i am building a slightly modified 460, the local engine builder said i would need a slightly over stock stall speed, does anyone have any recommendations. the comp/cam i have is comparible to the edelbrock's performer rpm cam. any help would be greatly appreciated, know nothing of cams and torque converters thnks

 

im running a hughes 2500 stall converter in my 1974 highboy with a 429 and it does an awesome job.make sure you get the correct crank pilot size as their are 2 sizes

 

Keep in mind that when you get an off the shelf stall converter they're usually designed for lighter vehicles so a lot of times they'll stall higher than they're rated. I believe Pro's 2500 TCI conveter stalled at 3200 instead. This is all in proportion to the power your engine is putting out too but my point is if you're not having a custom converter built for your truck make sure you don't go overboard on the stall RPM as it may already stall higher than rated. I don't know the RPM range for that cam so I couldn't tell you what to shoot for.

 

With a stall converter, you will generate more heat so upping your cooler size a bit may be worthwhile protection.

Good Luck,

Jim Henderson

 

Ivan what stall did you end up with because the performer RPM cam mentioned is pretty close to the cam you ended up with in your engine.
Now the closest cam to the performer rpm cam in a comp that I could find was the x4278H-11 xtreme energy 4x4 cam. duratin is 234/244 @ .050 lift is .574/.580 LSA 111. if that is the cam you have I hope you have some idea what your getting becaue that is a fairly radical cam, and your gonna need to have the engine actually built to take it. first off stock valve springs will NOT work, also I wouldn't try running that cam with bolt down pedestal stock rockers the min would be go with a roller conversion rockers, and get some good pushrods DO NOT try and run stockers on that. with that lift you need to make sure your builder first degrees it in not just toss it in the engine, and then really needs to check piston to valve clearence. Lastly I don't know anything about your build but that cam is gonna need atleast 9.5:1 compression to work decent, and if you have vacumn brakes your gonna want to put a vac canistor on the truck cause your not going to have enoug to run your brakes properly. And the performer RPM intake is the smallest intake you will want to run with it too.
that cam should have a 2500 stall approx, I would suggest for easy to get off the shelf run a B&M holeshot 2400, or TCI breakaway on a pretty decent 460 they will probably have an actual stall around 2600-2700 rpm (they both claim 2200-2400 on those convertors but Ivan is right in a heavy truck it will flash higher) A better option if you can afford a couple hundred extra is get a custom stall that will tailor to your engine be right were you want it without guess work, and will work better all around.

 

I went with a 2500 stall for mine and had it built for the truck so it DOES stall at 2500. I'll have to see if I can upload the video I have where you can hear it turned down and idling. I really am happy with the cam but as Rob said it's fairly hairy for the street. I have played around a lot with it and can get it to idle as low as 600 but I have 5 pounds of vacuum. Thank god for hydro-boost.

 

You know better than that, vac isn't measured in pounds, your thinking blower again I can tell.

 

Sorry, inches is what I meant. I just finished typing a reply to Dusten about his supercharger.

Uploaded a short vid. The neighbors seem to enjoy it.

http://www.supermotors.org/vehicles/....php?id=241710