What stall converter?

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GTSDustin

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Before I call summit tech, figured one of you guys could help.
Putting a 474 purple shaft in a 10.5-1 .30 over 360. Could I use a stock converter? If not what stall should I use? Thanks for any input. Dustin
 
What gears are you running?It would like a good 2800/3000 stall IMO.It will run fine on less of a stall but a quality 2800/3000 stall would wake it up.

It will run on the stock converter but it will be sluggish until you hit some rpm's.
 
Sorry forgot... 3:23 sure grip
I don't have a stock converter actually, the car had a 545 lift cam with a I believe 3200 stall when we bought it. I want to make it more streetable so I downsized to a 508 purple shaft with a 26-2800 stall. Car wouldn't stay running in gear. That's why I'm now leaning towards a smaller yet cam and hear the 474 is a great cam.
So the 26-2800 stall should be the ticket? Thanks for the responses!
 
Much better cams out there Mopar performance are old and outdated..if you go with the .474 a stock converter is all you need.
 
Contrary to what some in here say, the 474 may be small on lift, it's approximately 238 at .050 duration cam. That's NOT small and would like more than a stock converter. I'd run a good 3000-3500 that is built tight on cruise. Not some off the shelf slop converter.

Advancing the cam, ahead from the 106 ICL, would help with bottom end performance.

Get the tune up right, not enough initial timing sounds like a possible issue.
 
I have always had good results with the 280-.474 cam in big blocks.Decent idle and the power comes on sooner than the larger cam profiles.Don't need any more than a 3.55 gear either.Sure there are "better"/newer cams out there but these still work.If you already have one then use it.If not nothing wrong with looking at other brands.

I am sure the .508 didn't like the 3.23 gear either.Your converter would be a good match for the .474 or equivalent cam.
 
Post #7 comes from real world experience. I would keep that in mind.
 
I have always had good results with the 280-.474 cam in big blocks.Decent idle and the power comes on sooner than the larger cam profiles.Don't need any more than a 3.55 gear either.Sure there are "better"/newer cams out there but these still work.If you already have one then use it.If not nothing wrong with looking at other brands.

I am sure the .508 didn't like the 3.23 gear either.Your converter would be a good match for the .474 or equivalent cam.

Ok, that's what I wanted to know, thanks.
Oh, it didn't even make it out of the garage. Shut off in drive and I got fed up and tore her down again.. I hate automatics. Lol
 
So what would you guys recommend over the purple shafts? I see comp has a .474 very similar.
I want this thing to be streetable, with a nice sound. Nothing too radical.
This thing was an absolute dog, I been in stock 318s with more umph than this had. So I figured instead of putting lower gears in it I'll just put a more driver friendly cam in.
 
Nothing. Use what you HAVE. It will work fine.
 
Nothing. Use what you HAVE. It will work fine.

No kidding. Good luck with it. You'll be buying lots of parts you don't need.

ex: 340, 10:1, with a 292/508 camshaft and it idles OK with a hughes 2500 converter. Must be magic, but, it's not. I bet your tune up is WAY off base.
 
Buddy of mine runs the Comp cam .477 in his "smog motor" 318 says right on the cam card largest cam that can be used with a "stock" converter..seeing as you already have a 2800?? stall converter i'd go with the Lunati Voodoo .475/.494 over those OLD mopar designs..
 
You didn't say what tranny/converter you have (sorry if I missed it). The factory 904 converter that have the sticker that says "high stall" usually brake torque to about 2100 with a 318 2bbl. I would guess a .030 over 360 would push it to 2300 rpm's, and would work great. Yes, a good aftermarket would work better.
 
And some people actually know what they're talking about...too bad most listen to bad advice:banghead::banghead::banghead:
 
Listen to Crackedback.... Best knowledge ever.

A simple way to determine what converter is needed, have your stall just about 200 rpm above the beginning powerband of the cam. This is a rough idea but gets you in the ballpark.

If your 508 cam was stalling going into gear with the stall converter you said, once again Crackedback said it. Sounds like initial timing. That cam needs about 20-22* initial timing to run good That is where custom advance bushings for MSD distributors come into play so you don't go more than about 34-35* total.
 
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