hello guys,i hope im in the right topic
ok guys dont laugh at me, but im overseas and here in italy there aint no body that knows what there doing when you start talking about performance...
i did alot of wrong moves till now,but now i hope thats over

my motor is a 4 bolt main with a eagle 383 stroker kit the heads are remanufacterd moore nc and the casting numbers are 140 then erased :confused: the intake manifold is a weiand and a holley 670 street advenger carb and headers dont know the cam specs. the motor runs good it now got 1500 km. on it with no problems yet..

i aint no pro but i think them heads got to go :sad:
can anybody help me pick some good heads for my motor, i dont want nothing radical i just want that 383 to flow good,maybe hit about 350 HP.

ok guys hope you dont kick me out of here after all these stupid quetions

thanks ron

Need compression wanted/running now, cam,converter,rear gear,what you want it to run, and use (cruiser or racer).

too many stupid question -------- youre outa here!

hey thats how we learn, as long as there are people who know and are willing to help you'll be alright.
I think if its a mild performance build, and more of a cruiser 200cc heads will be fine.
now, whats your budget, do you want as cast, cnc'd, or as cast and get them ported?
TFS, Pro Action, Canfields would be decent as cast heads to start with for around $1000.
Cnc'd stuff would more - I'd look into Dart, Brodix. The cnc can be worth a lot of power 50-75hp.
And heads done by someone who knows what their doing, (for your combination) can be worth even more.
But since youre not after every last hp get some decent as cast heads and be happy.
200cc runners will do fine for everything on a 383, from a mild cruiser to makin good power if ported.

i aint no pro but i think them heads got to go :sad:
can anybody help me pick some good heads for my motor, i dont want nothing radical i just want that 383 to flow good,maybe hit about 350 HP.

I would suggest the GM vortecs should give you an easy 360 horse. $ 580.00 Jegs
Quality and price they would be perfect for you IMO.

Well I just threw on a pair of Patriot's on my 333", stainless roller rockers and all for under $1,000
I am VERY pleased with the performance but i did a new big cam, team-g and others.
I could tell a big increase from the crappy old smog heads (though they were not stock).

The only problem is the rocker studs are not spot on but after 65 miles of drive time i inspected the valve train and everything looks fine.

Brodix is probably the best sbc head for race but afr is most likely the best for street. Afr and brodix (especially brodix) are very expensive. But you get top notch quality.

Need compression wanted/running now, cam,converter,rear gear,what you want it to run, and use (cruiser or racer).

hi doug,
well the compression needs to be freindly with pump gas..
dont know what compression its running now..
cam;dont know specs,but its mild and not wild..
converter;10" 2500 rpm staller with a pumped up th350 tranny(not on the car yet,but on its way over from the states)
rear gear;3.42 posi
well i dont really want to race the car, but i want a bad ass cruiser,am i on the right track?

thanks ron

Are the pistons a flat top design? Heads will have to be chosen around the piston design to come up with a pump gas friendly combo with a short/mild cam. Flat top pistons will give ~11:1 compression with 64cc combustion chambers. That probably won't work with a mild cam and pump gas. See what type pistons you have.

too many stupid question -------- youre outa here!

hey thats how we learn, as long as there are people who know and are willing to help you'll be alright.
I think if its a mild performance build, and more of a cruiser 200cc heads will be fine.
now, whats your budget, do you want as cast, cnc'd, or as cast and get them ported?
TFS, Pro Action, Canfields would be decent as cast heads to start with for around $1000.
Cnc'd stuff would more - I'd look into Dart, Brodix. The cnc can be worth a lot of power 50-75hp.
And heads done by someone who knows what their doing, (for your combination) can be worth even more.
But since youre not after every last hp get some decent as cast heads and be happy.
200cc runners will do fine for everything on a 383, from a mild cruiser to makin good power if ported.
hi,
whats cnc'd?
ok cast heads means cast iron like gm vortec right?

ron

i aint no pro but i think them heads got to go :sad:
can anybody help me pick some good heads for my motor, i dont want nothing radical i just want that 383 to flow good,maybe hit about 350 HP.

I would suggest the GM vortecs should give you an easy 360 horse. $ 580.00 Jegs
Quality and price they would be perfect for you IMO.

hi chris,
wow! that sounds pretty good...


thanks ron

hi,
whats cnc'd?
ok cast heads means cast iron like gm vortec right?

ron


As cast = Iron or Aluminum. Once they are poured into the mold, the only work done to them is the machining for valves, studs, spring pockets, etc.. The runners and chambers are left with the rough finish of the mold.

CNC = Iron or Aluminum. The heads are ported and the chambers are cleaned up with a machine. The CNC machine has a program it follows to open up the runners/chambers. Most times, increased air flow is the objective.

Are the pistons a flat top design? Heads will have to be chosen around the piston design to come up with a pump gas friendly combo with a short/mild cam. Flat top pistons will give ~11:1 compression with 64cc combustion chambers. That probably won't work with a mild cam and pump gas. See what type pistons you have.

hi fever68,
i sent a foto to your email of my pistons,i told you guy that im learning know and im not positive about nothing,and i dont want to make no stupid mistakes no more.( i hope no more)

thanks ron

170 to 195 cc heads would be good for the street.... but as said above, you need to know cam and piston specs to know what cc chamber heads to get. 64cc could put you at 11:1 or more and then pump gas would not work.

Aluminum or steel heads is your choice, and as cast would be fine.

ok guys?
i got flat top pistons, but how do i get the cam specs?


ron

Pull the timing cover and pull the cam and look at both ends and post back everything thats on both ends and hopefully we can decode what it is for you.

Otherwise, the other way is to degree it w/ a big crank degree wheel and a dial indicator.

Use this link for SCR.

http://www.rbracing-rsr.com/compstaticcalc.html

And this link for DCR.

http://www.rbracing-rsr.com/comprAdvHD.htm

And we try to hold DCR down around 8 to 1 for good pump gasoline use over here in the states!

I like the .015" and .020" thick shim headgaskets and I also use the stock, about a DITH piston of .025" to calculate SCR.

And like -5 cc's for flat-top piston valve notch cc.

We need to decode the cam for you so that you can use this link to figure the cam timing too!

http://www.rbracing-rsr.com/camshaft.html

pdq67

wow!!
thanks pdg67,but its getting to complicated. i think im going to keep it the way it is,the motor runs good so il wait...


thanks to all you guys
ron

hi,
whats cnc'd?
ok cast heads means cast iron like gm vortec right?

ron


CNC = Computerized Numerical Control, and like Ray said it's a program. Insofar as heads goes its main beauty is that each port and chamber will be identical, as well as pretty.:). Expensive and you don't need it.

Ronald, don't run away we didn't mean to intimidate you. We're just accustomed to it. You can do it too dude. You could always just put a decent set of same cc as you have now cast iron heads and see how it does.

Vortecs, as well as all other heads are lift limited so you really need to know what cam you have. May be a good opportunity to swap it out and have what you want. But you can figure out how much lift you have at the valve now easily.