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Operating line
pressure is the lifeblood of
any automatic transmission by
providing the clamping force
on the clutches and bands.
Often times, increasing line
pressure is a requirement
when increasing driveline
output. The new TCI 4L60E
boost valve assembly provides
you the means of elevating
your line pressure while also
addressing wear issues that
may actually have your
transmission running at a
lower level of pressure than
GM intended.
Boost valve features: larger diameter over stock that yields 10-15% higher line pressure, o-rings on boost sleeve which prevents loss of boost signal pressure, sleeve constructed from Alcoa Deltalloy 4032 & hard-coat anodised which prevents wear between the mating parts.