Clevite MS2321H1 High-Performance Main Bearing Set Dart LS Next -.001"

The Clevite MS2321H1 is a high-performance tri-metal main bearing set engineered specifically for Dart LS Next engine blocks with -.001" undersized journals. This H-Series bearing set features Clevite's proven 77 tri-metal construction, combining a steel backing for strength, a copper-lead alloy intermediate layer for load capacity, and an electroplated babbitt overlay for superior surface characteristics including slipperiness and conformability.

H-Series Design Features:

• Medium eccentricity with high crush for maximum bearing retention in the bore
• Enlarged chamfers engineered for greater crankshaft fillet clearance
• Manufactured without flash plating to ensure better seating and contact
• Optimized for mid to high RPM engine applications
• Ideal starting point when bearing selection is uncertain
• Designed for contact patterns covering 2/3 to 3/4 of bearing surface

Tri-Metal Construction Benefits:

• Steel backing provides structural strength and heat dissipation
• Copper-lead alloy layer delivers exceptional load-carrying capacity
• Babbitt overlay ensures optimal conformability to minor crankshaft irregularities
• Performance characteristics exceeding many OEM bearing specifications

Application Specifications:

• Designed for Dart LS Next engine blocks
• -.001" undersized for journal grinding or dimensional correction
• Complete main bearing set including thrust bearing
• Single-piece thrust bearing design for reliability

The H-Series is Clevite's most versatile high-performance bearing line, making it an excellent choice for street performance, racing, and engine rebuilds where oversized crankshaft fillets are present. The medium eccentricity design balances oil film thickness with bearing stability, while the high crush design ensures the bearings stay firmly seated under demanding conditions.

Part Number Breakdown: MS2321H1 - The "H" suffix indicates H-Series high-performance construction with enlarged chamfers, while the "1" indicates -.001" undersize.

Note: This bearing set is designed for use with crankshafts featuring oversized fillets and engines operating in the mid to high RPM range. Proper measurement and fitting procedures should be followed during installation.