Phenolic vs Aluminum Carb Spacer

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Phenolic vs Aluminum Carb Spacer Empty Phenolic vs Aluminum Carb Spacer

Post  wickettoby1 on January 24th 2019, 10:29 am

So I ordered an HVH 1" phenolic carb spacer for a summer driven (maybe 2K a year) street car. I ordered the phenolic instead of aluminum primarily for its heat insulating properties. Well I received the exact spacer that I wanted only its aluminum. The box was tagged correctly but the spacer within was the wrong material. So my question, is the universe telling me that I should be using an aluminum spacer? I figured from a company like HVH the phenolic would be of high enough quality that I wouldn't have to worry about warpage or material degradation on a street car. Has anyone ran a phenolic spacer on the street long term?

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  69F100 on January 24th 2019, 11:25 am

wickettoby1 wrote:So I ordered an HVH 1" phenolic carb spacer for a summer driven (maybe 2K a year) street car. I ordered the phenolic instead of aluminum primarily for its heat insulating properties. Well I received the exact spacer that I wanted only its aluminum. The box was tagged correctly but the spacer within was the wrong material. So my question, is the universe telling me that I should be using an aluminum spacer? I figured from a company like HVH the phenolic would be of high enough quality that I wouldn't have to worry about warpage or material degradation on a street car. Has anyone ran a phenolic spacer on the street long term 

I have on my 69F100 for a couple of years with no problem but mine is a 2" 4 hole
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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  pmrphil on January 24th 2019, 1:39 pm

I believe HVH does not make a phenolic spacer, they make a plastic (nylon?) spacer that is listed for (and marked as) drag race ONLY. Jomar (powercone) is the manufacturer of the phenolic ones.

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  rmcomprandy on January 24th 2019, 7:24 pm

A lot of companies out there advertise a "phenolic" spacer when it really is not that true "phenolic" MATERIAL at all.

Be aware ...

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  stanger68 on January 25th 2019, 12:02 am

Ford and other manufacturers used phenolic spacers on some models back in the 70's and 80's. Shouldn't have any problems.

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Post  rmcomprandy on January 25th 2019, 12:16 am

stanger68 wrote:Ford and other manufacturers used phenolic spacers on some models back in the 70's and 80's. Shouldn't have any problems.

Ford Motor Company used "BAKELITE" material which is commonly referred incorrectly as phenolic because it has phenol in its chemical make-up and is an effective heat barrier but, never true "Phenolic" which was mostly thin and used for circuit boards in electronic equipment.


Last edited by rmcomprandy on January 25th 2019, 12:22 am; edited 1 time in total

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  stanger68 on January 25th 2019, 12:21 am

rmcomprandy wrote:
stanger68 wrote:Ford and other manufacturers used phenolic spacers on some models back in the 70's and 80's. Shouldn't have any problems.

Ford Motor Company used "BAKELITE" material but, never true "Phenolic" which was mostly thin and used for circuit boards in electronic equipment.

Is phenolic not basically bakelite with fiber reinforcement?

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  rmcomprandy on January 25th 2019, 12:28 am

stanger68 wrote:
rmcomprandy wrote:
stanger68 wrote:Ford and other manufacturers used phenolic spacers on some models back in the 70's and 80's. Shouldn't have any problems.

Ford Motor Company used "BAKELITE" material but, never true "Phenolic" which was mostly thin and used for circuit boards in electronic equipment.

Is phenolic not basically bakelite with fiber reinforcement?

Kind-of ... Bakelite is a resin / filler type free standing material and can be casted where Phenolic board is re-inforced resin, pressed material.

They both work equally well as simply a heat barrier but, phenolic board is laminated and stronger; especially when thin.

I guess if it has some Phenol in it, it can be called "Phenolic" but, there is a difference.
Some spacers are simply an epoxy resin, plastic or nylon type material and are mislabeled as phenolic.

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  DaveMcLain on January 25th 2019, 11:01 am

pmrphil wrote:I believe HVH does not make a phenolic spacer, they make a plastic (nylon?) spacer that is listed for (and marked as) drag race ONLY.  Jomar (powercone) is the manufacturer of the phenolic ones.

The reason they say "drag race only" now is because the material isn't really good when the under hood temps get very high. I have a friend who has a customer who had one of those on a land speed record car(before they were labeled as drag race only) and at the end of the run the throttle would not close because one of those HVH spacers had melted under the carburetor. No harm done but he had plenty of time to get it shut down.

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  wickettoby1 on January 25th 2019, 1:10 pm

Well damn! Thanks for the chemistry lesson guys.

Looking back at the HVH website is does say plastic and not phenolic in the decreption. I guess my two options are to keep the HVH aluminum spacer or send it back and get a phenolic powercone. This is going on a dominator flange AFR intake so I like the idea of using a spacer specifically designed for a cloverleaf intake pad. FYI the spacer I received from HVH is the SS4500-1CAL.

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Post  rmcomprandy on January 25th 2019, 2:36 pm

wickettoby1 wrote:Well damn! Thanks for the chemistry lesson guys.

Looking back at the HVH website is does say plastic and not phenolic in the decreption. I guess my two options are to keep the HVH aluminum spacer or send it back and get a phenolic powercone. This is going on a dominator flange AFR intake so I like the idea of using a spacer specifically designed for a cloverleaf intake pad. FYI the spacer I received from HVH is the SS4500-1CAL.

The "Powercone" is designed for an open plenum but, Jomar does have several Cloverleaf type spacers or straight 4 hole spacers.

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  wickettoby1 on January 25th 2019, 2:43 pm

I was looking on Jomar's website and you are correct, they offer quite a variety of spacers. I'll probably send this aluminum HVH back and a phenolic Jomar.

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  stanger68 on January 25th 2019, 3:13 pm

rmcomprandy wrote:
stanger68 wrote:
rmcomprandy wrote:
stanger68 wrote:Ford and other manufacturers used phenolic spacers on some models back in the 70's and 80's. Shouldn't have any problems.

Ford Motor Company used "BAKELITE" material but, never true "Phenolic" which was mostly thin and used for circuit boards in electronic equipment.

Is phenolic not basically bakelite with fiber reinforcement?

Kind-of ... Bakelite is a resin / filler type free standing material and can be casted where Phenolic board is re-inforced resin, pressed material.

They both work equally well as simply a heat barrier but, phenolic board is laminated and stronger; especially when thin.

I guess if it has some Phenol in it, it can be called "Phenolic" but, there is a difference.
Some spacers are simply an epoxy resin, plastic or nylon type material and are mislabeled as phenolic.

Ok so we are on the same page. Yes I have seen some old ford with phenolic spacers. They did also use black high temp plastic. Can’t ssy I ever saw a Ford with a Bakelite spacer. The original Bakelite material that is used in electrical devices is very hard and brittle. Never seen a true Bakelite carb spacer. Not saying they don’t exist. Just never saw one

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  Lem Evans on January 25th 2019, 9:35 pm

What Randy said....

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Phenolic vs Aluminum Carb Spacer Empty Re: Phenolic vs Aluminum Carb Spacer

Post  rmcomprandy on January 26th 2019, 6:12 pm

stanger68 wrote:
rmcomprandy wrote:

I guess if it has some Phenol in it, it can be called "Phenolic" but, there is a difference.
Some spacers are simply an epoxy resin, plastic or nylon type material and are mislabeled as phenolic.

Ok so we are on the same page. Yes I have seen some old ford with phenolic spacers. They did also use black high temp plastic. Can’t ssy I ever saw a Ford with a Bakelite spacer. The original Bakelite material that is used in electrical devices is very hard and brittle. Never seen a true Bakelite carb spacer. Not saying they don’t exist. Just never saw one  

Just yesterday, I moved a whole stack of old Ford Motor Company black "Bakelite" carb spacers for Autolite 2 barrel carbs

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