Jim, I am sorry I even posted on your thread. I have not sold any as I am still doing testing but they seem to do great so far. I said to email me because I did not want to post any more in your thread but did not want the people that asked for info to think I forgot about them. I only posted because I was very excited about the cam combo for myself at a much better price.


They are not stage III Cower as that would be a little too much lift on the exhaust on these trucks. They are not drilled out so they are heavier. There are ways to up the tq #s on the bottom end that will make your claims nil. I am still playing with them but they are a great combo for those looking for a little more agressive cam. I also sell the StageI and StageII cams for those that want a smoother idle.

PS Jim I hope you are going to Cecil on the 8th. Make a point to stop by and listen to my quiet CP PISTON motor!

You know my #, give me a call and lets keep this offline.

 

I'm with ya man, I just don't know if my wallet is too...
Shane

 

Very Professional Tommy, Can anybody tell me if Crower cams are regrinds or ground out of a Billet piece of Material ??

 

Crower = billet

from the Crower website

Ford SOHC Billet Cam Cores
Crower has just released it's new line of billet cam cores for the 4.6(edit AND 5.4) Ford SOHC Modular applications. Currently only the two valve cores are available, however the four valve designs will be available by January 2003. These are premium steel billet cam cores, not regrinds of factory cores, and allow for unlimited specs without any reduction in factory base circle.

 

Thanks S/F for the link and the Answer

 

Same here.

There's just something about a mean sounding engine ...

 

anyone have a best estimaste/ price range a shop would charge to do this cam install? This cam sounds like it would be a great mod. Thanks.

 

Oh I know, trust me I know. I wish I had the cash for a built motor and cams... Some days I think about that more than I think about school and work stuff. It's unhealthy I know. Then some nights I just hear the sound of the truck idleing with like stage II cams in my sleep...
Shane

 

I think jdm quoted me at $700 for the install. Correct me if I'm wrong Justin... What all does a cam install consist of? You can leave the motor in the truck can't you? Or does it need to come out? And you can leave the heads on right?
Thanks, Shane

 

So long as you dont change your springs, the cam swap can be done without pulling heads off the engine.

 

My understanding of the stage III cams is that they have too much duration. With a supercharger and positive manifold pressure valve overlap causes air and fuel to be pumped into the exhaust.

Performance cams have larger lobes (mass) for the increased lift and duration adding unwanted rotating weight. JDM cams are rifle drilled removing the added weight from the increased lift and duration. My truck was one of the first to receive the new riffle drilled cams and they are awesome. 3000+ miles as a daily driver and not a problem. The idle is music to the ears, the cam profile and Kenny Bell work really well together :-)

 

Is this install very hard? Or would i need the local speed shop to install them?

 

That really depends on Mechanical experience, for me its easy but for others it might be a PITA.


SLG- Your right about the drilling process but your not adding that much weight, We are talking about going from a 531 lift to less than 600. On pushrod motors we are talking about going for a 400 lift to 550 or more and thats after the 1.7 rocker arm. I find it very hard to believe that you actually save 3lbs per cam, I wonder if this is the same kinda speech that was given about the intake spacer.

 

Drilled out cams.....good gawd.....I'm going to have to splain polar moment of inertia to some of you guys.

The Crower stg III do have to damn much lift on the exhaust. You couldn't expect a valve spring to last long with that lift even if you could get it to work right with everything else.

Dale

 

I would suspect more weight then you are giving credit; the increased mass is not only due to the lift but also the duration and profile (fatter lobes). Cams are relatively heavy considering the overall rotating engine mass. Look at the hole in the cam below that is some serious weight. I don’t know off hand what the rotating cam weight is compared to vehicle dead weight when calculating acceleration but I would bet that it is not 1:1.