PUSHRODS ADJ QUIK TC 99-

Tube material starts out as 7/16” rod OD, then gets turned down to 3/8” OD leaving heavy duty 7/16” - 20 threads for the base and jam nut 0.134” wall thickness Jam nut slides up the pushrod Base then loosens up into the pushrod to allow Quick Install access Individual length exhaust and intake pushrods Install without the removal of rocker covers Correct pushrod/lifter adjustment requires starting with fully pumped up lifters. Quick Install pushrods have 7/16” - 20 threads per inch. 0.050” adjustment per turn. Two turns = 0.100”. Requires pushrod tube kit that is sold separately. Made in the USA