I ran king rod bearing in my ls/vtec for the last year and have held up great seen 9.5k a few times and 8.5 probaly twice a day on the weekdays and 30 on the weekends. pulled the pan after 10,000 miles of abuse last week and clean as could be. but I have also used acls and they are very good too. like snatch10psi said check your clearences that will decide what is gonna happen

 

to run the proper clearances u must usually run more than one color

 

Binga, Spec it right and order OEMs. My ZC bottem end was
Crank
3 Brown and 1 Yellow
Rod
1 Brown 1 Yellow, 2 Green

Or something like that. But just goes to show you they are not all te same.

 

OEM's all the way, unless you have someone machine the crank to get proper clearances with ACL's, clevites, etc. Then you would need to get the crank nitrided again to get the strength back.

ACL's, clevites, etc only work without machining if you need one color, GREEN. That's all you get.

 

i took apart my mess up block (which i paid someone to built at a pretty low cost)the other day and they are all ACL STDs
All rod bearing and main bearing/ rod/crank jounral are gone

 

Yes all aftermarket bearings are green unless you get them under or oversized and must have the crank cut for them to work. Or to save money like some people do is use aftermarket bearings where your mains/rods call for greens and buy oem for the rest taht is the only way you can get right clearances without machine work.

 

Im building my new motor with ACL's and every one spec'd out perfect. You cant just slap in any bearing and have it work. But if the bearing has the correct clearances its not going to matter if its a Honda bearing or an ACL.

 

^ very true i have seen only few engines with all green bearing codes i think 2 in my whole life your lucky man i wish i had your block

 

check the manual for your car
itll tell you how to check and what your clearances must be