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Mar 23, 2010 | 12:50 PM

FreebirdWS6

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Staging Lane

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From: Sperry,Ok

throttle body

How big throttle body can I put on stock LS6 intake?

Mar 23, 2010 | 01:47 PM

fastvet

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From: !!!!TEXAS!!!!

I think its the BBK's 80mm one. Im not sure if you can port it from the 85mm opening the LS6 has to a 90mm opening.

Mar 23, 2010 | 01:52 PM

Joshiedoom

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BBK is a joke. Port the stocker, save your cash till you go with a FAST intake.

Mar 23, 2010 | 01:57 PM

FreebirdWS6

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From: Sperry,Ok

I feel the same you about BBK! what size fast intake should I get? cuz I have a MS3 and 2.5 5.3 heads and bigger injectors.

Mar 23, 2010 | 02:00 PM

Joshiedoom

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From: Between Bowling Green/Owensboro

Quote:

Originally Posted by FreebirdWS6

I feel the same you about BBK! what size fast intake should I get? cuz I have a MS3 and 2.5 5.3 heads and bigger injectors.

Depends on your budget.

My justification on BBK is a joke is the fact that every BBK TB ive dealt with has had a sticky idle no matter what.

Mar 23, 2010 | 02:17 PM

FreebirdWS6

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From: Sperry,Ok

I can afford a FAST intake,should I just go with a 92mm intake and TB and call it good?

Mar 23, 2010 | 02:36 PM

Joshiedoom

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From: Between Bowling Green/Owensboro

Quote:

Originally Posted by FreebirdWS6

I can afford a FAST intake,should I just go with a 92mm intake and TB and call it good?

Thats up to you. lol.

But yeah, I would if I were in your shoes.

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May 15, 2011 | 11:03 AM

svede1212

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From: Grand Rapids, Michigan

My joke ported and polished BBK 80mm works like a charm and have never had any sticking problems. It has helped me put down some great numbers on a LS6 mani 460/418. The stock inlet on a LS6 is 75mm and the stock TB is 75mm. The BBK 80mm comes with an adapter plate to neck it down to the 75mm manifold inlet. I bolted the adapter plate to the mani and used a die grinder to open up the adapter tapered end and followed it into the manifold. I was able to open it up to 79mm. That's an 11% increase in area. I hope to put down very high 400 RWHP when I go to get her re-dynoed after my recent head install