IVRedZ28LS1

iTrader: (3)

I bought the book HOW TO BUILD HIGH PERFORMANCE CHEVY LS1/LS6 V8's by WillHandzel. It says that you can replace your early 75mm LS1 throttle body with a 6.0 liter LQ4 80mm throttle body for more airflow on a LS1. Is this true? Has anyone tried it? Or know anyone that has attempted to install the 6.0 liter Throttle body on there LS1? Thanks.

IVRedZ28LS1

iTrader: (3)

I got a hold of a 6.0 liter LQ4 VIN U throttle body out of a 05 Chevy Express Van that has a 6.0 liter in it. Please let me know the pro' and con's of this. Thanks. Measured the throttle body with a micrometer it measured 74.85mm? Is this right? So its just a 75mm throttle body like my stock throttle body?

Or am I just better off buying a Shaner S3 throttle body?

jimmypop13

iTrader: (17)

I say bolt it on and find out if it works! I dunno if the bellows with fit over it or not though

IVRedZ28LS1

iTrader: (3)

Has anyone done this Mod lately?

staringback05

iTrader: (8)

port it....take your dremel, port your 75mm and you can get it around a 78mm area....save you a good bit of money

IVRedZ28LS1

iTrader: (3)

Thanks.

lsx24

iTrader: (45)

Is the body 80 mm or the blade opening 80 mm? That would make a difference because even on a ported stock throttle body the blade opening stays consistant, it doesn't get ported. Although I don't know how much it would help anyway, because of the standard (how wide?) opening to the ls6 intake manifold...

rcjoe

iTrader: (2)

im wondering the exact same thing.. if you can put a lq4 tb cable on an ls1

TT402LS1

iTrader: (5)

I Have a TB off a 01' LQ4. Its 75mm. Maybe the LQ9 has a 80mm, Im not for sure.

staringback05

iTrader: (8)

fellas look at how much work yall will be doing for less then 2mm's....you can port out the stock pretty thin....you could also just go get a bbk 80mm tb....and not deal with adapting the throttle cables and some other things