Sorry, couldn't resist!
72 vs 73 radiator
Thread Starter
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
72 vs 73 radiator
Will a 72 big radiator fit in a 73 that had the big radiator. I see there is a different listing for the two and not worried if it is an exact fit but what would be the difference between the two. Looking to sell my 72 Dewitts rad to 73jst4fun and then put in the Dewitts LS radiator for my car.
Former Vendor
Joined: Aug 2006
Posts: 76,656
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From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Gordon-
I think the difference is the size. The 73-76 radiator had a 27.5" core, I think the 68-72 is 26" I'll have check this.
I think the difference is the size. The 73-76 radiator had a 27.5" core, I think the 68-72 is 26" I'll have check this.
Last edited by Willcox Corvette; Aug 5, 2011 at 10:23 AM.
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Will a 72 big radiator fit in a 73 that had the big radiator. I see there is a different listing for the two and not worried if it is an exact fit but what would be the difference between the two. Looking to sell my 72 Dewitts rad to 73jst4fun and then put in the Dewitts LS radiator for my car.
A. 3155316 was the aluminum one (uses surge tanks) Small block
B. 26" Copper with filler neck (no surge tank) Small block with options
C. 27.5" Copper no filler neck (uses surge tank) Big block only
If you have item C, it is identical to all 73 radiators except the 73 will have a filler neck. I often have people wanting to use the 73 radiator in the 69-72 to eliminate the surge tank but if you want to use the 72 in a 73 you'll have to add the surge tank.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The 72 could have had (3) three different radiators
A. 3155316 was the aluminum one (uses surge tanks) Small block
B. 26" Copper with filler neck (no surge tank) Small block with options
C. 27.5" Copper no filler neck (uses surge tank) Big block only
If you have item C, it is identical to all 73 radiators except the 73 will have a filler neck. I often have people wanting to use the 73 radiator in the 69-72 to eliminate the surge tank but if you want to use the 72 in a 73 you'll have to add the surge tank.
A. 3155316 was the aluminum one (uses surge tanks) Small block
B. 26" Copper with filler neck (no surge tank) Small block with options
C. 27.5" Copper no filler neck (uses surge tank) Big block only
If you have item C, it is identical to all 73 radiators except the 73 will have a filler neck. I often have people wanting to use the 73 radiator in the 69-72 to eliminate the surge tank but if you want to use the 72 in a 73 you'll have to add the surge tank.
You did save me from looking it up!
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