Cam Question

[CrazyJesster]

ok i got this 400 sb im building and ive installed a lunati Bracket Master II cam. here are the specs

the duration is 292 he gross lift is 480 and the rpm range is between 2000 and 6000

so this may seem like a dumb question but the tranny i got is a th350 with a mild shiftkit in it

i dont think the converter is a stall


with this cam whould i need a stall converter??? before i put this thing together id like to find out so i dont have to pull the tranny again lol

i was told by some people here in town hot rodders and the machine shop this cam whould be ok. i dont know if ill evr run it on the strip but its going to be a street toy/hotrod

[69face]

http://www.summitracing.com/streetandstrip/tech_content.asp?ID={7B20B3C7-AF72-42B3-9583-6BD43F224310}
here's a good webpage

[CrazyJesster]

from the looks there looks id need a stall converter i guess

[CrazyJesster]

http://store.summitracing.com/partde...&view=1&N=700+

this is the cam i got right here

im still not really understanding this

[Desperado454]

Fwiw, I run a similar cam in my 350 (Xe-274h) and it's right on the edge of running while in gear with the stock converter. Took alot of screwing around to get it to work. Stall converter would probably be a good idea.

[CrazyJesster]

well i havnt ptu the motor back in and was thinkin of this before i did.

what stall range you think?

[Desperado454]

I would say 1800-2200 would work fine, thats what i would've put in my truck. Doesn't it say anything on the lunati site?

[CrazyJesster]

i never have looked i ordered this cam good god uh 4 years ago i think from jegs

[CrazyJesster]

yeah it says stall convertor but does not specify what stall range. also says headers increased compression ratio an gearing needed

now i got a set of headers my heads are milled .20 had valv job done an new valves

[CrazyJesster]

igot 4.11 rearend gear ratio and whould this conveteor be ok ??

http://www.jegs.com/i/JEGS/555/60402/10002/-1

[CrazyJesster]

i called jegs gave them the partnumber of the cam i got. they said it whould require a 2500 stall

so i guess ill have to get one

i dont know how bad it whould be without that an the stock convertor i have

[Pushrod226]

I've gotta 81 malibu with that same cam, 64cc small valve camel hump heads, and flat top pistons with valve reliefs in a 350. Dam good runnin motor, stock converter on a th350 and a 2:42 gear out back. For what I've got in it, it flies! I've used a stock converter in this car with this combo for over ten years.

[69BBsuburban]

I have a similar cam in my hotrod.....with a stock converter. It's fine, but does wanna push through the brakes at idle....a 10" converter would be better.

[LONGHAIR]

CrazyJesster,
I would go with the next one up from the one you asked about.

JEGS #555-60400

This one is only a little more money, and it will make a difference. The point of a "loose" converter is to allow the engine to quickly/easily get up to the RPM range where it makes its power. You originally stated that this cam was in the 2000-6000 range. It also removes some of the drag/load from the engine while it at idle. This makes it idle more "freely" like it is in neutral rather than like it is dragging a trailer.
Of course this is another one of those traps where, "more is better" comes into play. Don't fall for that either. If the converter is too loose, you end up with a lot of extra heat and fuel mileage waste from the constant slipping.
You really don't want to spend $99 on a converter that is too close to "stock" when another $30 or so will get you where you need to be. Remember, this is a truck, it is heavier than a car, which most of this stuff is intended for...

[CrazyJesster]

so if i couldnt afford the converter and with it beeing a truck and heavier. whould it be ok to use a stock converter for a while

im really on a limited budget here and can get the motor in and running cause i got all my parts