Large journel rod bearings....
10-19-2008, 07:05 PM
#1
Large journel rod bearings....
Hey guys Im replacing the lower rod bearings, the one in my rebuilt 350 have these numbers on them...
FM
2555CP
UC
010U.S.
I need to know what bearings I should replace them with...?
I didnt rebuild the motor previous to now so I have no idea what to get, or even what brand?
FM
2555CP
UC
010U.S.
I need to know what bearings I should replace them with...?
I didnt rebuild the motor previous to now so I have no idea what to get, or even what brand?
10-19-2008, 07:17 PM
#3
Moderator
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Large journel rod bearings....
Those are Federal Mogul 2555CP, .010" undersized. If your crank journals measure ok you can reuse the same thing.
10-19-2008, 07:31 PM
#6
Re: Large journel rod bearings....
Like these//// http://www.jegs.com/i/Sealed+Power/8...CH-10/10002/-1
Trending Topics
10-20-2008, 07:13 PM
#12
Moderator
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Large journel rod bearings....
Assuming your rods are sized normally, you're going to end up with about .003 of clearance, which is big for the street.
Torque spec depends on what fasteners you're using.
Torque spec depends on what fasteners you're using.
10-20-2008, 07:36 PM
#13
Re: Large journel rod bearings....
what do you mean for the street? I am not sure what rod studs it has or nuts for that matter. What is the stock tourqe spec? like 50lbs?
Last edited by five7kid; 10-20-2008 at 10:21 PM.
10-21-2008, 06:03 PM
#14
Supreme Member
iTrader: (1)
Join Date: Jul 2004
Location: Calgary, AB, Canada
Posts: 10,763
Likes: 0
Received 4 Likes
on
4 Posts
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Large journel rod bearings....
street, ie not drag strip.
If you're using it at the strip only, and use straight 40wt oil, then it's ok. That much "cushion" is fine. But you need the thick oil to make up for it.
Not great on the street, with cold starts, many years of desired service, oil pumps that should last a while, etc.
Stock is about 45ftlbs. Oil on the threads. If you use ARP studs (highly recommended) then use their lube and their spec (obvioulsy).
You can get .011" bearings, and your tolerances will be .002". That's much better. Are the journals very good? ie, you've checked them and there's no oval or marks?
If you're using it at the strip only, and use straight 40wt oil, then it's ok. That much "cushion" is fine. But you need the thick oil to make up for it.
Not great on the street, with cold starts, many years of desired service, oil pumps that should last a while, etc.
Stock is about 45ftlbs. Oil on the threads. If you use ARP studs (highly recommended) then use their lube and their spec (obvioulsy).
You can get .011" bearings, and your tolerances will be .002". That's much better. Are the journals very good? ie, you've checked them and there's no oval or marks?
10-22-2008, 09:04 AM
#15
Re: Large journel rod bearings....
yes, they are in very good shape. I was told that I should run kendall
20w-50. I plan on getting a panheater for the winter... but cant plug it in at school so wont drive it much for sure. The motor was built for the strip. freshly .030 over and everything.
20w-50. I plan on getting a panheater for the winter... but cant plug it in at school so wont drive it much for sure. The motor was built for the strip. freshly .030 over and everything.
Thread
Thread Starter
Forum
Replies
Last Post
skinny z
Engine/Drivetrain/Suspension Parts for Sale
5
10-05-2015 06:23 PM
Damon
Tech / General Engine
8
09-26-2015 04:29 PM
1Aauto
Sponsored Vendors
0
09-02-2015 01:35 PM
