ACL Race Series connecting rod bearings for Toyota 3S-GE, 3S-GTE
Fits
Toyota
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- Collection at our shopCartagena, Spain
ACL Race Series connecting rod bearing set for Toyota 3S-GE, 3S-GTE, part number 4B8366H. This is ACL's competition range, the same as used in drift, circuit, and drag racing engines.
Inside, they feature three layers on a high-strength steel backing: a copper-lead-tin lining, a thin nickel barrier, and a lead-tin-copper sliding layer, which is what works against the crankshaft. In connecting rod bearings, the surface layer is thinner to better withstand fatigue.
ACL manufactures them with more "crush" (interference fit) than a standard bearing to ensure they stay firmly in place and dissipate heat better, as well as increased eccentricity, which helps maintain the oil film when the housing deforms at high RPM.
In standard size, ACL specifies them for a crankpin diameter of 47.985 to 48.000 mm, with a bearing width of 21.3 mm. For this diameter, they recommend an oil clearance of about 0.051 to 0.061 mm, measured with a micrometer and bore gauge. If the crankshaft has been ground, the measurements change.
They do not have the final silver-tin plating of standard bearings, so their dark color—ranging from brown and black to bluish—is factory standard and does not indicate any defect. ACL advises against polishing the bearing surface to adjust clearance; if more is needed, they should be combined with the HX version, which provides an additional 0.025 mm of clearance.
Not sure if your crankshaft is standard size? Write to us with your engine code and we will help you choose.