The dual plug motors used smaller mains. I don't have the specs, but I think that's what you may have. Problem is I can't see that crank running in the large journal block without serious problems. I think it would be painfully obvious that the crank was wrong during assembly, let alone upon start up.
looks like you have a "small main " crank
2.2051 std main
.022 under on the mains and
and ya got a lil lost on your math on the rods
2.0465 std rod, your claming 2.018 a diffrence of .0285
so you have a small main crank ground under .020 main
bearing part # MS1743P.50mm
and Rod bearing part# CB984-.75mm
the small main was run in dual plug head engines from 89 up
so your 90 stang fits the bill
also did ya notice the 1/2 thrust bearing?
2.2051 std main
.022 under on the mains and
and ya got a lil lost on your math on the rods
2.0465 std rod, your claming 2.018 a diffrence of .0285
so you have a small main crank ground under .020 main
bearing part # MS1743P.50mm
and Rod bearing part# CB984-.75mm
the small main was run in dual plug head engines from 89 up
so your 90 stang fits the bill
also did ya notice the 1/2 thrust bearing?
Not that this has anything to do with the motor problem, but i thought it was fitting for the thread. When I went to buy my '86 capri, i was surprised to find that the valve cover said 2.3 Turbo on it. I figured maybe someone just swapped covers since at the time the car was a 2.3 carbed. Took it home to find an oil drain-back on the block. It said "85-Tbird" in faded marker on the timing cover too. Figured someone went through the trouble of swapping the whole motor out a TC but not the turbo setup. Turned out that it was just the turbo short block but the original NA head from the capri with the turbo valve cover on it. The 88 Tbird head from the one I was swapping in was damaged so i pulled the head from the capri motor thinking it was for a turbo motor but i was wrong.
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