C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help Identify a LT1 throttle Body

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Old 05-14-2024, 07:29 PM
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AmoriFati
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Default Help Identify a LT1 throttle Body

Hey, I have one throttle body I know for sure came off of a 1993 Corvette LT1. But the other is supposedly off of a 1993 also, but its throttle linkage is a bit different. My 1993 Corvette has ASR, so only one cable going to the throttle body, even though I have a 4L60 non electronic. You adjust the TV cable via the ASR.
Is this throttle body from a Camaro? And if you also notice, it doesnt have a IAC hole drilled in it, and this is a TPIS 52mm throttle body they modified an OEM one with..


No IAC passage on TPIS, lower one.



OEM THrottle Body 93 Corvette

TPIS throttle Body
Old 05-15-2024, 06:27 AM
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'78CorvetteS.A.
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Originally Posted by AmoriFati
Hey, I have one throttle body I know for sure came off of a 1993 Corvette LT1. But the other is supposedly off of a 1993 also, but its throttle linkage is a bit different. My 1993 Corvette has ASR, so only one cable going to the throttle body, even though I have a 4L60 non electronic. You adjust the TV cable via the ASR.
Is this throttle body from a Camaro? And if you also notice, it doesnt have a IAC hole drilled in it, and this is a TPIS 52mm throttle body they modified an OEM one with..


No IAC passage on TPIS, lower one.



OEM THrottle Body 93 Corvette

TPIS throttle Body
GM 17095238....'95-'96 Fleetwood, Road Master, Caprice, Impala👍
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Old 05-15-2024, 06:49 AM
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AmoriFati
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Little Update, the TPIS is a 94 from a Z28 LT1
Still not sure why the IAC has no hole drilled like the OEM, as they use an OEM casting
Old 05-15-2024, 10:14 AM
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AmoriFati
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Originally Posted by '78CorvetteS.A.
GM 17095238....'95-'96 Fleetwood, Road Master, Caprice, Impala👍
Thnx again. I am going to see if it works on the 1993 Corvette.. Linkage is a bit longer, and I think I can adjust the throttle linkage on the 93 with ASR. I have done the whole ASR, 1/8" drill bit with inch /lbs torque wrench. But, I think I can do the throttle independently.

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