FITS SMALL BLOCK CHEVY ENGINES such as 283, 305, 307, 327, 350, 383 (stroker), 400, and others using the popular platform
INCLUDES THE FOLLOWING QUICK-CHANGE RELIEF VALVE OIL PRESSURE SPRINGS 50-55 psi (green) - the oil pump is shipped with this spring pre-installed, 65-70 psi (orange), 80-90 psi (yellow), and also includes copper oil pump gasket
PRECISION MACHINED FOR TIGHTER TOLERANCES which equals less pressure loss
FEATURES an exact mesh gear set to housing bore, yielding the highest idle PSI
MADE IN USA with high quality components and assembly