Phenolic spacer on a factory manifold
08-13-2014, 12:16 PM
#1
Le Mans Master
Thread Starter
Member Since: Feb 2001
Location: Grapevine Tx
Posts: 7,981
Received 776 Likes
on
469 Posts
2018 C3 of Year Finalist
2016 C3 of the Year Finalist
Phenolic spacer on a factory manifold
I'd like to put a .5 inch phenolic spacer on my LT-1 manifold to help insulate the carb. The Summit catalog states that you can't put one of these on a factory exhaust crossover manifold (I guess it would melt the phenolic).
Would it work if I put those metal block off plates in the manifold gaskets? I also have my heat riser wired open.
I don't think an aluminum spacer would do much insulating.
Would it work if I put those metal block off plates in the manifold gaskets? I also have my heat riser wired open.
I don't think an aluminum spacer would do much insulating.
08-13-2014, 12:33 PM
#2
Race Director
That is a Holley carburetor, correct? Take a look at Edelbrock item 8723. It can take the heat. My company manufactures this item in Seattle, so it is made in the USA.
08-13-2014, 02:31 PM
#3
Safety Car
beware, you may not have the clearance under the hood for that extra .5 inch height.
I used a .25 inch and it solved my carb percolation problems and I did remove my heat riser valve. My carb is cool to the touch even after a long trip whereas before I could hear my gas boiling away after shutdown resulting on harder starting due to having to fill the float bowls first.
I used a .25 inch and it solved my carb percolation problems and I did remove my heat riser valve. My carb is cool to the touch even after a long trip whereas before I could hear my gas boiling away after shutdown resulting on harder starting due to having to fill the float bowls first.