Trottle Body on LT1

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Jul 2, 2002 | 02:49 PM

mat89RS

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Joined: Apr 2001

Posts: 884

Likes: 2

From: Québec

Engine: LT1

Transmission: 700r4

Trottle Body on LT1

Can I put a 87 Trottle body on my LT1 motor ? Is it the same thing ???

I can have a SLP trottle body 900 cfm for 45$US...

Jul 2, 2002 | 08:47 PM

John Millican

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Joined: Feb 2000

Posts: 2,361

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From: Savannah, GA

Car: 1997 Jeep Wrangler

Engine: 4.0L

Transmission: 5 speed

Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer

The sensors ( IAC and TPS ) have differant shaped connectors so they will need changed. Throttle cable is differant so that's another change.
Other then that it will bolt right up.

Jul 3, 2002 | 02:01 PM

6speedIROC

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Posts: 722

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From: Ottawa, Ontario

Car: 86 IROC

Engine: LQ4 6.0L

Transmission: T56

Axle/Gears: 3.55 8.8

Check the IAC casting, I think they are the exact same shape on the two..the LT1 will bolt to the bottom of the old TB, so you don't have to worry about you IAC..rewire the TPS and you're laughin'!!

Jul 3, 2002 | 02:10 PM

mat89RS

Thread Starter

Senior Member

Joined: Apr 2001

Posts: 884

Likes: 2

From: Québec

Engine: LT1

Transmission: 700r4

Cool, thx. hey guys, I also have another Trottle Body of a regular TPI, 48 mm ... can I grind up all the midle meat and put one big air trap ? as this been done before ?