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Clevite H-Series Rod Bearings CB-663HN

Clevite Engine Parts CB-663HN - Clevite H-Series Rod Bearings
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Rod Bearing, H Series, Standard Size, TM-77, Chevy, Small Block, Each

Estimated Ship Date: ...Loading Tuesday 5/26/2020
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Brand: Clevite Engine Parts

Manufacturer's Part Number: CB-663HN

Part Type: Rod Bearings

Product Line: Clevite H-Series Rod Bearings

Summit Racing Part Number: CLE-CB663HN

UPC: 27067537423

Bearing Usage: Performance

Engine Crankshaft Undersize (in): Stock

Engine Crankshaft Undersize (mm): Stock

Bearing Material: Tri-metal, TM-77

Dowel Pin Hole: No

Narrow Bearing: Yes

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Clevite H-Series rod bearings were developed primarily for use in NASCAR type racing but are suitable for all types of competition engines. These H-Series bearings have a medium level of eccentricity, high crush factor, and have hardened steel backs and thin overlays. They also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating.

Bearings with .001 in. extra clearance are available for standard size shafts and with or without dowel holes. H-Series bearings are recommended for use with crankshafts that have oversize fillets and where engines run in the medium to high rpm range. They should also be used if contact patterns obtained with Clevite P-Series bearings are too narrow. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface.


Questions & Answers Ask a Product Question

How many of these would I need?

Asked by RONALD on April 05, 2017


Quantity 8 for V8. Each box has 2 half shell bearings, so one box is enough to do one rod.

CHAD from CA answered on April 06, 2017

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How much narrower than standard are these bearings? Building a BBC with Callies Mag XL crank and Oliver steel I beam rods (SBC 2.100 journal) and somewhat surprised by how narrow these bearings are.

Asked by ALEX on August 09, 2019


Additional info: There's 0.0787" (less width of the bearing) on the straight cut side and 0.0433" less on the chamfered (rod) side (see photos).
Question is, is this OK?

ALEX from Switzerland answered on August 12, 2019

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I plan on getting my crank journals polished if not cut do to a little rust on journals would I be able to run these bearing?

Asked by AUBVERI on February 10, 2017


Yes there are harder bearing with better oiling

DANIEL from KY answered on February 11, 2017

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Would this be a good bearing for daily driving

Asked by STEVEN on August 11, 2019


I think it would. I use them in my race motor. I have used the same set of bearings thru 3 ring changes because they always looked like new.

LARRY from AL answered on August 15, 2019

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Some parts are not legal for use in California or other states with similar laws / regulations

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