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Which LS2 TB

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Old

Sep 27, 2023 | 08:59 AM

#1

Bobbo76

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From: Nova Scotia Canada

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Which LS2 TB

I bought a used NW TB which has proven unreliable so went back to the oem 78mm TB. This caused a loss of about 35 whp on my A&A equipped 383. By NW recommendation the LS2 TB is the solution.
Am i looking for a "silver blade" or "gold blade" and is there a required adapter harness?
Any other suggestions would be welcomed.

Thanks all!

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Old

Sep 29, 2023 | 04:21 PM

#2

Invictus

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Quote:

Originally Posted by Bobbo76

I bought a used NW TB which has proven unreliable so went back to the oem 78mm TB. This caused a loss of about 35 whp on my A&A equipped 383. By NW recommendation the LS2 TB is the solution.
Am i looking for a "silver blade" or "gold blade" and is there a required adapter harness?
Any other suggestions would be welcomed.

Thanks all!

For a C5, you want the silver blade LS2 throttle body. You'll need an LS1 to LS2 throttle body adapter cable (Amazon). The gold blade is not tuning friendly.

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Old

Oct 3, 2023 | 10:23 AM

#3

Bobbo76

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As I suspected. Thanks for the info. I'm hoping to make a purchase from a member on here.

-Rob

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Old

Oct 4, 2023 | 10:37 PM

#4

_zebra

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From: cold & windy

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LS7 take-off is the same part as the silver LS2 tb (to broaden your search parameters)

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Old

Oct 5, 2023 | 08:30 AM

#5

Bobbo76

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Quote:

Originally Posted by _zebra

LS7 take-off is the same part as the silver LS2 tb (to broaden your search parameters)

Oh? Thanks for the tip!!!

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