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swapping 305 for 383, identify some parts off old tpi motor

Old Oct 22, 2005 | 06:10 PM
  #1  
CamarosRUS's Avatar
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From: Louisville, Ky
Car: 1991 Z28
Engine: 383
Transmission: T-5
Axle/Gears: 3.08 10 Bolt
swapping 305 for 383, identify some parts off old tpi motor

three things i need identified right now...there is a black box connected to the pass side of the plenum (pic 1) what is that for?

next is a black piece with a couple vacuum hoses running to and from it (pic 2). its located right next to the coil, what is that?

finally what is the sensor located under the plenum used for?

Last edited by CamarosRUS; Dec 30, 2006 at 12:32 PM.
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Old Oct 22, 2005 | 06:11 PM
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CamarosRUS's Avatar
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From: Louisville, Ky
Car: 1991 Z28
Engine: 383
Transmission: T-5
Axle/Gears: 3.08 10 Bolt
pic 2

Last edited by CamarosRUS; Dec 30, 2006 at 12:32 PM.
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Old Oct 22, 2005 | 06:36 PM
  #3  
transporter's Avatar
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From: Jeffersonville, In (Louisville, Ky)
Car: 92 Z28
Engine: 305 TPI, Edelbrock headers, 3in Flowmaster exhaust
Transmission: 700R4
Pic 1 is the MAP sensor and pic 2 looks like the EGR selonoid. It mounts under the ignition coil in the same holes.
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Old Oct 22, 2005 | 10:30 PM
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
The sensor under the plenum is a MAT -manifold air temp- I believe. Someone correct me if I'm wrong.
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Old Oct 22, 2005 | 11:13 PM
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From: West Palm Beach, FL
Car: 1991 Z28
Engine: SBC
Transmission: 700R4
Axle/Gears: 2.73
yea the first is the map sensor...the heart of speed density
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Old Oct 23, 2005 | 10:56 AM
  #6  
CamarosRUS's Avatar
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From: Louisville, Ky
Car: 1991 Z28
Engine: 383
Transmission: T-5
Axle/Gears: 3.08 10 Bolt
im moving to a stealthram setup and that doesnt have an EGR provision so what should i do with the the EGR soleniod?
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Old Oct 29, 2005 | 01:23 PM
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From: NOR CAL USA
Car: 89 iroc-z 5.7tpi 350,
Engine: 5.7tpi 350,
Transmission: T-56
Originally posted by CamarosRUS
im moving to a stealthram setup and that doesnt have an EGR provision so what should i do with the the EGR soleniod?
take it out,

and save it in a box of parts,
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Old Oct 29, 2005 | 01:32 PM
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CamarosRUS's Avatar
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From: Louisville, Ky
Car: 1991 Z28
Engine: 383
Transmission: T-5
Axle/Gears: 3.08 10 Bolt
thanx! exactly what i needed
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Old Oct 29, 2005 | 02:15 PM
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
I just swapped over to a stealth ram setup- I just took my whole TPI setup off- EGR and all, reassembled it, and have it sitting in the corner of my garage for when I need money or emissions testing.
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