Do you think this cam is to big?

Posted By: dan6412

Do you think this cam is to big? - 10/26/09 01:33 AM

My son and I are doing a 383 budget build for his Superbee. This is what we are working with. 69 383 HP stock bottom end (very good running just pulled from a charger 3 months ago) 906 heads w/about 5000 miles on them. We are going to run a set of Hooker header, weild intake and 650 carb. My question is I have a new in the box Mopar performance cam that is a 509 lift at 292 duration do you think this is to big of cam for what we have. If not will the stock springs work? Also the car is a 4 speed.

Posted By: R70RUNNER

Re: Do you think this cam is to big? - 10/26/09 01:41 AM

Way too much cam for stock 383 even with the stick. And no the stock springs wouldn't work anyway

Posted By: dave571

Re: Do you think this cam is to big? - 10/26/09 02:04 AM

In general, I agree with that.

It's gonna be a pig.

BUT if you have your heart set on it,springs will need replaceing, perhaps the guides cut down for retainer clearance, and a bunch of gear(391's or better).

Even an hp 383 won't be 10:1 comp in real life (the pistons would have to be domed for that with 906's) so depending what your goals are, you are likely better with something a lot less

Posted By: DaytonaTurbo

Re: Do you think this cam is to big? - 10/26/09 02:16 AM

No matter how tight the budget is, DO NOT put that cam in it. That cam is designed for everything you don't have : high compression, high stall(edit, realized your was a 4-speed but I still don't think that would help enough to make me want to run this cam in your 383), numerically high rear gears, and a full 440 cubes would help.

If the budget is that tight, I would rather run the stock cam. If you still want an aftermarket cam but don't want to spend $$$, I'd look at the summit cam/lifter kits. The small summit kit K6400 is roughly equivalent to the stock 440-hp cam. And it should work fine with your current springs.

Posted By: R70RUNNER

Re: Do you think this cam is to big? - 10/26/09 02:41 AM

Even the .484 cam is HUGE in a stock 383... (I tried it)FWIW I'd sell that .509.. For some reason people still go for the old MP grinds and they resell pretty easy! Or do some horse trading for something better suited... Voodoo 60301 or the mentioned Summit cam

both should get by with your springs

Posted By: sthemi

Re: Do you think this cam is to big? - 10/26/09 04:13 AM

I put that cam in a stock 440... it sounded great!

but it was a total slug to drive..everyday performance was BAD..NO fun

I changed to a .471 Street hemi style grind and it woke right up, a really good choice for a stock motor.

Posted By: dan6412

Re: Do you think this cam is to big? - 10/26/09 04:23 AM

Thanks every one thats what I was thinking it was a little on the over kill side. I got it in a parts deal. So up for sale she goes. We will stick with the Crane thats in it now like I said it ran very well as it was.

Thanks again.

Posted By: patrick

Re: Do you think this cam is to big? - 10/26/09 02:03 PM

if you're looking for a good cam that will be a power upgrade from the cam that's in there now, I'd use a lunati voodoo 60302 with comp 911 springs.

Posted By: Dodgem

Re: Do you think this cam is to big? - 10/26/09 02:31 PM

I would run it all it needs is a little cam advance and it will kick ##$. you should upgrade the springs to 33's or some comp cams ones
http://chucker54.stores.yahoo.net/valvesprings2.html
The 509 is a great cam and in a four speed it will be fine. Most inexperienced posters don't know how to set them up. They are best with mild no brainer cams. Hey if it don't work installed as I say it's and easy enough out!!! (but it will work)So Install it with the intake centerline (max lift) at least 4 advanced in at 102 or maybe even 100 and it will have all the life and pop you want!
I personally love this cam for the street and light strip. But unlike most above I like all the power you can get and have learned over the years how to make bigger cams work to get low end and max power!!

Posted By: Dougsmopars

Re: Do you think this cam is to big? - 10/26/09 09:44 PM

The 509 is a bad choise all around for a stock motor. Don't care how far you set in advance. Why to much cam for no comp and no gear. Go with the stock hemi grind or lunarti 302. you'll be happy. Sell that 509.

Posted By: plumebody

Re: Do you think this cam is to big? - 10/26/09 10:17 PM

I actually had good luck with the old 509er. 383 9:1,duel plane,3.91's 2800 stall. 12.50's in a challenger.

Posted By: DrCharles

Re: Do you think this cam is to big? - 10/27/09 01:08 AM

Although "too big" does seem to mean different things to different people, I ran a .484 in a basically stock '69 383, A-body, 4-speed, 3.23 rear and it was a blast on the street.
Also the original Direct Connection "Engine" book mentions running the .509 in a Duster with an 8.5:1 400 and it was pretty quick (mid 11's?) been a long time since I read through that book though.

Posted By: kruger

Re: Do you think this cam is to big? - 10/27/09 01:09 AM

Quote:

I would run it all it needs is a little cam advance and it will kick ##$. you should upgrade the springs to 33's or some comp cams ones
http://chucker54.stores.yahoo.net/valvesprings2.html
The 509 is a great cam and in a four speed it will be fine. Most inexperienced posters don't know how to set them up. They are best with mild no brainer cams. Hey if it don't work installed as I say it's and easy enough out!!! (but it will work)So Install it with the intake centerline (max lift) at least 4 advanced in at 102 or maybe even 100 and it will have all the life and pop you want!
I personally love this cam for the street and light strip. But unlike most above I like all the power you can get and have learned over the years how to make bigger cams work to get low end and max power!!

I agree.Some guys put there cams in per card specs and wonder why there speedboat launchs like a tugboat.When Mopar Performance test there Purple Shaft cams they advance them 2dg's and list them as such(Mopar Engines 8th Edition).But not that way on there cam cards.
If you do decide to try the 509,get some springs and 391's and check the piston to valve clearence after you adavance it.4 speeds need alittle more VP clearence

Edit:Uuuum you have the lifters to that cam too? Shoot me a pm after you decide

Posted By: moper

Re: Do you think this cam is to big? - 10/27/09 02:13 AM

The .509 makes power. But the wrong type for a street car. Assuming the poster who disagree are ignorant shows a heck of a labido. I've run the .509, and I've taken them out when they are all wrong. For the poster's need it's wrong. There are MUCH better cams out there, and even if you do want to run 70s technology the 21st century low bidder manufacturing stinks on them. Do yourself a favor and have the block blueprinted and run something designed for modern all around performance. In any case, replace the springs to match your cam choice. Stock springs are too weak for any perfomance cam worth buying.

Posted By: R70RUNNER

Re: Do you think this cam is to big? - 10/27/09 02:31 AM

Quote:

The .509 makes power. But the wrong type for a street car. Assuming the poster who disagree are ignorant shows a heck of a labido. I've run the .509, and I've taken them out when they are all wrong. For the poster's need it's wrong. There are MUCH better cams out there, and even if you do want to run 70s technology the 21st century low bidder manufacturing stinks on them. Do yourself a favor and have the block blueprinted and run something designed for modern all around performance. In any case, replace the springs to match your cam choice. Stock springs are too weak for any perfomance cam worth buying.

I didn't even bother to respond to the other reply.. . why start a

I have neither the interest or time for it

My only comment will be figure out the dynamic compression on that 383 with that cam...And the OP hasn't even offered the gearing in the car yet.

Agreed the 02 voodoo would be a very good choice and was my initial thought, but still trying to keep in the guidelines set by the OP (his current springs.) I went more conservative

Posted By: TonyS451

Re: Do you think this cam is to big? - 10/27/09 12:02 PM

If you have a 3.91 or steeper gear, and want to switch to a single plane intake, and shave the heads for more compression, swap in the correct valve springs, and add 750 double pumper...it will work fine and should run in the 12's depending on your shifting. If you would prefer to keep everything you have the same, I would not go bigger than say the hemi grind.

Posted By: joedust451

Re: Do you think this cam is to big? - 10/27/09 02:25 PM

The .509, i personally like this cam, works really good for a bracket cam for its low price, they are also nice for a street car, but only if you don't mind building the engine/drivetrain around it to get the full potential out of it, for such a small lift, they are very aggressive with lots of overlap & dur. & .50", but not really a good choice for the adverage street cruiser with a mild combo, your overall combo on the car is conservitive, so stay conservative on the cam, you'll be much happier.