Zero4488

iTrader: (10)

Alright...well I've decided to do a H/C package. The only thing is I'm going to be using LS1 heads.

Comp Cams
LS1 3712R/3714R
intake - .562
exhaust - .566
lift - 271 275
113 centerline
duration 218 222

now here's my question....would these valves be good for my setup?
1.6 exhaust and 2.1 intake?

Manley Valves

part # 11365-8
part # 11350-8

Let me know your opinions....

ONEBADWS6

iTrader: (22)

2.1 intake valve is way to big for your 3.9 bore. Don't go bigger than a 2.05

Zero4488

iTrader: (10)

What is the valve size on a 205 cc AFR head?

JPH

iTrader: (2)

i would use a 2.02/1.57 imo.

Zero4488

iTrader: (10)

what would be a disadvantage to breathing too much? What are some reasons for not going bigger? I know bigger isn't alway better...but why in this case?

Zero4488

iTrader: (10)

BUMP..reasoning behind it?

Beaflag VonRathburg

iTrader: (176)

I don't even think a 2.1 valve will fit a 3.90x bore. Even if it did you would have extreme valve shrouding issues and a heavier valve.

Zero4488

iTrader: (10)

So what size valve would you think would go idealy with my setup...I still wanna use my spray though too....

Zero4488

iTrader: (10)

bump....looking for some input...trying to start buying things soon...

Beaflag VonRathburg

iTrader: (176)

You could read the thread.

+1

Zero4488

iTrader: (10)

You don't gotta be a smart *** about it...I'm asking questions for multiple people's opinion's on what size valve...am I to know your going to recomend the same size as some one else??