cam for stock 383

[fourizza]

Hello everyone,

I've been searching around the forums for suggestion on a good cam for a pretty much all stock 383 in a 69 charger. I know keeping the engine stock is going to limit my choice in cams. I'm just looking for a lumpy sounding cam at idle but I'm a noob when it comes to cams so not sure which size would work the best. I am going to get the heads resurfaced and the rear end rebuilt. which is another question I have. Any good suggestion on a torque converter? I was looking for something that revs up a bit before moving. I searched around the forum but didn't find much.

Thanks in advice

 

[Garys1969RR]

The Magnum cam with a .484 lift and 284 adv duration is good. Will work with a stock torque converter. I am running a 509 Purple shaft with .509 lift, 292 dur. Needs a 2200 or higher stall converter. Wont work with power brakes. But likes compression, higher gears, and good flowing heads. Good luck.

 

[Meep-Meep]

Do you plan on removing the heads to change the valve springs? Essentially have the heads set up for the new cam? If not then you are very limited. If you have Magnum springs you are OK in the .450" lift range but if you have the 2 BBL springs you will need to change them.

 

[fourizza]

Thanks for the feedback, we will be replacing the springs but I'm not to sure what they are. They came with the 440 heads and they're double springs, which is going into it. From what I've been told whats in there now is single springs. Im really just looking for that lumpy sound from a cam.

 

[Sweet5ltr]

.472 or .484 lift MP Camshaft would be your best bet.

 

[Meep-Meep]

Be careful with a lumpy cam and not having enough compression to make it run properly. I wouldn't run the 484" MoPar cam in a stock short block. I have the .455" in my 440 with 10:1 and it runs great and has a nice mellow rumble to it. And you use a single spring with about 110 lbs on the seat - http://www.summitracing.com/parts/DCC-4286677/

 

[rlsbee]

The Magnum cam with a .484 lift and 284 adv duration is good. Will work with a stock torque converter. I am running a 509 Purple shaft with .509 lift, 292 dur. Needs a 2200 or higher stall converter. Wont work with power brakes. But likes compression, higher gears, and good flowing heads. Good luck.

I agree that this is a good cam and it works well with a stock converter. I use this cam in my 383 Bee. I built this engine quite a few years ago. When I did this cam had a fair amount of lobe seperation (112 or 114 I think). Mopar revised this cam with a lobe seperation of 108. I think that's the only one available now. I would definitely use the newer one. It would have much better driveability. While my car runs pretty good, it took me a long time to figure out how to get it to run the way I wanted. I use the 906 heads which are mildly worked. I've found that I had to put a lot of initial timing in with 36 total.
I'd like to hear some some results of somebody using the 108 centerline cam.
Here's a video of my car at idle.
http://www.youtube.com/watch?v=NBEwTFBcprE&feature=g-upl

 

[fourizza]

Great video, we'll probably use a cam with a lift around .455 or .484 depending on if my father wants to get more aftermarket parts. He really wanted to keep it all stock but he also wanted it to sound good too. And that summit link is useful, thanks

 

[kidmopar]

i got a 268 hi energy comp cams new in the box if youre interested

 

[ykf7b0]

Great Advice!!!

Be careful with a lumpy cam and not having enough compression to make it run properly. I wouldn't run the 484" MoPar cam in a stock short block. I have the .455" in my 440 with 10:1 and it runs great and has a nice mellow rumble to it. And you use a single spring with about 110 lbs on the seat - http://www.summitracing.com/parts/DCC-4286677/

I agree totally! The MP Purpleshaft 484/284 cam is 241 @ .050 and is not recommended for a low compression engine. I have ran the Summit 282/292 cam that is 224/234 @ .050 with 465/488 lift. It's a great cam for a low compression big block MoPar.

 

[copper67440]

I agree totally! The MP Purpleshaft 484/284 cam is 241 @ .050 and is not recommended for a low compression engine. I have ran the Summit 282/292 cam that is 224/234 @ .050 with 465/488 lift. It's a great cam for a low compression big block MoPar.

The MP cam I have in my stock short block 383 is over 25 yrs old. I don't remember the CL # But runs just fine I have 906 heads and the MP double springs.
http://www.forbbodiesonly.com/moparforum/showthread.php?t=33384

 

[MoparMitch]

Im going with a Comp 274 High Energy in my stock 383 4spd car Has power disc brakes , but I think it still be alright.

 

[ykf7b0]

The MP cam I have in my stock short block 383 is over 25 yrs old. I don't remember the CL # But runs just fine I have 906 heads and the MP double springs.
http://www.forbbodiesonly.com/moparforum/showthread.php?t=33384

If that short block you speak of is a 67 stock short block then it should have a fair amount of compression unlike the short blocks manufactored after the gas crisis in 73. I went back to the first post of this thread and read that the person asking for advice has a 69 and I will agree with you that the 284/484 MP cam would be ok (not great) but I like his choice of Comp 274 better because it has much less duration @ .050. I'm basing my information on previous experience and MoPar Performance recommendations listed in their catalog.