ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"
ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"
ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"
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  • Load image into Gallery viewer, ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"
  • Load image into Gallery viewer, ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"

ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"

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$103.50
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$103.50
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ACL Race Series Rod Bearings Small Block Chev Quad 4, 1.889"

CONROD BEARING - STD, 001, 010
  • High performance Trimetal engine bearings
  • Designed to withstand higher RPM conditions
  • High strength overlay plate with reduced thickness for improved fatigue properties

8B1663H-STD, 8B1663H-001, 8B1663H-010 8B1663HX-STD

Specifications for STD size only

Sizes STD, 001, 010
Oil Clearance
Half Type Upper & lower
Material F781
Min. Std Shaft Size 47,968 mm / 1.8885 in
Max. Std Shaft Size 47,981 mm / 1.8890 in
Min. Std Tunnel Size 51,181 mm / 2.0150 in
Max. Std Tunnel Size 51,194 mm / 2.0155 in
Max Wall at Crown 1,588 mm / 0.0625 in
Max Overall Length
20,12 mm / 0.7921 in
Notes
Diagrams
7000H-L
7000H-L
7000H-U
7000H-U

 

  • HIGH STRENGTH OVERLAY PLATE with reduced thickness for improved fatigue properties
  • HARDENED STEEL BACKS on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
  • INCREASED CRUSH for improved bearing retention
  • ELIMINATION OF FLASH PLATING on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
  • INCREASED ECCENTRICITY to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
  • 3/4 GROOVED MAIN BEARINGS to optimize bearing load carrying surface area and oil flow to the conrod bearings.
  • TIGHT CONSISTENT WALL TOLERANCES to help you maintain consistent clearances.
  • ENLARGED ID CHAMFERS on bearing edges where required to accommodate large fillet radius on performance crankshafts.