twocamaros

hey guys my motor is gonna be done rather soon.(next couple of weeks) i wanna see what you guys think about my combo an how much hp youll think ill get
383.. steel crank rods.. not positive on the brand used its either scat or eagle with arps holding them together
speed pro forged... should be about 11-1
edlebrock performer heads..(port job) dont know how much more cfms ill be gettin its just a basic job
somewhere around 550 lift cam.. has not been decided yet
super victor intake
holley 750 double pumper
hedman long tubes 1 5/8s
if you guys can help on cam selection that would be awesome... this is not a daily driver.. i dont care about gas millage... doesnt have to be real streetable... has to have a big lopie idle... an i dont know if a turbo 400 changes any cam selecting..

91Z-28

I have a book about chevy small block valvetrains, and they make around 500hp on an HR282XR from Comp Cams (230/236 .544/.554 110 LSA with 1.6). That is with out of the box TFS 215cc heads though, if you don't care about streetability then why not go with a bigger cam like 242/248 or just go solid roller? With 300cfm heads you'll be getting 500+fwhp all day with a 383 and huge cams. You also might want to go with 1 3/4" headers, and some people like to widen the powerband by decreasing the LSA with 3 speed transmissions. When I say decreasing I mean decreasing the overlap, increasing the "LSA number".

twocamaros

i cant go for bigger headers because i cant afford it as of now(im 19)...im not goin roller either cant afford it..but i can go with a big **** cam.

91Z-28

By the way I am just a novice, I don't actually know that much just what I read in all my engine building books and on the internet, so don't take what I say too seriously.

twocamaros

ok nice car by the way... sounds sick.. i hope mine sounds just as good

91Z-28

How about the comp XR294HR:

242/248 .540/.562 w1/.5 110 LSA

That is what I'd call a "big ****" cam. It'll be a pretty high RPM cam though, it is best to get your heads flowed and accurately match a cam to it.

damien8618

forget the big cam, a lopey idle is just the engine missfiring. If you start messing with big cams you better be ready to rebuild your car one peice at a time as it breaks. I'd stick with a smaller cam and instead tune the carb and ignition. there's a ****load of things you can do to your engine that wont cost much and will make it gain power.

damien8618

when you consider a cam start at the back of the car and work your way to the front, rearend, gears, driveshaft, transmission, tourque converter...

twocamaros

the engine is gettin dyno tuned by the shop.. thats costin me a extra 400 bucks.. for the rear end.. its a 9 bolt(gonna be beefed up) 3:42 gears.. steel stock driveshaft... turbo 400 trans.. an for a torque converter well skys the limit ill go with a 4k converter if i plz..... im trying to get the fastest cheapest car here.. trying to do 10's under 10k invested

damien8618

tell me more about your engine. Is it drilled to redirect oil flow and coolant flow? Does it have a crank scaper and windage tray? How much oil do you run in it when you race it? Is the crank turned under any? What size are the rods, stock or long? Is the cam retarded? What size rocker arms?

twocamaros

i honestly couldent tell you.. its on of my friends shops so hes assembling the whole the an givin me a real good deal.. im gettin the hole motor for about 2500... for the oil though i have a moroso 6 quart.

damien8618

oh, then I guess everything is stock. Yor problem is you're worrying about what kinda cam to put in it and not caring how its being built. When it comes to engine building the smallest details are the most important. A race prepped blue printed engine with a stockish cam is alot better then a stock engine with a big cam.

twocamaros

my friend is takin care of me.. he built the fastest GTP in the world..im just trying to figure out what kinda cam i should use..

damien8618

well if your friend knows so much about engine building why don't you just have him pick the cam?

twocamaros

because he doesnt own a carbed 383 car. tons of u guys do...an i respect allot of answer from here