Thread: choosing bearings

every rod i ever seen was stamped 0, and i have seen a lot of rods.....



all jokes aside, lol if all the rods ive seen say 0 then going with the numbers on the crank alone makes perfect sense!

i use to use oem bearings, but now at the cost and the fact that i havent had issues with acls (knock on wood) no pun intended i use those in almost all my builds now

You're a brave man if you are intending to build a FORGED motor with OEM bearings. Not a good idea.

Can you elaberate why? Also, my head is ready to go but i need some valve seals. The Nissan dealership quoted me about 8$ a seal??? My local parts store has the entire 16 from felpro for 33$. Any reason I should go with oem ones?thx

sorry guys but i still do not understand how to choose bearings from the chart according to the sumed up numbers...

Was there any final word whats 100% right way to choose rod bearing? As there are two opinions in this thread from respectable members and It does confuse me. Thanks

EDIT: This is for Roller Rocker and it does confuse me even more

This is SR20VE specific and seems like more ways how to do it (97-99 and 99-01). Anybody knows japanese? Thanks

120 - piston & crankshaft & flywheel (engine) ?? Bluebird HU14 Nissan ??????? - ????????

ROD BEARING: Take the 4 digit stamped on the crankshaft. That's it.




There are 4 digit for the rod bearings because there are 4 rods. The 5 digit is for the crankshaft main bearings because there are 5 crankshaft journals.

With all due respect to the Honorable Mr. Miko, we disagree on this point. The FSM is very clear about how grades are found. In no place, in any FSM i know of, does it tell you to factor in the # on the side of the actual rod.

and for the price of acls just get them in standard size

MAIN BEARINGS: use the chart to find the grade

1. take the 5 digits stamped numbers from block and crank
2. for the block #, go across the columns(x-axis)
3. for the crank #, go down the rows(y-axis)

For example:

Block #'s = 1 1 1 2 1
Crank #'s = 2 3 2 2 2

For the first bearing, take block #,which is 1, and go across(x-axis) and go down the chart the match up the crank #, which is 2, and you will get grade 3.

Final grade will be 3 4 3 4 3.


Numbers stamped on the block


Numbers stamped on crank