C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Radiator Installation 1970 454

Thread Tools
 
Search this Thread
 
Old Feb 19, 2020 | 12:36 PM
  #1  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default Radiator Installation 1970 454

The bonnet is off for access, and after a full engine compartment refurbishment, its time to put the rad back into the car.

This has proved to be a tight fit with the radiator frame in place, and I am having difficulty in getting into into place without fouling the shroud etc.
- is it a good idea after putting the shroud in place to fit radiator to the frame and install as one piece or indeed mounting the shroud as well before dropping all three into car
- Is it easier to fit the radiator by dropping into place from the top, or remove sway bar and put into place from underneath the car?

Kind regards
Paul
Reply
Old Feb 19, 2020 | 02:48 PM
  #2  
2mnyvets's Avatar
2mnyvets
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2015
Posts: 396
Likes: 101
From: Lehigh Valley Pennsylvania
Default

I just did this with my 73 BB. I took the fan and fan clutch off. I put the shroud over the water pump and tied it back. What I don't remember is if I had the radiator frame on or off. IIRC I believe I first tried with the frame, condenser and radiator as a unit, but wound up removing the radiator and installing that after the frame and condenser. With a helper, we lowered the radiator down and mounted it. With the hood/ bonnet of it was pretty easy. I installed the fan shroud. Then I put the fan/ fan clutch on.

It was difficult to angle and hold with one person; two people made the job easy. Also I remember the radiator frame binding in the fenders which is why I believe I removed it and mounted it separately

Last edited by 2mnyvets; Feb 19, 2020 at 02:49 PM.
Reply
Old Feb 19, 2020 | 04:48 PM
  #3  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,742
Likes: 2,583
Default

remove the bolts in the inner fender on both sides holding the radiator support.
loosen but do not remove the bolts on the bottom of the radiator support
if there is a support brace in front of the radiator support remove it.
tilt the radiator support forward and insert the radiator and shroud as one piece.
Reply
Old Feb 19, 2020 | 09:32 PM
  #4  
Duntov's Avatar
Duntov
Drifting
20 Year Member
 
Joined: Aug 1999
Posts: 1,451
Likes: 84
From: Round Rock TX
Default

As MelWff said. There was no other way to get the radiator in along with the shroud on my 70 big block.
Reply
Old Feb 20, 2020 | 01:37 AM
  #5  
caskiguy's Avatar
caskiguy
Le Mans Master
Supporting Lifetime Gold
Community Builder
Liked
Loved
Community Favorite
 
Joined: Nov 2016
Posts: 9,265
Likes: 951
From: Lake Tahoe, CA
Default

Originally Posted by PBCloud
The bonnet is off for access, and after a full engine compartment refurbishment, its time to put the rad back into the car.

This has proved to be a tight fit with the radiator frame in place, and I am having difficulty in getting into into place without fouling the shroud etc.
- is it a good idea after putting the shroud in place to fit radiator to the frame and install as one piece or indeed mounting the shroud as well before dropping all three into car
- Is it easier to fit the radiator by dropping into place from the top, or remove sway bar and put into place from underneath the car?

Kind regards
Paul
https://www.corvetteforum.com/forums...placement.html
Reply
Old Feb 20, 2020 | 02:55 AM
  #6  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

Many thanks guys.

Paul
Reply
Old Feb 23, 2020 | 07:58 AM
  #7  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

All the parts involved had been restored and painted, and a new replacement frame purchased (which fitted perfectly) as the old one was beyond repair, this may have made things easier. Radiator is now in the car; I had not done this task before and I am not a mechanic so it took quite a bit of time (I reckon around 4 hours), however it was after quite a bit of trail and error and learning along the way with the tips and hints provided by the forum proving very useful; so not a guide but hopefully containing some useful tips to bear in mind;

I first protected the paint either side to prevent it from any damage and note I had the hood off as this makes access so easy I cant imagine doing this by myself with the hood in place.
Removed fan
Transmission cooler hoses and all the other hoses tied out of the way
New seals added to frame and shroud (self-adhesive, so this is easy), I suggest you take photo of the where the old seals before removing them so you can position the new ones in the correct position, as its not obvious where they go, and NOTE where the upper frame seal covers or is close to the holes for the larger upper bracket, keep the backing tape on on this last few inches of the seal as you will need to stick it over the larger upper bracket later in the installation, when this bracket is bolted on
Added the two lower radiator bracket rubber supports to the frame (a little silicon grease on the rubber lugs on the support makes it easier to push them into the holes)
Put radiator frame into place, added all six of the fender bolts to ensure all the holes line up (accessed though the wheel arches; no need to remove wheels), took out the top two fender bolts each side leaving only the bottom ones in place but very loose, if you replace these with new bolts (corroded as they are very exposed to rain etc.). I found stock replacement bolts are a little shorter, so keep the old ones as you will probably need them for the bottom two holes to get them to reach the threads on the frame (I speak from experience here)
I did not need to remove the lower front frame brace (loose was ok), but make sure its tied out of the way
Frame pulled forward pivoting on the lower fender bolts (this gives loads of space) and tied or braced to hold it there
Cardboard placed on front of radiator to protect fins (cut to size and tied in place with some thin string - (this was a good tip)
Radiator gently lowered into place, lots of room and was easy to do (CARE - may wish to consider using a hoist or friend to help you here to protect your back, as you will be slightly leaning forward to do this)
Shroud then wriggled into place (for me this did not need to be put in at the same time as the radiator; its was tight but there was sufficient space)
Add radiator upper brackets: these were a tight fit with the rubber supports in place and I initially took them off, tightened everything up and added them later.
Shroud bolts added and lower shroud piece added
Frame aligned back into place and all bolts added
All bolts then tightened up.
All bolts fixings etc. double checked that they are all tightened (as there were quite a few)

Kind regards
Paul

Last edited by PBCloud; Feb 23, 2020 at 09:05 AM.
Reply

Get notified of new replies

To Radiator Installation 1970 454





All times are GMT -4. The time now is 04:21 PM.

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