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These bearings are identified by a letter H in the part number suffix. Part numbering is based on the same core number as the standard passenger car parts for the same application. These bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines.
H series bearings have a medium level of eccentricity, high crush, and rod bearings have a hardened steel back and thin overlay. These bearings also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating. Bearings with .001” extra clearance are available for standard size shafts and carry the suffix HX” (X = extra clearance). Rod bearings are available with or without dowel holes (HD = with, H = without), main bearings are available with standard 180 degrees upper half grooving and with full 360 degrees grooving (H = 180 degrees, HG 360 degrees). Use H series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. H series bearings should be used if contact patterns obtained with P series parts are too narrow. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface. See accompanying contact pattern diagrams. If you aren’t sure which type of performance bearing to start with, the H series bearing will be your best choice.
Barcode | 027067560896 |
UPC Code | 027067560896 |
Old Part Number | MS1804P25MM |
Note | for use with 1997.5+ Prelude 55mm mains only |
Note | 1997 was a split year for H22A4 main bearings. H22A4 Engines build up to 1997.5 used a 50mm main bearing, which is the same as an H22A1, but engines made in late 1997 or after use these 55mm main bearings. |
Shipping Weight (Dimensional) | 0.648000 |
Clearance Sale | No |
Availability | Call |
Part Type | Main Bearings |
Make | Honda / Acura |
Model | Civic 92-95 EG, Civic Non-VTEC 96-00 EK, Prelude VTEC 97-01 BB6, Accord 98-02, Civic 87-91 EF, Del Sol Si 93-95 EH6, Del Sol S/Si 96-97 EH6 |
Engine | D16A1, D16A6, D16Y5, D16Y7, D16Y8, D16Z6, F23A, H22A4 |
Brand | Clevite |
Competitor Interchange Part Number | MB5568AM0.25 |
Bearing Class | Non-Race |
Bearing oversize | 0.010" / 0.25mm |
Carb Legal | Unspecified |
Shipping Label | Free Shipping |
Color | Black, Blue, Gold, Polished, Purple, True Burned |
Fastener Material | Titanium |
Color | Black, Blue, Gold, Polished, Purple, True Burned |
Fastener Material | Titanium |
Contact us at any of our channels and get inmediate help before making decisions.