Which Rings and Bearings?

6SENSE

Member
First thought is just go to the parts store and get the good ole Federal Mogul stuff or whatever they have. However Im trying to ACT smart :rolleyes: so I figured Id ask first. Are there any brands or type that are recommended to ultimately hold up better, for a street/ strip 4.1 build shooting for say [roughly] about 500rwhp? My machinist mentioned something about "race" bearings that hold up better (?), and I know there are better rings out there. Just need a little direction. Part #s and any instruction is welcome ;) Just trying to go a little faster hopefully in the near future :cool:
 

49-blues

Active Member
Are you gonna be putting the schneider 208/224 cam in a 4.1 ? Thats what i was thing of doing- but decided to go roller instead. It should work really well.
 

49-blues

Active Member
If you do a search on 4.1s- there are a couple of articles that give all the bearing numbers but i would still inquire the part numbers from a reputable engine builder like maybe Weber- I would also like to know what bearings Brian from Weber uses. Maybe he could chime in here?
 

Squid4life

Well-Known Member
Should be the same bearings as the 3.8, but here goes:

BEARINGS I USED:
CAM: TA 1557 from TA performance
ROD: Clevite 77 CB-1443 P (same as 3755APA)
MAIN: MS-960P-1 (“1” signifies .001 instead of STD)


Other bearings:

CAM BEARINGS:
TA 1557
Durabond BP13T (dry film coated)
Clevite SH1448S

MAIN BEARINGS:
Federal Mogul FM107M
Clevite MS-960P (coated)

ROD BEARINGS:
Speed Pro 6-7120-ch (wide)
Clevite CB1228P (Stock Width)
Clevite CB-1443P (wide)
Clevite CB1398H (wider and harder)
Federal Mogul 3755AP (Stock Width)
Federal Mogul 3755APA (Wider)
 

6SENSE

Member
49-blues said:
Are you gonna be putting the schneider 208/224 cam in a 4.1 ? Thats what i was thing of doing- but decided to go roller instead. It should work really well.
Yes sir ;) Ive been planning on using this grind anyway (thanks to Lee for suggestions) so when I saw you had one for sale I new it was time to stop procrastinating and just grab it. I also made myself jump at some NICE heads, so hopefully I can make this thing a reality this year (time to go do some more side jobs).

Thanks for all the info Squid.
 

49-blues

Active Member
Let us know how it works out for you after you get it all together- i think im gonna use a 218/218 roller on mine.
 

87GNSteve

Just another pretty face....
Wait!

ATTENTION: The cam bearings for the 4.1 are different, Durabond # BP12 that is because the front journal is not grooved on 4.1 and 3.8 14 bolt pan blocks.
 

49-blues

Active Member
I would think TA would give him the right bearings if he told them what motor it was going in. Are you saying the TA-1557 cam bearing is not the right one for a 4.1 block?
 

87GNSteve

Just another pretty face....
I know the Durabond # was incorrect for the 4.1 that is the 3.8 p/n.
There is a few thing to consider when using the 14 bolt pan blocks (4.1 82-84 and 3.8 84 -early 85) The front cam journal on the block didnt have a oil groove the front journal on the cam has the groove and the bearing is different for oiling.
The 109 blocks have a oil goove in the block, and a solid journal cam and those bearings are different.
If the wrong combintion of parts is used disasterous results can occur.
for example.
4.1 block with ungrooved cam and 3.8 bearing no oil to the L side
Look here for more disscusion:
http://www.turbobuicks.com/forums/showthread.php?t=36449&highlight=groove
TA has bearing for both blocks I understand.
 

Squid4life

Well-Known Member
87gta-turbo said:
ATTENTION: The cam bearings for the 4.1 are different, Durabond # BP12 that is because the front journal is not grooved on 4.1 and 3.8 14 bolt pan blocks.


Sorry, should have been more specific. I meant the rods and mains are the same. :eek:
 
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