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Old 08-04-2004, 08:02 PM
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383 Camshaft

needs sum help lol.... Alright i aint quite there yet but just planning ahead....the motor is going to be a 383 stroker with 9.1 compression with 76cc heads most likely going to be world product sportsman II's but i need help picking out a camshaft.. its going to be a daily driver and going into a 1985 monte carlo (non SS) the trans is a th350 with a B&M shift kit and for the rear end i do not know the gear ratio... sorry, maybe one of you guys know tho but its a stock weak rearend in a 85 monte carlo a one wheel wonder lol.... couple more ?s Which intake and carb for the carb ide prefer a holley but which size do you guys think i should go with?? and last what do you guys think of the world product sportsman II heads on the 383

Any suggestions at all would help me!

Thank you!

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Last edited by Mightymouse; 08-06-2004 at 10:33 AM.
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Old 08-07-2004, 06:39 PM
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anybody im not feelin the love here guys lol j/k
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Old 08-07-2004, 07:27 PM
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Hold yer horses junior. It ain't on fire.

9-1 in a 383 with iron heads, You got more than a few options on the camshaft. Here's a few.

Comp XE 274 hyd
Comp Magnum 280 hyd
Comp Magnum 282 solid
Comp XE 282 solid
Crane Powermax 278H hyd
Crane Powermax 280 solid
Crower 00322 282 solid
Isky Megacam 270/280H hyd
Isky Megacam 280/290H hyd
Isky Z25 solid
Isky Z27 solid
Lunati 30012 hyd
Lunati 40134 solid

As for the carb and intake, again there are a boatload to choose from. For a street car stick with a vac sec in the 650-750 range and a dual plane intake. Of the above cam choices the ones with a wider lsa would make better choices for a street car because of idle issues with an automatic.

Hope this helps a bit

Larry
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Old 08-07-2004, 07:42 PM
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Thanks alot

lol i wuzent in a hurry
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Old 08-07-2004, 09:22 PM
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Sportsman IIs are okay. I have a pair on my 400. I would go with the Motown 220 heads if you ever want it to have the potential to be a lot faster later. Try and shoot for 9.5:1 compression or better, and use one of the cams listed below.
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Old 08-07-2004, 09:53 PM
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hey thanks.. ill look in too them motow 220 heads n for the compression i wuz thinkin that too

Thanks
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Old 08-07-2004, 10:02 PM
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If you use the Motown heads, you will gain back all of your bottom end if you can run at 10:1 or higher. Just make sure that whatever cam you pick is recommended to be run with that ratio. I would get a cam with over 220o @ .050".

Make sure you calculate your compression ratio correctly also. There are a few ratio calculators on various websites. I use the one on the Keith Black pistons site.
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Old 08-07-2004, 10:08 PM
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yea but will 10.1 run on pump gas with them motown heads?

Thanks for the replys
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Old 08-07-2004, 10:13 PM
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I am at 11:1 with the Sportsman IIs, using 91 octane.

You just have to make sure your combo will be a true 10:1.
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Old 08-07-2004, 10:14 PM
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Alright Thanks alot!
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Old 08-08-2004, 12:20 AM
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Why do we keep thinking backwards here? OKOK I know we don't always have the money / luxury to do this but if heads and pistons and intake etc are not bought yet...... Start looking at things this way.

What is the car going to be used for?
What kind of tranny and weight of car are we talking here?

1 pick a camshaft that will do what we now want from this car.
2 NOW pick heads that will flow the way this cam demands.
3 now pick pistons that together with the head cc's gives us the correct ratio that the cam wants.
4 next pick the intake that will supply the heads properly.
5 last comes carb decisions that feeds the whole combo.

Too many times we work in reverse here and then wonder why it doesnt perform like we really want it to.

Just my humble opinion.
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