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Old 07-27-2008   #1
Paul Workman
 
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Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
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Unhappy Gonna need a heater core...

Are there any heater cores that cross-reference to a 90 ZR-1? I'm assuming by the fogged windshield (at times) and the carpet soaked on the passenger's side that my heater core is shot. It could be a hose or fitting, I suppose, but that wouldn't be consistent with my usual luck!

Any suggestions where to round up a core??? Mucho appreciation.

P.
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Old 07-27-2008   #2
Polo-1
 
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Default Re: Gonna need a heater core...

Thats not going to be a fun job
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Old 07-27-2008   #3
-=Jeff=-
 
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Default Re: Gonna need a heater core...

I believe all heater cores L98,LT1,LT4, and LT5 are the same

try Rock Auto.

as for the heater core replacement, Good luck
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Old 07-28-2008   #4
Paul Workman
 
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Default Yeah...I'd sooner kiss a pig...

Quote:
Originally Posted by -=Jeff=-
I believe all heater cores L98,LT1,LT4, and LT5 are the same

try Rock Auto.

as for the heater core replacement, Good luck
...than tare into the dash for the heater core...That never seems to go well, in my experience. [sigh].

P.
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Old 07-28-2008   #5
-=Jeff=-
 
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Default Re: Gonna need a heater core...

Paul, now I may not be able to come there and help, but can answer questions when you are ready to pull it
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1990 Corvette ZR-1 #1051
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Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
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Old 07-28-2008   #6
Ccmano
 
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Default Re: Gonna need a heater core...

Considering we rarely use our cars in the winter or if you just like having a car where "everything works" I think I would consider just bypassing the heater core and forgeting about the hassle of replacing it.

Hans
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Old 07-28-2008   #7
PhillipsLT5
 
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Default Re: Gonna need a heater core...

Or move to AZ & bypass
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Old 07-28-2008   #8
GOLDCYLON
 
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Default Re: Gonna need a heater core...

Quote:
Originally Posted by Paul Workman
Are there any heater cores that cross-reference to a 90 ZR-1? I'm assuming by the fogged windshield (at times) and the carpet soaked on the passenger's side that my heater core is shot. It could be a hose or fitting, I suppose, but that wouldn't be consistent with my usual luck!

Any suggestions where to round up a core??? Mucho appreciation.

P.
Paul nasty job. I see them on Ebay all the time. No difference in the Heater core than in any other C4. Man I dont envy you that job. Rockauto as stated is also a good option. Id Bypass it until the weather is the most favorable for you to work on it. (early Fall?)

If I could offer some advise. Take off the roof panel and remove the passenger seat. Your back will owe me a beer. And it helps while working upsidedown. D
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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

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Last edited by GOLDCYLON; 07-28-2008 at 12:54 PM.
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Old 07-28-2008   #9
Toyvet1
 
Join Date: Dec 2007
Location: Bloomingdale, Il
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Default Re: Gonna need a heater core...

When I bought my car someone bypassed the heater core. I never found out why nothing wrong with heater core. Down side of bypassing is climate control will not work as it blends hot a cold airflow. Adjusting the controls was not effective and could never get temp close to right.
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Old 07-28-2008   #10
Jeffvette
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Default Re: Gonna need a heater core...

It is the same as the L98 car. 52479882, it's still available from GM.
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