i just finished putting my sbc engine together and was hoping to get around 650hp this is what i have in it
scat forged 3.750 stroke crank, scat forged h-beam rods 6",keith black forged 2 valve pistons .030 bore, dart platinum iron eagle 49cc heads 2.05int 2.05ext, 640 lift cam 370 duration full roller,kevko kickout 9 qt. oil pan,lunati roler lifters,cloyes adjustable timing chain,crane gold 1.6 roller rockers, super victor jr. intake, aluminum high flow water pump,speed demon 800 racing carb

 

what is the actual duration of the cam?

 

at .050" lift

 

I dunno man....your expectations sound a little high. The rotating assembly seems a little on the heavy side and I don't think those heads are capable based on the valve size you listed. And I think you mean 2.05/1.60 on the sizes. Cam lobe design as well as seperation is key too. What will your compression be?

 

Without really knowing much about what's in there, i'd say you'd be lucky to push 450HP.
How about some part numbers?
Heads and cam. and pistons. That's all that really matters.

 

the heads are 49cc chambers,215cc intake runners, 2.05int 1.60 exh.
the cam is 294int duration 302exh, 260int at .050 268exh, 640int lift 640exh, 106 lobe centerline, compression is supposed to be around 13-1

my machinist told me the wrong cam size the duration was way off but this is the cam i got

 

650 is feasible but your gonna have to wind her to the moon, and the carb will have to be bigger, at the very least

 

well thats good news lol
im gonna get a dominator 1050 cfm carb for it, thinking about putting two stages of nitrus on it too 150 and a 300

 

i have a ? im new to 3rd gens i just bought a 85 T/A, the person i got it off of said it has a corvette 350 TPI swap in it but the motor looks exactly like the 305TPI how can i tell so i can start ordering parts?

 

well there lies a small problem, as far as i know a 305 and a 350 look identical on the outside.
the easiest way to find out what motor you have would be to find the casting number on the block and look it up. the number should be on the lip on the back of the motor behind the drivers side head

 

thanks so much can i post the number on hear and get feedback you think? Im new to all this but hope to learn and build a mean T/A

 

if you post it on here then you should be able to find out what it is.
my friend has a parts interchange book that tells you everything about heads,block,cranks,etc.... by their casting numbers. i think you can get one locally at a parts store but not sure

 

thanks for all the help