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S. B. International, Inc. M21500-68
SBI Valve Seat. Precision-manufactured valve train component by S.B. International, Inc.
S. B. International, Inc. PC1500-72
SBI Seat. Precision-manufactured valve train component by S.B. International, Inc.
S. B. International, Inc. PC2125-19
SBI Seat. Precision-manufactured valve train component by S.B. International, Inc.
QualCast, LLC 20-1750-4N
Valve Seat Insert Engine Valve Seat Inside Diameter 1-7/16 Outside Diameter 1.7550 Depth 1/4 Seat Angle 45
QualCast, LLC 21-1625-55
Valve Seat Insert Engine Valve Seat Inside Diameter 1.333T Outside Diameter 1.6320 Depth 0.237 Seat Angle 45


