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Old 04-24-2011, 07:37 PM
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383 Cam Selection What I got versus what to go with

Hello Iam working on a project its a 82 swb chevy with a 383 in it... I have set of Procomp Alum heads on it
190 cc runner,
64 cc chamber,
1.60 exhaust,
2.02 intake,
.550 lift springs

I have a Elgin cam in it now E1006P sounds very nasty What i was wondering about this set up is how much HP do I possible have versus going with another cam?

-Also I have large tube headers 3" all the way out..
-650 Eldelbrock Carb.
-Double Roller TimeChain..
-Dual Air Gap intake you can stick your hand under the carb..
-looking to put 4:11's in it not sure what do you guys think?
-2400 TCI Stall i know it may be to small..
-just a Holley fuel pump nothing special there..
-The shop where I got it from says 11:1 compression..

Using the cam above am i going the right way for hp and torque or should i reconsider??? Please help..

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Old 04-24-2011, 07:55 PM
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just so i dont have to look up the cam, you should post the cams specs on here. adv duration, duration at .050, lift, lsa, cl

without this info, we can't really help you out too much.

what size tires are you running, what transmission is in it. one thing i migh look into is getting rid of the 650 eddy carb (sorry never been a fan of eddy carbs) 650 vac secondary on a 383 putting out about 400+hp is a little low, a 3310 holley 750 vac sec carb would be a perfect fit (IMHO)

i have a little bit of a hard time believing the 11:1 CR, what fuel are you running, and if you still have the cam card what is the intake overlap.

this is just complete personal opinion but i think you would do better with 1 5/8" primary headers and 2.5" exhaust to give you a flatter tq curve, since this is in a truck
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Old 04-24-2011, 08:03 PM
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The cam Elgin E1006P
Chevy- 244/254,
.510/.533 w/ a 107/117
Lobe Center

I have some regular tires on it right now 16" on the carb i got it rebuilt but that 750 sounds much better... I think thats what iam going to do..
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Old 04-24-2011, 08:05 PM
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93 oct with a oct booster
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Old 04-24-2011, 08:09 PM
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Th350 with a manual valve body not sure on the gears in the rear but I know the are stock..
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Old 04-24-2011, 08:13 PM
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okay i would go smaller on the cam, it is possible that you could get away with running 93 ocatane with that cam at 11:1 but that isn't easy and rare.

those ProComp (190cc) heads are not known to be the best performers (you get what you paid for) the cam is too much for them (IMHO) i would look into a cam around 230-236/ 278-284 range of 2500-6000 (ish) 110-112LSA (112 if you acutally do have 11:1) and .490-.510" i dont think those heads will want to turn that motor past 6K at all (not in "out of the box" form)

the cam is just a bit much

what is the entended use of the truck, if you want a street/strip truck then the cam doesn't sound horible (not what i would pick) but the heads need work. but if you want a quick street truck then i would go with a smaller cam and leave the heads alone, and go with smaller primary heads and exhaust, torque is what kills on the street not hp
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Old 04-24-2011, 08:26 PM
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I had a cam elgin cam in it that was around 230/236 but when I drove my brothers 72 chevy it was kinda like night and day... So what I did was go back into mines and was thinking bigger may be better and so thats why I went with that big cam... i just test drove mine the other day and like I say sounds mean But the power on the low end on the other cam I had in first seems to be more... so with this big cam I have now should I see a big difference after maybe 4000 rpms? Got to maybe 2nd gear and ran out of road.. The front end stayed up the hole time but getting there seem a little long..
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Old 04-25-2011, 06:35 AM
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The cam you got needs a 3500-4000 stall and 4.10-4.56 gears in a truck.
More gear if the tires are very tall.
This cam wants to rev and does not get busy until 3000++++rpm

recurve the distributor for 26deg at idle and 36 at max advance.
or simply lock out the mechanical advance and run 36deg locked timing+ some vacuum advance for cruising.

Otherwise get a smaller cam. 216 to 224@.050"
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Old 04-25-2011, 07:16 PM
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I think thats what I am going to do.... Thank you guys for all your!
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