Ok, pulled the camshaft out today to figure out what the specs on it were. Turns out its a crane cam, which apparently went out of business and the specs are no where to be found. Soooo, f*ck it. Going to get a new cam, lifters and pushrods for my 396 big block chevy. Anyone know what a great off road cam and lifter setup would be?
CK5
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Replacing cam, what should i use?
- Thread starter us74k5
- Start date
Capt.D
1/2 ton status
I built a 454 several years ago and went with edelbrock performer intake,cam,and lifter package and was more than happy with it.....
Stomis
Professional Amateur
Google, the easy button of the internet 
http://www.summitracing.com/parts/CRN-103052?part=CRN-103052&autoview=sku
http://www.summitracing.com/parts/CRN-103052?part=CRN-103052&autoview=sku
Doggone, Crane went out of business.
There goes another piece of Americana....
There goes another piece of Americana....
Ok, so do any of you care to explain to me how I should go about setting the valve lash? I know how to do it on a stock engine, but this one is a bit different. I tried gettin number one on the compression stroke, then twisting the pushrods until it began to bind, then going half turn after that to get pre load. That is where i ran into a problem, the nuts on top of the rocker arm tighten up before it feels like i hit zero lash. So does this mean i am supposed to use a feeler gauge at the tip of the valve stem and the bottom of the roller? Or do I just torque the bolts down to a certain ammount? Please if you know exactly what setup I have, help me out and learn me how its done:-)
Ok after doing some research, it appears that I have a "non adjustable" valve train. And everything I read says "[FONT=Verdana, Arial, Helvetica, sans-serif]torque all rocker arm bolts to specification". Now... herein lies the problem. Wtf is my torque spec?? Does anyone know or have a way of finding out? Or just have a general torque that should work? Any help is much appreciated, thanks.
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stop and take a break for a min. 
you are getting to much info mixed up in your head at this point.
you do have adjustable valve setup. the newer stuff is non adjustable.
i my self have no experence in adjusting full roller rockers so i cant give you 100% info. but someone will post up to help you.
and if my motor i would think little smaller cam than 2000-up rpm range. our 4x4 heavy monstors need bottom end tourqe . but if you like it that good then.
you are getting to much info mixed up in your head at this point.
you do have adjustable valve setup. the newer stuff is non adjustable.
i my self have no experence in adjusting full roller rockers so i cant give you 100% info. but someone will post up to help you.
and if my motor i would think little smaller cam than 2000-up rpm range. our 4x4 heavy monstors need bottom end tourqe . but if you like it that good then.
1) do you have solid or hydraulic lifters?
Relax, take a deep breath, you can do this....
I think you are going through sensory overload....
too much input!
Relax, take a deep breath, you can do this....
I think you are going through sensory overload....
too much input!
You do not have a non-adjustable valve train
The rocker arm nuts you have are called poly locks , they have a set screw in the middle of them ,that you have to loosen or back out in order to set the valve lash , then you just set the lash as you would with regular rockers ,tighten the outer nut to the required setting ,then while holding the outer nut from turning you take an allen wrench of the correct size & tighten the set screw in the middle repeat 15 more times & you are done .
here's a pic of a tool for it JUST to give you an idea of how it works.
as stated above, the set screw locks in the adjustment...
as stated above, the set screw locks in the adjustment...
you see that allen set screw in the middle of the big hex nut?
you back that set screw off then adjust nut and then lock down the set screw to jam the nut tight in place.
you back that set screw off then adjust nut and then lock down the set screw to jam the nut tight in place.
Boy I wish I could delete those posts! lol. I figured it out:-) Just for reference the allen nut is inside of the nut that tightens down the rocker arm. Now if only i knew how much to torque the nut. Well i feel retarded:-)
thats o.k. even the pros get mixed up at times.
