I want to keep most the Comet running readily available "off the shelf" parts there are a few things I just can't get or I want to make "improvements" on the original design. At least from the flywheel back the running gear will be '98 Ford stuff mostly, so hopefully any of those maintenance parts will be easy to get (starters, brakes, etc). I hope never to buy pistons or rods, for this Comet again so I am trying to it right this time.
See Ya,
Mike