ACL Nissan Race Series Main Bearing Set 0.25mm Oversized RB26DETT acl7M2428H-.25

Discover the pinnacle of high-performance with Terra Firma Nissan Parts' ACL Nissan Race Series Main Bearing Set for RB26DETT engines. Crafted with precision and excellence, this 0.25mm oversized set is engineered with a perfect fusion of design, metallurgy, and engineering expertise. Our Trimetal engine bearings ensure unmatched durability, reduced friction, and enhanced engine performance. Experience the power and reliability you crave with this exceptional Main Bearing Set, designed to meet the expectations of discerning drivers. Trust in Terra Firma Nissan Parts to provide the finest selection of Nissan performance parts, exclusively catering to your automotive needs. Elevate your driving experience and unleash the full potential of your RB26DETT engine with our Race Series Main Bearing Set. Experience true performance excellence with Terra Firma Nissan Parts.

• 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.

Description Main Bearings; Main Bearings; Tri-Metal; Upper & Lower; Flange in Position 4

Oil Clearance Standard

Size .25

Max Std Shaft Size 2.1644" (54.975mm)

Max Wall at Crown 0.0719" (1.827mm)

Max Overall Length 1.063" (27.00mm) w/ 2428H/HX Flange 0.787" (20.00mm) w/ 2429H/HX

Max Std Tunnel Size 2.3094" (58.658mm)

Min Std Tunnel Size 2.3089" (58.645mm)

Min Std Shaft Size 2.1634" (54.951mm)