Unless they changed the Lokar, it only retains the dipstick with an O ring at the fill tube. ... Altho a locking type stick is highly desireable ,NHRA does not require them in S/SS COMP,or the .90 classes. ... I believe IHRA does require them in the .90 classes, but I dont think you need it in S/SS. Tom
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Tom Goldman 1500 SG , 1506 STK
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