Endangered Species Parts list

[XfireZ51]

I saw that Pete had posted for sale 2 Secondary Injector Relays. That got me to thinking about some other “unique” parts and more specifically the LT-5 has that do not appear to have substitutes in the Corvette world.
These are the kind of parts that our ZRs cannot run without. IOW, the motor is a boat anchor.
Maybe some of u would like to add to this list if u can think of anything.
As a start:

1. Ignition Control Module
2. Ignition Coil Housing
3. Secondary Injector Relay
4. Piston Rings

Feel free to suggest other parts.

[-=Jeff=-]

ECM
Oil temperature sensor 90-91

Not motor related
Rear bumper
Rear quarter panels
Doors
Body trim

[billschroeder5842]

Thermostat housing
Interior console trim with "power" switch

[aafc]

As for interior console trim with "POWER KEY" you can use a regular console
trim from 90-91 just cut out a hole to fit the "POWER KEY" like i did when i added the automatic trans back in 2004.

10640

[tccrab]

ABS relay (1990 model year)

Rear Bumper Facia (any year)
Rear Bumper Side Mouldings (any year)
Rear License Plate Surround (any year)


'Crabs

[We Gone]

These are also common to all C4

Original black steel Clutch Master cylinder
Clutch neutral safety switch

[Young1]

Camshaft position sensor

[spork2367]

I saw that Pete had posted for sale 2 Secondary Injector Relays. That got me to thinking about some other “unique” parts and more specifically the LT-5 has that do not appear to have substitutes in the Corvette world.
These are the kind of parts that our ZRs cannot run without. IOW, the motor is a boat anchor.
Maybe some of u would like to add to this list if u can think of anything.
As a start:

4. Piston Rings

Feel free to suggest other parts.

Piston rings is arguable as others have had luck with the total seal replacements.

ECM


Arguable as the megasquirt unit is pretty much plug and play (with minor tuning).


Thermostat housing


Why would you ever need a replacement thermostat housing?

Rear Bumper Side Mouldings (any year)

'Crabs

Rear ZR1 specific aftermarket bumper moldings have been available on Ebay for about a year.

Camshaft position sensor

There is a workable replacement for this, just not OEM.

[XfireZ51]

Total Seal does not have rings compatible w our motors. Have not made them since early 2010’s. There are no rings they know of that would fit our ring grooves.

Sorry but MS is not plug and play, not to mention u lose CCM comms.

[spork2367]

Total Seal does not have rings compatible w our motors. Have not made them since early 2010’s. There are no rings they know of that would fit our ring grooves.

Sorry but MS is not plug and play, not to mention u lose CCM comms.

specifically the LT-5 has that do not appear to have substitutes in the Corvette world.
These are the kind of parts that our ZRs cannot run without. IOW, the motor is a boat anchor.

You didn’t say “exact OEM part.” You said “substitute.” There are substitutes the car will run with. You don’t need a fuel mileage calculator to drive the car. If you meant OEM equivalent replacement, then you would be correct.

Total seal still has the rings in their catalog and would make them if you wanted to pony up.

I have a MS on my 1990 so I’m aware of its plug and play-ability as well as its limitations.

I work in an industry where we support 50+ year old legacy engines, so I live this every day. Hell, I deal with 4-5 vendors that were suppliers for OEM LT5 parts.

[XfireZ51]

Spork,

I think u r “splitting hairs” here but if u look at my initial post and the initial listing, there’s nothing that even “substitutes” for those items.

[DRM500RUBYZR-1]

Delco Fuel Pump and Sender Assembly

ZR-1 Emblem Genuine

Corvette Script Genuine

Genuine GM Coolant Hoses and Clamps

A Mold Wheels Genuine and New

1993 Rear Wheels Genuine and New

Dual Mass Flywheels New

Windshields of course


Marty

[Jagdpanzer]

OEM or correct Stant 14068 thermostats seem hard to come by these days


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[XfireZ51]

I’ll echo partially Spork’s comments. My initial premise for starting this thread was to highlight parts that, in the absence of, essentially turn our ZRs into boat anchors. There certainly are parts that are discontinued but due to reasonable
adaptation, they don’t constitute a mortal wound to the operation of a ZR-1.
Having said that, it certainly could be helpful to have a listing of these discontinued and hard to find parts along w a listing of attainable substitutions and put that all in one place, ie fuel pumps, cam sensor,
fuel pressure regulator, vacuum solenoids etc.

[Ccmano]

Based on recent experience, power steering pumps are getting difficult.
H
:cheers: