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Valves Spring/Retainer Kits Rods Pistons Misc.
K20 / K24 - PRO SERIES VALVE SPRINGS RETAINERS AND LOCKS - learn more about our valves springs, retainers & locks

Manley valve springs are wound from super clean alloy. Each design minimizes stress to ensure long service life with high lift camshafts. Titanium retainers are manufactured in our own double spindle CNC machines to exacting tolerances and precise installed height specifications. Valve locks are manufactured in our own Swiss turning centers with rigid control over the all-important angle to ensure precise mating with the retainer.

VALVE SPRINGS
Part # Quantity O.D./I.D.
Outer
Inner
Seat Pressure Open Pressure Stock/Max Lift Coil Bind Rate (lbs./in.) Retainer #
  Honda K20A/K20Z
22140-16 16 pcs. 1.160"/.870" - .865"/.660" 80 @ 1.590" 249 @ 1.140"
283 @ 1.050"
0.450"
0.540"
1.000" 375 23140-16
  Honda K20A3/K24A
22145-16 16 pcs. 1.106"/.787" 79 @ 1.565" 182 @ 1.185"
226 @ 1.025"
0.380"
0.545"
0.975" 274 23145-16
 
TITANIUM RETAINERS
Valve Stem
Diameter
Dimensions
Part # Quantity Spring Degree A B C Step Height Valve Locks
  Honda K20A/K20Z
23140-16 16 pcs. 22140-16 5.5 mm 1.050" .850" .610" .080" Stock 13010-8
  Honda K20A3/K24A
23145-16 16 pcs. 22145-16 5.5 mm 1.050" .775" .610" .045" Stock 13010-8
 
VALVE LOCKS
Part # Quantity Valve Stem Groove Type Angle Wgt. / Pr.
  Honda / Acura
13010-8 8 pr. 5.5 mm / .2165" Bead Loc® 1.5 gms
 
SPRING AND RETAINER KITS
Part # Quantity Max Net Lift Spring # Retainer #
  Honda K20A/K20Z
26140 1 kit 0.540" 22140-16 23140-16
26140K 1 kit (Includes 13010-8 valve locks) 0.540" 22140-16 23140-16
  Honda K20A3/K24A
26145 1 kit 0.545" 22145-16 23145-16
26145K 1 kit (Includes 13010-8 valve locks) 0.545" 22145-16 23145-16
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