MCS-921129 - 2 used. Offers an additional +.150" clearance for stroked motors. Replacement for both OEM and S&S 915179 piston cooling jet kit with +.150" clearance. Note: See 915179 for complete S&S kit of 2 jets with installation hardware and o-rings.

Fitment:
99-17 OEM Twin Cam & most Twin Cam strokers (NU)