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Clevite Coated H-Series Main Bearings MS-667HX Bearings, Standard Size, Tri Metal, 1/2 Upper and Lower Groove, Pontiac, 421, 428, 455, Set of 5

SKU: CLEMS-667HX

Main Bearings

Clevite Coated H-Series Main Bearings MS-667HX Bearings, Standard Size, Tri Metal, 1/2 Upper and Lower Groove, Pontiac, 421, 428, 455, Set of 5

SKU: CLEMS-667HX

Main Bearings
A$363.89
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

Clevite coated H-Series main bearings were developed primarily for NASCAR racing, but are also well-suited to other types of competition engines. They are especially good for engines that run at medium-to-high revs. They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity. These H-Series bearings feature Clevite's exclusive TriArmor coating, the industry's only moly/graphite treatment. The sophisticated blend, in a low-friction PTFE polymer base, offers extraordinary protection and lubricity. Clevite H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. They're also available with either 180 degree or 360 degree oil grooves, as well as an extra 0.001 in. of clearance.

Part Type

Main Bearings

Data: v4.2 - Upd: 2026-10-14 10:29:36

Specifications

Product Attributes - Brand
Clevite Engine Parts
Product Attributes - Manufacturer's Part Number
MS-667HX
Product Attributes - Part Type
Main Bearings
Product Attributes - Product Line
Clevite Coated H-Series Main Bearings
Product Attributes - UPC
027067652447
Product Attributes - Bearing Usage
Performance
Product Attributes - Engine Crankshaft Undersize (in.)
Stock
Product Attributes - Engine Crankshaft Undersize (mm)
Stock
Product Attributes - Grooved Bearing
Yes
Product Attributes - Groove Location
Upper and lower
Product Attributes - Groove Style
1/2
Product Attributes - Thrust Bearing Oversize
Stock
Product Attributes - Bearing Material
Tri-metal, TM-77
Product Attributes - Quantity
Sold as a set of 5.
Product Attributes - Notes
0.001 in. extra oil clearance.

Reference Information

Brand Name/s Clevite
StreetFX SKU cleMS-667HX
SFX Item ID 4885380
Supplier Item Code 4885380
Manufacturer SKU MS-667HX
Manufacturer UPC N/A

Compatibility

Application Data
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
    Engine VIN CodeW
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
    Engine VIN CodeW
  • MakePONTIAC
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    ModelBONNEVILLE
    SubmodelBASE
    Liter6.9
    CID421
    CC6900
    Application NotesHigh Performance H Series (Tri-Metal) Standard X - .001in Extra Oil Clearance Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    ModelBONNEVILLE
    SubmodelBASE
    Liter6.9
    CID421
    CC6900
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    ModelBONNEVILLE
    SubmodelBASE
    Liter6.9
    CID421
    CC6900
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesMaterial Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Position Numbers 4 and 5 Are Full Grooved
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesNote Position Numbers 4 and 5 Are Full Grooved Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L
  • MakePONTIAC
    ModelBONNEVILLE
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter6.9
    CID421
    CC6900
    Engine FamilyPontiac V8
    Engine Size6.9L/421
    Application NotesColumn1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Position Numbers 4 and 5 Are Full Grooved Column13 Domestic Column20 76-67 PON 7.5L

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