ACL Nissan Pulsar GTIR Race Series Main Bearing Set 0.25mm Oversized SR20DE/DET – 5 oil holes in upper 5M2975H-.25

Looking to enhance the performance of your Nissan Pulsar GTIR’s SR20DE/DET engine? Look no further than Terra Firma Nissan Parts, where we offer the top-of-the-line ACL Race Series Main Bearing Set in 0.25mm Oversized. Designed to meet the demands of high-performance driving, these engine bearings feature 5 oil holes in the upper part for optimal lubrication and reduced friction. With a perfect blend of design, metallurgy, and engineering, these Trimetal engine bearings deliver the precision and durability that every driver seeks. Whether you’re a racing enthusiast or a professional engine builder, trust ACL to provide the ultimate upgrade for your Nissan Pulsar GTIR. Elevate your driving experience and unlock the true potential of your engine with the ACL Nissan Pulsar GTIR Race Series Main Bearing Set from 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.