Today's race engines make more power than ever before. Yesterday's engine bearing load capacity no longer works today' and tomorrow's race engines will be even more powerful. There's a need to meet these demands with higher bearing design standards and improved materials.
HP Series are made of Bi-Metal Aluminum Silicon Alloy. They are best suited for applications requiring a harder than Babbitt top layer to better resist extrusion & material migration (drag racing, monster truck, tractor pull). Also for all other applications using nodular cast iron crankshafts.- Usage:
 - Performance
 - Material:
 - Bi-metal, silicon aluminum
 - Engine Crankshaft Undersize (in.):
 - 0.001 in.
 - Coated:
 - No
 - Narrow Bearing:
 - Yes
 - Dowel Pin Hole:
 - Yes
 - Quantity:
 - Sold as a set of 8.
 - Make:
 - Chevrolet
 - Engine Family:
 - Chevy big block Mark IV
 - Engine Sizes:
 - 6.5L/396-7.4L/454
 - Years:
 - 1966-1990
 - Engine Family:
 - Chevy big block Gen V
 - Years:
 - 1991-1995
 - Engine Family:
 - Chevy big block Gen VI
 - Years:
 - 1996-2000
 - Engine Sizes:
 - 7.4L/454
 - Engine Family:
 - Chevy big block W-engines
 - Engine Sizes:
 - 5.7L/348-6.7L/409
 - Years:
 - 1958-1965