Clevite H-Series Main Bearings MS-804HX Oldsmobile V8, 400-425-455, 1965-1976

SKU: CLEMS-804HX

Main Bearings

Clevite

Clevite H-Series Main Bearings MS-804HX Oldsmobile V8, 400-425-455, 1965-1976

SKU: CLEMS-804HX

Main Bearings

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Clevite H-Series main bearings were developed primarily for NASCAR racing, but are well suited to other types of competition engines as well. They're 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. H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. They are 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 10:29:12

Specifications

Product Attributes - Brand: Clevite Engine Parts
Product Attributes - Manufacturer's Part Number: MS-804HX
Product Attributes - Part Type: Main Bearings
Product Attributes - Product Line: Clevite H-Series Main Bearings
Product Attributes - UPC: 027067652331
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
Product Attributes - Groove Style: Full
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: Provides .001 in. extra oil clearance. Position 1 bearing has groove on upper half only.

Reference Information

Brand Name/s	Clevite
StreetFX SKU	cleMS-804HX
SFX Item ID	4885788
Supplier Item Code	4885788
Manufacturer SKU	MS-804HX
Manufacturer UPC	27067652331
Alternative References	V8

Compatibility

Application Data

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1965
Ending Year	1966
Engine Type	V8
Liter	7.0
CID	425
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings
Engine VIN Code	8
CC	6966

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1965
Ending Year	1966
Engine Type	V8
Liter	7.0
CID	425
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings
Engine VIN Code	8
CC	6966

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1965
Ending Year	1966
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
Engine VIN Code	W

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1965
Ending Year	1966
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings
Engine VIN Code	W

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Column1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Column13 Domestic Column20 85-65 GMC 5.7L-7.5L
Engine VIN Code	W

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance
Engine VIN Code	W

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Notes Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings
Engine VIN Code	W

Make	OLDSMOBILE
Beginning Year	1967
Ending Year	1971
Engine Type	V8
Engine Family	Oldsmobile V8
Engine Size	7.5L/455
Model	98
Submodel	BASE
Liter	7.0
CID	425
CC	6966
Application Notes	Column1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Column13 Domestic Column20 85-65 GMC 5.7L-7.5L

Make	OLDSMOBILE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Model	98
Submodel	BASE
Liter	7.0
CID	425
CC	6966
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Notes Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Model	98
Submodel	BASE
Liter	7.0
CID	425
CC	6966
Application Notes	High Performance H Series (Tri-Metal) Standard X - .001in Extra Oil Clearance Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1971
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1971
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1971
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1971
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1966
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	High Performance H Series (Tri-Metal) Standard X - .001in Extra Oil Clearance Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Column1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Column13 Domestic Column20 85-65 GMC 5.7L-7.5L

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Column1 High Performance Column2 H Series (Tri-Metal) Column3 Standard Column4 X - .001in Extra Oil Clearance Column5 Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings Column13 Domestic Column20 85-65 GMC 5.7L-7.5L

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001" Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings

Make	OLDSMOBILE
Model	98
Submodel	BASE
Beginning Year	1967
Ending Year	1967
Engine Type	V8
Liter	7.0
CID	425
CC	6966
Engine Family	Oldsmobile V8
Engine Size	7.0L/425
Application Notes	Material Grade High Performance Series H Series (Tri-Metal) Size Standard Suffix X - .001in Extra Oil Clearance Note Positon Numbers 2,3,4 and 5 with Full Annular Grooved Main Bearings