A Few Questions About My New Setup

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Nov 9, 2007 | 10:58 AM

Zero4488

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From: Jersey

A Few Questions About My New Setup

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....

Nov 9, 2007 | 12:34 PM

ONEBADWS6

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From: Chicago

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

Nov 9, 2007 | 03:04 PM

Zero4488

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From: Jersey

Quote:

Originally Posted by ONEBADWS6

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

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

Nov 9, 2007 | 04:34 PM

JPH

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From: Fort Wayne, IN

i would use a 2.02/1.57 imo.

Nov 9, 2007 | 11:09 PM

Zero4488

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From: Jersey

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?

Nov 10, 2007 | 11:54 AM

Zero4488

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From: Jersey

BUMP..reasoning behind it?

Nov 10, 2007 | 02:48 PM

Beaflag VonRathburg

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From: Jax Beach, Florida

Quote:

Originally Posted by Zero4488

BUMP..reasoning behind it?

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.

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Nov 10, 2007 | 08:47 PM

Zero4488

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From: Jersey

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

Nov 11, 2007 | 11:51 AM

#10

Beaflag VonRathburg

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From: Jax Beach, Florida

You could read the thread.

Quote:

Originally Posted by JPH

i would use a 2.02/1.57 imo.

Nov 11, 2007 | 12:20 PM

#11

Zero4488

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From: Jersey

Quote:

Originally Posted by Beaflag VonRathburg

You could read the thread.

+1

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??