Reman motors

[junkyardjeff]

I have a Jasper reman 460 in my 66 F250 and noticed today its a 71 block with 73 heads,do they use the same crank and rods that came with the block or are they thrown in a pile and grab what they need when building a motor. I am thinking its probably made from parts from many years and since it runs good I will not complain but just wondering.

[wayne petty]

there is a well documented chart produced by the PERA..

production engine rebuilders association..  that lists what casting numbers you can mix and match to come up with workable engines that meet OEM specs for some years..

i don't have a copy of that any more.. in the early 90s.. i had a photocopy..  probably from AERA.. but a friend borrowed it a few days before the northridge quake..  i was not able to get it back.. as he had a stroke and died while attempting to move massive piles of parts back into some shape other than leaning out over the sidewalk..

[Arnold]

I worked as an automotive machinist for a very large and very reputable
company. The company was big enough..and busy enough..that
stuff came through the door..all the time..all kinds of stuff.
 Somecustomers wanted their stuff fixed! Matching..or close #'s.
Welding/then grind back down cranks,welding heads,sleeving blocks
(yes we even welded and re-ground down cams!). Some people for show
or sentimental reasons want everything just that way. (Re-using pistons..
yes..magging them..then sometimes expanding them)
 I used to shake my head as to why someone..even for a show car
would want to re-weld..then re-grind..then have to re'balance an original
piece crank..that was garbagethat was only orginal by a casting or part #. It just costway more money! Like someone is ever going to see it. Oh well.
None of my business.
 Other customers wanted us to take a look and do what is best.
Others just wanted another motor!..or parts whatever.
 Matching #'s..going crazy..re-welding cranks etc for commercial vehicles
of course not.
 Stuff would come in the door..some stuff we went crazy on..other stuff
we just kept as cores..fast moving high demand stuff..got machined on the spot and kept as cores.
  There was just so much interchangeability for SOoo much stuff..that it just did not matter what year it was or what the part # of casting # was.
Obviously respecting factual differences. We put SOoo much stuff together
by..oh..sbc 350 block..oh..sbc 350 crank..these heads will work..those 350 rods will work. I mean..when you take apart busted engines all day long and keep only the good..rebuildable machineable parts...you end up
with all kinds of stuff!
  The guys I worked with took great pride in their work! EVERY part we
put into a motor had our own stamp on it.

  Ford used to have a "factory authorized" "re-manufacturing" place
near Toronto. They would also do other work. They basically only did
"as new" work. A "rebuilt" engine from those guys was pretty much
impossible to detect in any way(other than pulling it apart)They worked
with production,part,casting #'s. Just forget about even asking them to
mill headssleeve blocks,weld cranks/heads..use other than very close to
production #'s..part#'s casting #s''cause they would not do it. Their
engines were a blend of new Ford parts and as new Ford parts. As a matter of fact Ford at one time authorized some engine parts that had been machined'as new parts! Right in some of their manuals.Right..lol..
get a brand new Ford engine..or vehicle..and find at some later date
that the crank had been turned. Oldsmobile did that with some of their
W motors.."select fit" parts. Read: parts that were machined/re-machined
right at assembly line level that were not possible to buy that way. Chevrolet did that with some cranks..that were nitrided/carbon tuftrided
Here is your crank..now go and get it machined yourself haha.
Those Ford re-manufactured engines were a lot cheaper than a brand new Ford engine..but! they sure commanded big bucks used!

 There are almost no automotive machine shops/engine rebuilders left
where I am..Toronto area. A friend told me his buddy just had to close
up his rebuilding business as he just could not compete with wrecker motor prices. Sure..the odd machine shop..race/hi perf engines. GM Targetmaster engines pretty much put an end to rebuilt 350's

  lol..now we have lots of aluminum head engines with valve seats that
cannot be machined..too hard...made of "powderred metal". I don't even know if there would be room in the core to machine it for a seat haha.

 Rant over.