ACL Race Series Conrod Bearing Set Suit Big Block Chevy 366, 396, 402, 427 454 ci V8
Conrod Bearing - STD, 001, 009, 010, 011, 020
High performance Trimetal engine bearings
Designed to withstand higher RPM conditions
High strength overlay plate with reduced thickness for improved fatigue properties
8B743H-STD
Specifications for STD size only
Sizes
STD, 001, 009, 010, 011, 020
Oil Clearance
Half Type
Upper & lower
Material
F781
Min. Std Shaft Size
55,855 mm / 2.1990 in
Max. Std Shaft Size
55,88 mm / 2.2000 in
Min. Std Tunnel Size
59,047 mm / 2.3247 in
Max. Std Tunnel Size
59,06 mm / 2.3252 in
Max Wall at Crown
1,572 mm / 0.0619 in
Max Overall Length
22,58 mm / 0.8890 in
Notes
Diagrams
7100H-L
7100H-U
High strength overlay platewith reduced thickness for improved fatigue properties
Hardened steel backson all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
Increased crushfor improved bearing retention
Elimination of flash platingon the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
Increased eccentricityto compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
3/4 grooved Main Bearingsto optimize bearing load carrying surface area and oil flow to the conrod bearings.
Tight consistent wall tolerancesto help you maintain consistent clearances.
Enlarged ID chamferson bearing edges where required to accommodate large fillet radius on performance crankshafts.