Your car should be making more than 330rwhp with stock heads with that cam, thats what I was trying to say. Either tune tune is off or something else is.

 

My car made 324/365 with A/F in the 10:1 range, with stock heads and stock bottom end, through a stalled automatic and a 12 bolt rear.

 

Who the hell cares ?!? Point of the thread was to not be afraid to use the stock top end on a 383 if all you can afford is to build an already toasted bottom end. So what if you dyno higher with a stock bottom end. Also who cares about being able to spin a street car to 7k. When the top end of that motor finally gets done then it'll dyno a number and most likely a better number than a similarly equipped 350-355. I just don't understand these "I did better than you with less so you suck" posts. A lot of these type of posts have been flaring up on this board and its getting really annoying.

 

a motor akes power in its top end so......heads cam intake would definatly net more power and a stroker is only as good as it top end bigger cubes need air!

 

I agree with you, and do understand the point of the original post. Now that
he has posted his cam specs, it adds a new dimension to the thread. IMO the
cam selection was too extreme, unless he does not want to do a cam change
when the heads are done. For the best performance with the stock heads, a
hotcam, Crane 227, LPE 211/219, TPIS ZZ9, GM 845 or the like should have
been used. A 383 with long tubes, a small cam, and all the other supporting
mods should be in the 350-360 range.

Good food for thought because a cam change in the car is a much bigger pain
in the a$$ than a head swap. I would probably do the exact same thing given
this choice and knowing that a set of ported heads was a year or two out. This
is of course assuming no smog requirements. If smog was a consideration, the
small cam would be a must.

 

I disagree... although the poster did not disclose the lift specs... you don't need such a tiny cam in a stock head car.

I consider the 224/230 cc503 a small cam, and it took my stock shortblock, stock head, stalled automatic to almost 113 mph trap speeds.

You can go relatively large on stock heads and still move pretty quick.

 

I like your idea. I too am on a budget. When I rebuild I wont do more than a 355 but if you have big plans then the 383 is a great idea when you HAVE to rebuild and intend on bigger cubes in the future. The budget racer must be smart enough to save money when he can.

 

I'm not sure anyone is afraid of putting the stock heads on top of a 383, but most people know they won't make very good power, as demonstrated by this thread. I'm not bashing J Rod, but he's also not really telling us anything most of us didn't already know.

Good luck when you put heads on the car J rod.

 

Unfortunately, if you need to pass smog, the biggest cam that will pass in
a 383 is probably the CC503. This is a non-issue for most, but important
if it's one of your goals. I have not seen a 503 pass in a 350 in CA. Hotcams
seem to barely pass.

 

It seems like a similar discussion as headers. Most think that you are completely
stupid to not put a set of long tubes on an LT1. It depends on what you
want to accomplish. Sometimes it's fun to make decent power without what
some consider a "key" component. It's amazing how much fun you can have
with a car that has a stock idle and no headers.

 

I'm building a 383 right now that will have stock heads with CM612 springs on it. My cam choice is a bit smaller at 219/227 but it'll be a torque monster and keep the rpm's down since its a daily driver.

 

Replacing a blown shortblock I can see this but to advocate it as a modification IMO is foolish. Those afraid of decent heads and cam on a 350 are only the ones who have not tried it.

 

Of course you can have fun with a stock idle and no headers. Man, I had just as much fun in my stock LT1 as I'm having with my 396 LT1. I don't think whether he's having fun was ever in question. I'm not trying to argue - so long as he's happy with his setup, why should anyone else have a problem with it?

 

im not gonna bash your combo.. it sounds like you did what you wanted to accomplish and thats all that matters.. trash talkers can go **** themselves.

to offer some constructive criticism tho.. your combo should be making more power then that. considering there are cam only 350s putting down 350-360 im guessing somethings been overlooked on your car. have it retuned good, check a/f ratio, timing,etc. and you shoud pull 350 out of it without too much problem.

 

Is this one of those omgmydynoisbetterthenurdyno threads?