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Old May 29, 2006 | 02:45 PM
  #1  
tarheeljww's Avatar
tarheeljww
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Instructor
15 Year Member
 
Joined: Oct 2004
Posts: 179
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From: gainesville florida
Default ls2 throttlebody

I have several questions.
1. What size is the ls2 throttlebody
2. Does it fit a ls1
3. Does the ls2 manifold fit a ls1, and how does it compare to a FAST.

I am changing my ls1 to a ls6 complete with cnc heads, and want to know the best route to improve preformance.

Thanks,
Jw
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Old May 29, 2006 | 05:28 PM
  #2  
Blow Torch's Avatar
Blow Torch
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Joined: Nov 2003
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From: Dublin GA
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1.The LS2 is a 90mm TB
2.It will not fit a LS1 or Z06 intake (both are 75mm)
3.The LS2 intake will fit the LS1 engine, but it is usually not considered as good a manifold as the Z06, and not nearly as good as the FAST, which is considered by most to be the best for highly modified or stroked engine
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