1bd63nova

got a 2003 6.0 liter lq4 i just put a new blower comp cam in it a st of new trick flow 220'2 a set of yella terra 1.7 ratio rockers.. just got done gettting the cam degreed and now when i rotate the motor over when the lifter is on the low side of the cam there is a ton of play at least a 1.8 if not 3/16 of play between the the rocker and the valve. any one have a clue why? im using a stock length push rod. im thinking the lifter is bleeding out oil and its not being able to pump back up since the motor hasnt been ran in a few months and theres no oil in the motor.. so any thoughts guys???

bww3588

iTrader: (49)

Stock length push rods with trick flow heads is your problem. Trick flows have thicker decks. Usually run in the 7.500 range in push rod length.

1bd63nova

what i thought but the amount its missing the valve by a lot . think is more then a longer push rod will fix will the lifter bleed out?

bww3588

iTrader: (49)

Measure...

sepsis

iTrader: (7)

http://www.texas-speed.com/p-275-com...h-checker.aspx

therabidweasel

iTrader: (5)

Bled out or not, your lifters have springs. You would not have the slack if you were engaging (preload) those springs. It looks like a lot of play because it is multiplied by the rocker ratio.

1bd63nova

thanks guys was gonna check the length anyway im waiting for the checker it just seemed like a ton of play so ill try a push rod tool when it comes monday and let you know what i fond

thanks