LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

difference between TPI and LT1 height?

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Old 03-26-2013, 02:05 PM
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Car: 1984 Z28 T-TOP
Engine: 355 Lt1 w/Hotcam
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Axle/Gears: 3.73 4th gen limited slip
difference between TPI and LT1 height?

I am looking to see if there is a big difference in the height between the TPI and LT1. I am trying to get technical assistance from a company about a ram air box that works for the TPI. So far noone has either emailed me or called me back. So, I'll try to figure it out myself. I wonder if it will fit on a LT1 too since they essentially have the same throttle body. Is there a major difference in the height in which the two throttle bodies sit on the engine? The TPI looks to be somewhat elevated, wheras the LT1 sits flush on the intake manifold.
Old 03-26-2013, 02:07 PM
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Re: difference between TPI and LT1 height?

Yes, probably close to 3" taller on the TPI.
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