Ok, so i'm in the process of building a semi-budget minded 383 build.. I bought a CC503 w/ less then 5k on it awhile back for $150 back when I was going to build a stock crank, stock headed 355.. Well plans changed and now I have a fully forged 383 Callies setup w/ slightly ported stock casting(flow #'s below) and am thinking the cam might be too small.. I've got pretty much all the supporting mods(setup below) but i have been out of the game for awhile now so i dont want to overpower myself as this will be the first car with some actual power that I have driven in 5+ years.. I'm waiting to buy a custom grind after I get more seat time with the car and can afford to get the heads re-ported..

So my questions are:

What cam would you guys reccomend that would get me around 7.5's in the 1/8th mile?

 

Why not use what you have for now and see how it runs? Then if you have your heads professionally ported you can pick up a custom cam to match the flow #'s. Maybe you'll get lucky and the heads won't need much work.

 

I love 383s because if you set them up right you can have a motor that makes great torque and hp without spinning it to the moon which makes for an outstanding street/strip set up...I'm all about cams with smallish duration (no more than 230 @ .050) and big lifts to .570" with stock ported heads...An off the shelf grind that works very well is the LPE 219/219 .560/.560" on a 112...Most will say that its wayyyy tooo small, but Lingenfelter knew what he was doing...

The 503 is a good cam for duration, but a little shallow on the lift even with 1.6s, but it's not a bad choice either. I run a Joe Overton spec'd custom that in the 220/230 range with .568" lift and its just awesome in my set up...You don't need big gears and big converter if you go with smaller duration and bigger lifts...

--Alan

 

ok, so i guess i'll just stick with the 503 until I get some seat time and get the suspension worked out..

Another question,

I need a new balancer and flywheel so which ones should I get? I want it all internal.

Thanks for ya'lls help guys!

 

I think you'll be fairly impressed with the 503. Get everything running right.

 

c'mon Alan.. give us guys that "spin to the moon" a little credit.. it's alot of fun, even on the street.

 

X2!

 

I'm not knocking the high revving 350/355 guys...I give you guys tons of credit...Its just not my thing...Javier, your car is badass without a doubt and runs as it should...

My motor has been togther for 12 years and I think part of the reason is the relatively low rpms it sees...I dig smaller cams with bigger lifts and they work well in 383s...

If I can get this thing into the 11.teens at my next track outing and have it do it by only going to 6300 I think that's pretty cool, too..

--Alan