HP Cam Bearing Set - SBC Bowtie Block

The DURA-BOND HP Cam Bearing Set for SBC Bowtie Block (Part Number GMP-55) is a precision engine component engineered for small-block Chevy applications requiring a dedicated camshaft bearing solution. This 55mm journal standard bearing kit addresses the specific oiling and load-bearing requirements of Bowtie block variants, where stock bearing geometry may not deliver adequate protection during sustained high-RPM operation or aggressive valve timing events.

DURA-BOND is recognized in engine rebuild and performance circles for bearing sets that maintain tight journal tolerances and consistent oil film thickness across thermal cycling. The 55mm journal diameter specification is critical—it ensures proper fit within Bowtie block saddles and allows for correct bearing crush, which locks the bearing in place and prevents radial movement. Proper bearing selection matters because inadequate crush or oversized geometry leads to metal-to-metal contact, accelerated wear, and potential cam lobe spalling. This kit arrives ready for installation on a properly honed block.

Engine builders, restorers, and performance shops doing small-block Chevy rebuilds—especially those working with Bowtie block castings—rely on matched bearing sets to restore proper clearances and oil delivery. Whether this is a stock rebuild or a moderately modified engine, using factory-spec bearing geometry ensures the camshaft support matches original engineering intent. Verify your block's journal diameter and bearing saddle configuration before purchase to confirm compatibility.

Small-block Chevy variants—including Bowtie blocks—continue to be popular platforms for restorations and street performance builds. Sourcing OEM-specification bearing sets ensures that long-lead component choices don't compromise engine durability down the line.