Where can I find a phenolic carb spacer for the /6? 2 15/16" bolt spacing and 1 1/2" bore? Find a ton of other sizes but not for this one.
Jim
Jim
Carburator Spacer
- Thread starter Jim Kueneman
- Start date
-
can you find a solid chunk in the thickness you want and make your own? Back in the day, carb spacers made of oak or some other hardwood were common. As of a few years ago I still saw them available for sale new, for common 4 barrel carbs. and remember reading stories of hot rodders making their own!
Always an option but these days I would rather buy and install
Jackpot...
Fits YF 2 Bolt Phenolic Riser Carter Holley Autolite Carb Intake Spacer 1/2" | eBay
just a little info
Wood Carburetor Spacers
Wood has a thermal conductivity rating of 1.02, making it the best insulator in the group. Wood carb spacers are also cheaper and easier to shape.
But there are disadvantages.
Its pores are what make it such a good insulator. But they also make it extremely absorbent. This means that gasoline and any other chemical can easily soak in and warp the spacer. The results are vacuum leaks and a faster depreciation.
And because of this, you’ll have to inspect and replace your wood carb spacer often.
Phenolic Resin
This material is the second best insulator of the four, with a thermal conductivity rating of 2.01. It’s also more durable compared to wood. It’s not as porous, making it more resistant to chemicals.
So if your spacer’s insulation properties are important to you, but at the same time you don’t want to deal with any additional maintenance – a phenolic resin carb spacer might be perfect for you.
Polymer
Polymer, also known as plastic, has a thermal conductivity rating of 3.90.
But while the rating is bad news for insulation, it’s good news for the price – polymer spacers are cheaper than phenolic resin spacers.
And truthfully, some polymers insulate almost as well as phenolic resin.
Aluminum
Aluminum is not good at insulating.
At all.
Its thermal conductivity rating is 1,665.1.
So what are its advantages?
Aluminum is super durable. Aluminum will tune your intake charge. Aluminum carb spacers are the only ones allowed by the majority of racing sanctioning bodies.
Wood Carburetor Spacers
Wood has a thermal conductivity rating of 1.02, making it the best insulator in the group. Wood carb spacers are also cheaper and easier to shape.
But there are disadvantages.
Its pores are what make it such a good insulator. But they also make it extremely absorbent. This means that gasoline and any other chemical can easily soak in and warp the spacer. The results are vacuum leaks and a faster depreciation.
And because of this, you’ll have to inspect and replace your wood carb spacer often.
Phenolic Resin
This material is the second best insulator of the four, with a thermal conductivity rating of 2.01. It’s also more durable compared to wood. It’s not as porous, making it more resistant to chemicals.
So if your spacer’s insulation properties are important to you, but at the same time you don’t want to deal with any additional maintenance – a phenolic resin carb spacer might be perfect for you.
Polymer
Polymer, also known as plastic, has a thermal conductivity rating of 3.90.
But while the rating is bad news for insulation, it’s good news for the price – polymer spacers are cheaper than phenolic resin spacers.
And truthfully, some polymers insulate almost as well as phenolic resin.
Aluminum
Aluminum is not good at insulating.
At all.
Its thermal conductivity rating is 1,665.1.
So what are its advantages?
Aluminum is super durable. Aluminum will tune your intake charge. Aluminum carb spacers are the only ones allowed by the majority of racing sanctioning bodies.
j par
Well-hung Member
You speak of a lost art... Hot rodding.
CNC-Dude
Well-Known Member
One word of caution to you or anyone else contemplating making a spacer out of the phenolic resin, the dust created from machining or grinding it is highly toxic. So the use of a vacuum cleaner to remove the dust as you are making it along with a very good respirator would be a wise choice.
bcschief
Well-Known Member
Is there a reason the original carb base gasket won't work ? If the original style gasket is what your looking for Mahle G7173 and Felpro 60085 shold work.
-
