Engine Kits

Clevite Rod Bearings GM 1991-2004 Tri-Metal Connecting Rod Bearing CB1443P
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Clevite Rod Bearings GM 1991-2004 Tri-Metal Connecting Rod Bearing CB1443P



Part #: CB1443P
List Price: $11.13
Our Price: $6.23
You Save: $4.90



General Motors Clevite 77, Tri-Metal Connecting Rod Bearings fit the following:
204 CID 3.3L LG7 Buick V6 cylinder 1991-1993,
231 CID 3.8L Fuel Injected Buick V6 cylinder 1991-2004 NOTE: 1990 VIN L,
231 CID 3.8L Supercharged Buick Supercharged V6 cylinder 1991-2004.

Clevite Tri-Metal 77 Connecting Rod Bearings combine the strength of a copper-lead alloy (Bi-Metal) layer with steel backing and an electro-plated Micro Babbitt metal as an overlay.

Clevite Connecting Rod Bearing part number: CB1443P  (Standard)

The steel backing on the Clevite Tri-Metal 77 Connecting Rod Bearings provides strength and durability. The Bi-Metal Babbitt overlay provides the conformability and Load Capacity. The Third layer - Micro-Babbitt overlay provides the critical surface Embedability & Conformability and has far more forgiveness than bi-metal.

This ideal design has properties not found in many original equipment bearings. In most cases Clevite Tri-Metal 77 Bearings are an upgrade over a stock bearing, or three times better.

It takes Three Layers to be Number One, and Clevite 77 Tri-Metal Bearings are it !

Engineering quality engine bearings involves a number of interdependent factors. Here is how Clevite 77’s Tri-Metal cast copper lead material compares to bi-metal bearings on the most important of these factors:

Seizure Resistance:
Tri-Metal bearings have significantly greater seizure resistance than bi-metal bearings, by as much as 40%.
Load Capacity:
Tri-Metal bearings can withstand much higher loads for longer periods of time as compared to bi-metal bearings, over 60% higher loads.
Embeddability & Conformability:
The overlay on a Tri-Metal bearing offers a far more forgiving surface than bi-metal bearings. This feature may not be as critical during OE assembly as it once was, but it does offer additional protection that can be extremely beneficial in maintaining your engine.
Durability:
Clevite 77’s Tri-Metal bearings not only exceed light vehicle OE durability requirements of 150,000 miles, they also exceed heavy vehicle OE durability requirements of 300,000 miles.
Tolerances:
Because the surface layer of a Tri-Metal bearings adds an additional manufacturing step, Clevite regularly holds wall sizes to within .0005” as compared to a bi-metal that can be held to within .0003”.

Not all Tri-metal engine bearings are the same - so if you want the strongest, highest quality engine bearings, ask for the original Clevite 77 Tri-Metal Engine Bearings.

Material: TM-77
Min. Std. Shaft Diameter: 2.2487"
57.1170mm
Max. Std. Shaft Diameter: 2.2499"
57.1475mm
Min. Vert. Oil Clearance: 0.0010"
0.0254mm
Max. Vert. Oil Clearance: 0.0035"
0.0889mm
Max. Wall: 0.0619"
1.5723mm
Min. Brg. O.D. or Housing Bore: 2.3738"
60.2945mm
Max. Brg. O.D. or Housing Bore: 2.3745"
60.3123mm
Max. Length: 0.7210"
18.3134mm

Competitor Interchanges
Qty
Comp Qty
Comp Part No.
Comp Name
1
6
6B1443P-STD
ACL
1
1
CB1443P
CLEMEX
1
6
CR6664AM
KING
1
1
3760A
SEALED POWER
1
6
6-3760A
SEALED POWER
1
1
3755APA
SEALED POWER
1
6
6-3755APA
SEALED POWER
*Part of a combination interchange requiring multiple parts competitor parts
When installing any bearing
DO NOT ATTEMPT TO POLISH THE BEARING RUNNING SURFACE WITH ANY TYPE OF ABRASIVE PAD OR PAPER.
Bearing overlay layers are extremely soft and thin, typically .0005” on high performance parts.
These thin layers can easily be damaged or removed by abrasive media. Because the overlay layer is electroplated,
it may exhibit microscopic plating nodules that make it feel slightly rough.
The nodules are the same material as the rest of the plated layer and will quickly be flattened by the shaft.