Installed height of valve springs

[ruckus68]

Hi Guys
I have an aussie 250 2v head with a comp cams 260H camshaft and crow cams ( I think ) valve springs with holden valves

Does anybody know the specs of the valve springs so my machine shop can set the installed height for the springs and valves? I will be using full roller rockers if that makes a difference.

thanks and cheers
John

 

[ruckus68]

anyone... anyone...

 

[addo]

John, do you know if the Holden springs are "Red" or "Blue" motor units? I believe they are different somewhat.

Alternatively, do you know the installed pressure requirements for the cam? You could put the springs in a manual tester and work it out that way.

BTW, teeth are going well... no major corrosion; lots of dental Bondo required though. He says I grind them too much, so not to expect miracles!

Cheers, Adam.

 

[alloydave]

hey there , i got a crow book here .the only non crossflow spring they
list is the #7820 which has a installed hieght of 1.550"
installed pressure of 100 pressure @.5 lift is 205
max lift .530" solid height of.975"
hope this helps

have other specs if you need to i.d the spring
o/d 1.450" i/d 1.090" right hand coil freelength 2.100"


cheers dave 67xr6

 

[ruckus68]

addo
the springs are black if that means anything. I will check out the cam specs.

as for the teeth, have a rubber night or sports guard made
they are not too expensive and will help with the grinding. if you have dental labs there (check the phone book) they can usually make them cheap. I used to get them made for a case of beer. now i make them myself.

alloydave
thanks for the info
i will take that to my machinist and have him do the measuring

thanks eh!!!
John