getrdunn

Yes Mike that would be great. Last thing I like to do is misinform someone. I really do appreciate it. Tks
John
Btw Hope all is well.

14 apache

.050 intake opens 18.0 BTDC Closes 54.0 ABDC 108* 252*
Exhaust Opens 64.5 BBDC Closes 12.5 ATDC 116* 257*

Lobe .395 @valve .672
Advertised I 290* Ex 295*

Crane PN CHB2900009
Lash .030 HOT

C1000

Thank you to everyone. That is the information I was loking for!!

mike tkach

if you subtract the .030 lash the lift at valve will be .642.if i were rebuilding a sc900 i would go with a tight lash cam.some think tight lash cam,s are something new but i remember using them 20 years ago.

getrdunn

Almost spot on what I have on cam card from bullet for 1075 also. Lift, duration as well as timing events. Cool. Tks for posting. Appreciate it.

getrdunn

Why is that Mike and what is it that determines normal vs tight lash on SR. I've seen them advertised and know it's nothing new but just how does that work on a SR? (Lobe profile)? Now tight lash solids rollers on a billet hyd roller cam is something we've been doing with great success for many years also zero problems.

mike tkach

tight lash means the camshaft,not the lifters,i am not sure but t think the lead in ramping is different on a tight lash cam vs normal lash cam,normal being .024 to .032.i recently used a tight lash solid roller cam and the cold lash is .004.try setting that with a stud girdle.

Black Baja

Last one I did was .002 cold

getrdunn

How much more on the exhaust?

SB

I never understood the old school .030" lash cams. Way too much clearance.

If you are going to get a Bullet 'copy' ask them first what lash.