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

Heater Hose Blockoff

Thread Tools
 
Search this Thread
 
Old Feb 1, 2008 | 11:02 PM
  #1  
carriker's Avatar
carriker
Thread Starter
Pro
 
Joined: Mar 2005
Posts: 569
Likes: 0
From: College Station Texas
Default Heater Hose Blockoff

I'm going to temporarily block off my heater core until I have time to replace it. Does anyone know offhand the sizes of the adapter piece needed to attach the in and out hoses of the heater core together so that the core is bypassed? Thanks.
-Matt Carriker
Reply
Old Feb 2, 2008 | 12:15 PM
  #2  
BADDUCK's Avatar
BADDUCK
Le Mans Master
 
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Default

My 1989 heater hoses are 5/8" I D. That is pretty standard.
Reply
Old Feb 2, 2008 | 04:36 PM
  #3  
pkazsr's Avatar
pkazsr
Le Mans Master
 
Joined: Jul 2007
Posts: 5,356
Likes: 2
From: No HOA, New Hampshire
Cruise-In X Veteran
St. Jude Donor '09
Default

On my 88 the top is 3/4" and the bottom is 5/8"
Reply
Old Feb 2, 2008 | 05:07 PM
  #4  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default

Originally Posted by pkazsr
On my 88 the top is 3/4" and the bottom is 5/8"
THAT is pretty much standard.

RACE ON!!!
Reply
Old Feb 2, 2008 | 05:14 PM
  #5  
zr1fred's Avatar
zr1fred
Race Director
15 Year Member
Veteran: Marine Corps
All Eyes On Me
Top Answer: 1
 
Joined: May 2006
Posts: 10,691
Likes: 71
From: Phoenix Arizona
Default

Welcome back, old one of many stars.

Last edited by zr1fred; Feb 2, 2008 at 05:17 PM.
Reply
Old Feb 2, 2008 | 10:38 PM
  #6  
cfi's Avatar
cfi
Instructor
10 Year Member
 
Joined: Aug 2007
Posts: 107
Likes: 0
From: Lansdale PA
Default

I have an "89 coupe. Advanced auto parts has a heater bypass coupling that works great. Its in the section with all the heater hose clamps etc. I am doing the same as you
Reply
Old Feb 2, 2008 | 11:10 PM
  #7  
Demonic85's Avatar
Demonic85
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default

On mine, top one is 3/4" and bottom is 5/8".
Reply
Old Feb 3, 2008 | 08:19 AM
  #8  
BADDUCK's Avatar
BADDUCK
Le Mans Master
 
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Default

Originally Posted by CFI-EFI
THAT is pretty much standard.

RACE ON!!!
You just can't stand not being a smart azz can you?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Feb 3, 2008 | 09:27 AM
  #9  
carriker's Avatar
carriker
Thread Starter
Pro
 
Joined: Mar 2005
Posts: 569
Likes: 0
From: College Station Texas
Default

Sweet, off I go to the parts store. Thanks!
Reply
Old Feb 4, 2008 | 09:12 AM
  #10  
carriker's Avatar
carriker
Thread Starter
Pro
 
Joined: Mar 2005
Posts: 569
Likes: 0
From: College Station Texas
Default

Worked great! I bypassed the heater core yesterday. Hopefully the interior will stop smelling like antifreeze. It'll be in the 70's all week so I shouldn't need my heater anyway. The high today is 77.... gotta love those Texas winters.
Reply
Old Feb 4, 2008 | 09:36 AM
  #11  
cfi's Avatar
cfi
Instructor
10 Year Member
 
Joined: Aug 2007
Posts: 107
Likes: 0
From: Lansdale PA
Default

Glad everything worked for you.
Reply

Get notified of new replies

To Heater Hose Blockoff





All times are GMT -4. The time now is 08:24 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE