NOS/MAN

whats the most accurate way to check?? clay method or light spring?? light springs .151 exhast/.103 intake....clay .110 exhast/.070 intake..see what i mean???

NOS/MAN

THANKS FORUM PEOPLE ,,,,,,,,,FOR THE ADVICE,,,,I GUESS YOU ALL DONT CHECK YOURS...THANKS DIDNT MEAN TO BE UGLY..

Mustang88LXKid

When me and my dad checked we followed Comp Cam's directions and they said use clay form it and then put oil on it. So I would say go with the clay method because we got it right the first time.

roundman

NOS/MAN, see if this helps you out-from National Dragster March 26, 2004. It's the best explantion of and precise measurement of checking piston to valve clearance I've ever read!

[IMG]local://upfiles/5542/Sq462896711.jpg[/IMG]

Mustang88LXKid

thats everything you'll need for valve clearance

NOS/MAN

thanks i need to know how to blow it up it gets small in cant read it???i was just going to bring it to my machincest so he can check it he needs to install my springs anyway..hes putting the short block together for me this time because of all the notcthing and cleaning that has to be done to it...it just has .700 lift a little worried you know??408 12.5to1,,262/274@.050 .701/.686..freaking big dude..and 150 shot for now..

[IMG]local://upfiles/5822/Xu624725324.jpg[/IMG]

roundman

see if this is any better NOS?MAN, I ain't too good at this stuff either.

[IMG]local://upfiles/5542/Pn371257001.jpg[/IMG]

[IMG]local://upfiles/5542/Bz795150739.jpg[/IMG]

[IMG]local://upfiles/5542/Mk266488629.jpg[/IMG]

NOS/MAN

ill try it out thanks heres sowhen using the light spring i can hold down on the valve yill a feel it touch the piston makes the light spring go up then back down i get it to the mid point,,on check it ,,by measuring the distance between the retainers edge..im getting 2 diff readings dont know why.....i always checked the clay way ,,before,,,is that to close????also checking on my old 351w not my 408 its still in the shop..i know it wont be the same buy hoping it will be more ,,,but i thinks its going to be less because the piston will be moving faster ,,right????my piston on both motors are .010 in the hole..checking with old gasket .042 thick..with soild roller with .025 valve lash..both ways i checking over 10 times each ,,and iam going crazy not getting the same readings,,,,i know i will have to check on mt 408 ,,should i just bring the heads to the shop ,,and get them to check it also ,,they are degreeing my cam in anyway,,also my spring compressor cant compress these new springs....225 seat pressure,,,thanks for any more advice...dont want no problems with this motor..or my wife will hit me with a skillit.... .

NOS/MAN

dam stay big for 10 seconds than goes small

Obsol3te

take the mouse off the picture for a second after it goes small
then place the mouse back on it

a little box should pop up in the bottom right with arrows on it
click that and itll stay big