<


View Full Version : Best cam for a killer street 383


shawntmartin
06-13-2007, 03:27:23 PM
When my ZZ4 needs a ring job, I'm pulling it and making it a 383. Ill probably look into a new cam and stall. I have a 228/235 cam now that works with a 2000 stall. I'm just curious what you guys think would be a killer street terror cam for a 383. I've heard that larger cubes will tame a cam more than if it was used in a lower cube engine. So should I go 240+ on the intake and duration? 2500-6200 range?

Gimme all of your opinions for the best street cam. I will match the converter and the Compression (pistons in the kit) after the fact


383
Edlebrock RPM manifold
195cc Trick Flow heads
? stall
? CR (10:1 to 11:1..nothing more)
3:73 gears
1 3/4 headers
650 cfm carb

cmonson
06-13-2007, 03:34:20 PM
talk to reed cams.

www.reedcams.com

I am completely happy with my custom grind.

BS282DP
HP Brute
Brutal Ground pounding torque. Strong mid to upper range power with modified O.E.M. or aftermarket heads in the180- 200cc range, moderately aggressive idle. Power range 2600 - 6200. Needs 10:1+ comp, 2000 to 2400 conv, 1 5/8” + headers w/2.5”+ exhaust, high rise dual plane intake w/spacer & 750+ carb, 3.73+ gear.

BS282DP 228 / 232 .480 / .486 110 106 2600 – 6200

shawntmartin
06-13-2007, 04:28:40 PM
Curious on the converter compared to the RPM range of the cam in the description. Also, those specs say that cam is almost exactly the same dur. (slightly smaller on the exhaust) than the one I have now. But mine has a bunch more lift (.530) How does that cam, which is slightly smaller, have an operating range thats higher than mine?

Brute Cam: 228/232 dur. .480/.486 lift 2600-6200
My cam: 228/235 dur. .520/.530 lift 2000-6100

Thats confusing?

Dirt Reynolds
06-13-2007, 05:32:31 PM
Gimme all of your opinions for the best street cam.

Gimme? :screwup:

As to a 383 cam, while you can run a bit more duration over a similar 350, it is not the same as camming a 400 which can really handle a lot of camshaft relative to the smaller engines, because it also has a huge bore (4.125"-4.185" depending on over-bore) and that also makes a big difference in cam specs. The point here is to not get carried away with sticking too big a camshaft into a 383. That cam you already have looks great for what you are proposing in your spec sheet, to be honest. With an RPM intake and 750 vacuum secondary Holley like a 3310 the above combo should make for a stout street engine. A 240° @ 0.050" cam is fairly big in a 383 and will require at least a 3500 stall. And at that point if you stay roller you should be using a solid street roller. A buddy of mine has the Crane #118521 244°/252° 112° LSA street roller in his 11.5:1 383 with AFR 210 heads with the Comp. package, Super Vic, 830 annular 3800 stall and 4.56 gears in a '72 Camaro RS. He says the stall is too low for this cam but he prefers it to running more converter, but his car runs 11-teens full-weight with a Goodmark steel cowl hood, shifting at 7000 RPM.

In any case, as mentioned, I would use the cam you already have and see how you like it. It looks to me like it would be well suited to your engine combo and make great power. Going bigger than that to the 240° - range will mean you'll need to make other changes to your combo making it a little less street friendly and skewing the power curve to higher RPM.

fabio
06-13-2007, 06:01:46 PM
decide on your compression first. If those heads are 64cc chambers then you will be over 11:1 with a 2 valve relief flat top pistons or close to 9:5 with an inverted dome. If you go with the inverted domes then your current cam/converter will work great.
The reason why that brute cam has less lift than your hr is because it's a hydraulic ft cam. Reed also has a stroker line, but I'm not sure if they do it in a hr.

Mwilson
06-13-2007, 06:43:27 PM
big compression bigger cam!!!!

Goat
06-14-2007, 08:01:55 AM
Quote, "you should be using a solid street roller" Dirt Reynolds
:confused:

shawntmartin
06-14-2007, 10:32:00 AM
- My block is all set for a hydraulic roller and my lifters are like new. Its just easier to stay HR.

- I used "gimme" instead of "give me" because its faster to type and you still understood it.;)

- MWilson, "gimme" your recommendation.

- Reed cams suggested a 235/243 dur. .522 lift 108LSA with a 2700-3000 stall. I asked for meanest sounding cam I can run that would have great power from 2500-6000. Should re-think the RPM range?

Rick WI
06-14-2007, 11:20:28 AM
Unless you plan some some significant upgrades to your roller valvetrain as well as intake no, you don't want to alter the RPM range. That intake will begin to fall on it's face at 6000 in a 383 and your valvetrain will be unstable above that point as well.

If Reed can grind in more lift with that cam that's always a good thing. The heads will like that. Otherwise that's about the duration range I'd stay in given your carb, intake, valvetrain.

shawntmartin
06-14-2007, 12:24:48 PM
My current cam is 228/235 .530 lift and goes from 2000-6000. If going from a 350 to a 383... would you up the cam a little to the one reed recommends? 2700-3000 stall. Or is it slightly too big? i just want to do this right the first time. They have great prices so I will be buying form them...but I just don't know which cam spec. Yet. My heads only flow 1 more cfm from .500 to .600 and max at .600 so if any cam is anywhere past .500 lift I should be good to go right?

Rick WI
06-14-2007, 12:32:02 PM
The faster you get the cam to lift, with the same duration, the better the flow curve. Trust me on that, it makes power. Doesn't matter on the 1 more CFM between .5 and .6 except that that head doesn't stall and fall on it's face in that range.

That's not a lot of duration for a 383 with 10:1 compression. Your rear gears are fine in that range and even 2500 stall will work just fine.

shawntmartin
06-14-2007, 12:47:33 PM
[QUOTE]That's not a lot of duration for a 383 with 10:1 compression.[QUOTE]

Sorry, are you talking about my current cam or the one Reed recommends? I'd like to go with their rec. if it ain't too big.

Rick WI
06-14-2007, 12:53:07 PM
The Reed cam.

fabio
06-14-2007, 01:07:11 PM
that cam will sound good, look up drivewfo videos, he has a similar cam and also a 383. His car sounds great in those videos.

pdq67
06-14-2007, 09:29:46 PM
Call UDHarold up here--------

"I work for Custom Camshaft Company, a division of Arrington Manufacturing.
I stay at my house in Senatobia, MS, and telecommute to work in Martinsville Va. My office phone is 662-301-1245, and so far I'm having to take my wife to work, she's a Staff Accountant in Memphis, so I'm not here before 9:00 AM CST or from 4:00 PM to 6:00 PM CST. I answer the phone when it rings, and have sold several cams to Team Chevelle members." ----------

and ask him for his recomendation!

And please say hello from old pdq67

pdq67

PS., and fwiw, he designed CC's old 268HE and others and Lunati's new VooDoo line as well as his old Ultradyne Cam's!! So he flat know's his stuff, imho!!

You WILL get SOTA!!

Dirt Reynolds
06-14-2007, 11:08:32 PM
Shawnmartin -- Comp has a hyd roller pretty close to those specs at 236°/242° @ 0.050" on a 106° LSA that makes tremendous power and torque using the XFI lobes. Joe Sherman built a 10:1 pump gas 383 using that cam and RHS Vortec heads with 1.94/1.50 valves, and an RPM intake with a 750 carb. It made 523 ft/lbs torque, 540 HP through the mufflers on the dyno.

HULKZ28
06-14-2007, 11:34:12 PM
I like the reed recommendation...The lower LSA will give it a nice hard hit....
Hulk

HULKZ28
06-14-2007, 11:36:51 PM
That comp cam Dirt mentioned looks real good too..

Dirt Reynolds
06-15-2007, 03:03:47 AM
Tommy (67lemanster) runs that cam in his 421 and raves about it.

shawntmartin
06-15-2007, 08:15:44 AM
All excellent suggestions.. Thanks you all for your input!!

67lemanster
06-15-2007, 09:52:16 AM
Tommy (67lemanster) runs that cam in his 421 and raves about it.


hehehehe hey thats me. thanks man. but actually that cam(the comp was in my 383) i run a 250/250* @ .50 solid in the 421. but back to the joe sherman cam in my 383.

shawn it rocks. its proven power. go here and see my post. then dirt posted about the joe sherman cam via comps website. go there and troll http://www.nastyz28.com/forum/showthread.php?t=64165&highlight=joe+sherman

i called comp and ordered that cam on a billet core with pressed on iron dizzy gear. with my 1.6 rockers lift cam in at about .600. its a retro cam. comp hydro lifters and the cloyes retro cam front cover with built in cam button. now in order to make you motor run like his i would recommend the comp ls1 beehive springs. i put them in my motor and they are pricey but i wanted to follow the directions pretty closely. you will need new spring pockets and retainers and locks. the car pulled like a mule. great power. but it was done at about 6100 so dont expect a whole lot more.

the motor had a semi nasty idle. the 106 contributed to that. buy had great street mannes. the motor with that cam actually sounds like it has more sack than my 421 solid roller does at idle. but as they say sounds can be decieving. lol you will not be unhappy with the cam but get the spring also. fthe beehives will help control the aggesive lobes of the cam and you will need that plus you wont be running huge x large spring pressures.

to be honest the 650 imho wont be enough. call patrick at prosystems and have him build ya a carb for it. he built my carb but the specs for my carb were based on my 421 build. so it was a little fat at idle but still pulled awesome. if you want a killer 383 for the street that motor will be one. it will give you great street manners and should give you plenty of vacuum to run a brake booster. i also ran the air gap intake with a 1" spacer.

hope that helps. tommy


edit just read that you have a roller block so the cloyes cover you wont need or the expesive retro roller lifters. still go with the beehives. like rickwi posted you will need to control on the valves.

here is the cam at idle http://i6.photobucket.com/albums/y217/lemanster/th_MVI_0162.jpg (http://s6.photobucket.com/albums/y217/lemanster/?action=view&current=MVI_0162.flv)

hhott71
06-15-2007, 10:26:49 AM
The Crane HR # 119841 in a 355 has my 71 Camaro in the 11.20's
Rest of our set ups are similar.

Converter, TCI 10" super street fighter with baloon plates. 3500-4000 stall

Dirt Reynolds
06-15-2007, 06:41:08 PM
Hey Tommy -- that idle vid sounds nasty! What RPM is that idling at?

67lemanster
06-15-2007, 10:00:42 PM
Hey Tommy -- that idle vid sounds nasty! What RPM is that idling at?


900-1000. yeah i wish my 421 sounded like that. lol

pdq67
06-16-2007, 01:49:24 PM
I'm GONNA say this AGAIN!!!

"Call UDHarold up here--------

"I work for Custom Camshaft Company, a division of Arrington Manufacturing.
I stay at my house in Senatobia, MS, and telecommute to work in Martinsville Va. My office phone is 662-301-1245, and so far I'm having to take my wife to work, she's a Staff Accountant in Memphis, so I'm not here before 9:00 AM CST or from 4:00 PM to 6:00 PM CST. I answer the phone when it rings, and have sold several cams to Team Chevelle members." ----------

and ask him for his recomendation! You will get SOTA!!!

And please say hello from old pdq67

pdq67

shawntmartin
06-16-2007, 02:05:13 PM
????

You say that, again, like I'm still asking for recommendations, still asking for help, and still confused on what to do. But, I haven't asked any questions since the last time you posted to call him.

pdq67
06-16-2007, 04:12:08 PM
Sorry, I'm getting ahead of myself trying to tell you to CONTACT HIM is all!!

I honestly figure you can't go wrong getting this info from the Man That Know's!!

pdq67

slimlynn1
06-16-2007, 10:03:04 PM
The Crane HR # 119841 in a 355 has my 71 Camaro in the 11.20's


I have the same cam in my 383, 10.4:1 compression and IK-200s, that is a nice cam.