Rad support to hood seal for a L88 style hood
03-26-2016, 05:13 PM
#1
Rad support to hood seal for a L88 style hood
I have al the seals in place, but they must be for the original hood...
The L88 style hood on the car leaves a significant gap above the rad.
From a quick search the vendors sell
"Big block" top rad seal, and
"LT1" top rad seal.
What should I use, or where can i get it? homemade?
The L88 style hood on the car leaves a significant gap above the rad.
From a quick search the vendors sell
"Big block" top rad seal, and
"LT1" top rad seal.
What should I use, or where can i get it? homemade?
03-26-2016, 05:46 PM
#2
Team Owner
Member Since: Sep 2006
Location: Westminster Maryland
Posts: 30,173
Likes: 0
Received 2,878 Likes
on
2,515 Posts
Hi R,
I believe 68 and 69 L88 cars had what is described as a "thin sheet rubber air dam on radiator support."
There's a good picture of it in M.F. Dobbins "Vet-Vues Fact Book of the 68-72 Stingray". Page 29, top picture.
It's attached to the core support in such a way that the is sorta like a flap that stands up.
Regards,
Alan
I believe 68 and 69 L88 cars had what is described as a "thin sheet rubber air dam on radiator support."
There's a good picture of it in M.F. Dobbins "Vet-Vues Fact Book of the 68-72 Stingray". Page 29, top picture.
It's attached to the core support in such a way that the is sorta like a flap that stands up.
Regards,
Alan
Last edited by Alan 71; 03-26-2016 at 05:48 PM.
03-26-2016, 06:05 PM
#3
Safety Car
Member Since: May 2004
Location: los altos hills california
Posts: 3,609
Received 1,126 Likes
on
730 Posts
I've always figured that, unless my car's overheating, a little cooler air over the top might be a good thing. Thanks for reminding me about something I've been meaning to measure!
03-26-2016, 06:15 PM
#4
Team Owner
Member Since: Sep 2006
Location: Westminster Maryland
Posts: 30,173
Likes: 0
Received 2,878 Likes
on
2,515 Posts
Hi i,
I'm sorry to disagree but I believe the purpose of ALL the radiator seals, the fan, AND the shroud, is to pull as much fresh air as possible THROUGH the radiator, and not allow it to go AROUND the radiator…..so the engine doesn't overheat.
Regards,
Alan
I'm sorry to disagree but I believe the purpose of ALL the radiator seals, the fan, AND the shroud, is to pull as much fresh air as possible THROUGH the radiator, and not allow it to go AROUND the radiator…..so the engine doesn't overheat.
Regards,
Alan
03-26-2016, 06:38 PM
#5
I have al the seals in place, but they must be for the original hood...
The L88 style hood on the car leaves a significant gap above the rad.
From a quick search the vendors sell
"Big block" top rad seal, and
"LT1" top rad seal.
What should I use, or where can i get it? homemade?
The L88 style hood on the car leaves a significant gap above the rad.
From a quick search the vendors sell
"Big block" top rad seal, and
"LT1" top rad seal.
What should I use, or where can i get it? homemade?
What type of upper radiator seal you use will depend on your radiator support. Chevrolet used two types on L88 cars. 68's used a thin rubber seal that was stapled to the radiator support. 69's used a dense foam that was glued on top of the radiator support.
I've attached a picture of the 69 foam type.
Doc Rebuild will have all the various types of radiator support seals.
03-26-2016, 07:06 PM
#6
Safety Car
Member Since: May 2004
Location: los altos hills california
Posts: 3,609
Received 1,126 Likes
on
730 Posts
I don't disagree Alan, especially with a big block. I've got a DeWitts setup with no top radiator seal, and an electric fan and my motor never overheats. In fact the fans almost never come on except when I'm sitting for a while. That's different enough from what was asked here that I'll make some temp measurements and post the results on my own.
03-26-2016, 07:09 PM
#7
Rcdizy
What type of upper radiator seal you use will depend on your radiator support. Chevrolet used two types on L88 cars. 68's used a thin rubber seal that was stapled to the radiator support. 69's used a dense foam that was glued on top of the radiator support.
I've attached a picture of the 69 foam type.
Doc Rebuild will have all the various types of radiator support seals.
What type of upper radiator seal you use will depend on your radiator support. Chevrolet used two types on L88 cars. 68's used a thin rubber seal that was stapled to the radiator support. 69's used a dense foam that was glued on top of the radiator support.
I've attached a picture of the 69 foam type.
Doc Rebuild will have all the various types of radiator support seals.
