what bearings?

[black90lx]

i am putting new bearings in the bottom end of my motor. i measured the crank where the rods and main bearings go with 2 different sets of calipers and they are reading bigger than what the manual says. Where the rods go i measured 2.125 and the manual says 2.0465 to 2.0472. Where the mains go i measured 2.2500 and the manual says 1979-1990 2.399 to 2.3982, and from 1991 on it says 2.2059 to 2.2051. in my bearings they say STD on the back of them , does that mean they are a standard bearing? how can i tell what year my motor and crank is so i know which reading to go by for the crank. thanks for any help,scott

[mustang8998]

My book (Haynes), shows 2.1228 to 2.1236 on the rod journals and 2.2490 to 2.2482 on the mains.

You should use a micrometer, instead of calipers, to get the best possible measurement. ;)

There is a VIN code stamped on the block, that will tell you what year it is.

[black90lx]

I just figured out I was looking at the 4cyl crank specs.I used a set of dial calipers and digital calipers. Who sells a good micrometer for cheap?

[mustang8998]

I just figured out I was looking at the 4cyl crank specs.I used a set of dial calipers and digital calipers. Who sells a good micrometer for cheap?

I'd try Harbor Freight, for micrometers.

I would add, that your measurements, with the calipers, is very close to spec. I would think STD bearings, will work just fine.

[black90lx]

Thanks for the help