Fits: Small Block, 340, .020 in. Undersize
Main Bearings, P Series, 1/2 Groove, Standard Size, Tri Metal, Dodge, Plymouth, Set of 5
Bearing Usage: Direct replacement
Grooved Bearing: Yes
Groove Location: Upper and lower
Groove Style: 1/2
Bearing Material: Tri-metal, TM-77
Quantity: Sold as a set of 5.
Notes: Fully grooved.
P-Series main bearings are the oldest members of the Clevite 77 bearing family and are intended for high-revving engines. To compensate for the high-load factors and distortion in these engines, these bearings have higher eccentricity and a high crush factor. P-Series bearings are built on steel backings with extra-thin overlays to prevent overlay fatigue. In addition, the oil grooves on most applications extend all the way around both halves for better oiling.