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Clevite 77 Ford High-Performance Bearings
Product images may differ from actual product appearance.
These Tri-Metal 77 engine bearings combine the strength of a copper-lead alloy layer with steel backing and an electroplated babbitt metal. The steel backing provides strength and durability; the babbitt overlay provides the critical surface characteristics of slipperiness and conformability. This ideal design has properties not even found in many original equipment bearings. Clevite offers main bearings, rod bearings and cam bearings in this series.
H Series -
Best to start with when unsure which bearing to choose
Medium level of eccentricity and high crush
Enlarged chamfers for greater crankshaft fillet clearance
Made without flash plating for better seating
Use with crankshafts that have oversized fillets
Use with engines that run mid-high RPM range
Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface
P Series -
Typically the greatest level of eccentricity
Rods and mains have high crush for maximum retention
Most are fully grooved to maximize oil flow to rod bearings
Reduced overlay thickness to prevent overlay fatigue
Use where extremely high RPMs cause severe rod bore close-in
Use where higher eccentricity is desired to narrow bearing contact patterns
V Series -
This series essentially duplicates Clevite's former Vandervell parts
Typically low to medium eccentricity
Not available with oversized chamfers
No flash plating on the steel back
All Clevite main bearing sets use a single-piece thrust bearing
Narrowed parts available to accommodate increased crankshaft fillet clearance
Lead-indium overlay offers slightly better conformability
M Series -
These are special purpose bearings having a
nominal .005" thick Babbitt lining on a hardened steel back
They are intended mainly for Blown Fuel engines where severe crankshaft deflections cause edge loading of the bearings
Under these operating conditions bearing service
life will be very short
Frequent inspection and replacement is recommended
Part Number Key
H - High-Performance
HD - High-Performance bearing with dowel hole
HK - High-Performance bearing with moly/graphite coating
P - Standard Clevite 77 tri-metal bearing
M - Blown Fuel Engine bearing for severe crankshaft deflections & edge loading
N - High-Performance Narrowed for greater crankshaft fillet clearance
HG - High-Performance full angular grooved bearing
V - High-Performance with Lead Indium overlay (On Main Sets this indicates partial groove also)
VG - High-Performance with Lead Indium full angular grooved bearing
D - Bearing has a dowel hole
K - Tri-Armor coated bearing
X - Bearing has .001 more oil clearance than standard
XX - Bearing has .002 more oil clearance than standard
A or AL - Indicates Aluminum bearing material
Note: Clevite main and cam bearings are priced as sets; rod bearings are priced each.
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