Crane Cams #753901

[markaboo929]

Hello I am building a stroker 4.6 engine and plan to use the crane cam 753901 BUT it is advanced 5 degrees,I want a little higher rpm band so i was thinking of bringing it closer to 0 ,more or less 2-3 advanced degrees using an adjustable timing set.Has anybody done that to their's?

 

[Dr. Dyno]

No, but I used the identical spec Crane 753905 cam in my original stroker build and I was very happy with the powerband with the cam installed as Crane intended (5 degrees advanced). Unless you spend a lot of the time holding the engine at higher rpm, I suggest you do the same.

 

[markaboo929]

Thank You Dino...I apprecieted the responce to the emails we had previously.I did get the Crane Cam due to availability and speaking with the engine machine shop-they do all race motors-on Crane brand...anyways.Dino what rpm/cruise speed where you felt the power band real good?I do however cruise at 75 mph @3000 and in 4th around 2500-2700 45-55 mph.Very rarely do I cruise under 2300-2500 rpm.It has been a constant debate in my head that needs clarification..I do trust your judgement very heartedly...:sunshine:

 

[seanyb505]

I kinda had to be honest with myself when planning it all. Truth be told, I don't race my Jeep on a daily basis and most of it is cruising so building a compromising mid range engine wasn't such a bad idea.

 

[markaboo929]

This is in my daily driver-the machine shop is only doing the block work-bore and hone .020" mill the deck .020" , install cam bearings and furnace clean to a new looking block,not just hot tank it.Yeah i am thinkin install cam as is,which was my original plan...which leaves me pondering to cam bearing failures as to weather or not they were installed correctly-gradual smaller taper to inner cam bearing the front being the largest-my machinist is aware how they go in.He has my cam so if it isnt right he would match the bearing clearence to fit...as the factory manual states.

 

[Dr. Dyno]

Dino what rpm/cruise speed where you felt the power band real good?

The torque was spread pretty evenly from 1000rpm to the 5200rpm rev limiter and I loved it. Your cruising rpm is right in the meat of the powerband.