Heat insulation carb base gasket PN? - Team Camaro Tech
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post #1 of 9 (permalink) Old Jan 12th, 09, 02:57 PM Thread Starter
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Justin
 
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Heat insulation carb base gasket PN?

Does anyone know the FelPro part number for the thick heat insulating carb base gasket? Preferribly the open center style. I have search for over an hour on here and all over the net and been to 4 different parts stores.

My local NAPA ordered me a 4 hole style but the holes were slightly smaller than the throttle bores on my carb. It should be noted that these gaskets cannot be easily modified.

Thanks,
JP

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post #2 of 9 (permalink) Old Jan 12th, 09, 04:21 PM
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Don
 
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Re: Heat insulation carb base gasket PN?

For what carb? Qjet, Holley, Carter? Some of these come in the kit also.

Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #3 of 9 (permalink) Old Jan 13th, 09, 07:27 AM
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Charlie
 
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Re: Heat insulation carb base gasket PN?

This may be what you're looking for. It's 1/4" thick with open plenum, but I haven't had ANY luck with using this type. I still get fuel percolation and hard hot restarts. I have since switched to a 1" phenolic 4 hole spacer made by Canton Racing. They make shorter heights and open plenum spacers, but I went with the 1" 4 hole for more low end grunt. The open plenum units add top end.
http://store.summitracing.com/partde...5&autoview=sku

Here are some of the spacers offered by Canton:
http://www.cantonracingproducts.com/...&category=8560

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #4 of 9 (permalink) Old Jan 13th, 09, 08:25 AM Thread Starter
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Justin
 
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Re: Heat insulation carb base gasket PN?

Sorry guys I should have stated it is for a Holley.

I have a 1" 4-hole phenolic spacer that I may install but I was trying to keep the carb as low as possible on the manifold. It's a mildy built 454 with a Wieand X-celeraror single plane open plenum intake. It's always been my understanding that the spacers move the power curves into the higher RPM's and I want this on the lowest end possible.

'88 V-30 Crew Cab
'87 V-10
'69 Camaro SS
'52 M38
'46 Rat Rod
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post #5 of 9 (permalink) Old Jan 13th, 09, 09:44 AM
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Don
 
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Re: Heat insulation carb base gasket PN?

Quote:
Originally Posted by puppy View Post
Sorry guys I should have stated it is for a Holley.

I have a 1" 4-hole phenolic spacer that I may install but I was trying to keep the carb as low as possible on the manifold. It's a mildy built 454 with a Wieand X-celeraror single plane open plenum intake. It's always been my understanding that the spacers move the power curves into the higher RPM's and I want this on the lowest end possible.
Sounds like you could use the intake to carb , insulator plate, has 1/4 gasket fastened to it . Used on many GM Holley cars . I have one but don't recall the part number. I will look it up later, oh got something, GM still list a carb heat shield, 3969835, it used to come with a 1/4" gasket, might look into this.
Here is one from Holley http://store.summitracing.com/partde...5&autoview=sku

Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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Last edited by zdld17; Jan 13th, 09 at 09:58 AM.
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post #6 of 9 (permalink) Old Jan 13th, 09, 09:48 AM
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Mike
 
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Re: Heat insulation carb base gasket PN?

Felpro lists a 1/4" insulator gasket only for spreadbore carbs. Your best bet is a 4 hole phenolic spacer which are available in 1/2". A 4 hole helps with low end torque and does not really move the rpm range up.


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post #7 of 9 (permalink) Old Jan 14th, 09, 08:12 AM
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Charlie
 
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Re: Heat insulation carb base gasket PN?

I would highly second the phenolic spacer. I have been running one for a good bit now and NEVER had a hot restart issue. I tried using the 1/4" heat shield type gasket offered for both my Q-Jet and the Edelbrock and they have been unsuccessful. Is it the 4150/4160 falnge style? Square bore? Edelbrock offers an open plenum heat spacer. Is this it?
http://store.summitracing.com/largei...edl-9265_w.jpg

Even if this is it, I tried this and still had hot restart issues. The only thing I found that resolved my issues was a phenolic spacer. Canton Racing makes 1/2" and 1" open plenum spacers and also 1/4", 1/2" and 1" 4 hole spacers. They also offer 1" blended 4 hole spacer. The open plenum is for top end where the 4 hole increases low end. Believe me, they work. Well, the 4 hole spacers work. I don't know about the open plenum. Mine is a street car so I am not as concerned about top end. Even the switch from a 1/2" to a 1" made a difference I could feel.
http://www.cantonracingproducts.com/...&category=8540

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)

Last edited by 67CamaroRS/SS; Jan 14th, 09 at 08:18 AM. Reason: Added Info
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post #8 of 9 (permalink) Old Jan 14th, 09, 08:46 AM Thread Starter
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Justin
 
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Re: Heat insulation carb base gasket PN?

Sounds like I should throw on the 1" phenolic spacer I have on the shelf. I'm not having hot start issues, I just like to keep things cool and get every little bit of extra I can out of the engine.

Thanks,
JP

'88 V-30 Crew Cab
'87 V-10
'69 Camaro SS
'52 M38
'46 Rat Rod
Word of the wise should be sufficient!
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post #9 of 9 (permalink) Old Jan 14th, 09, 10:34 AM
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Charlie
 
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Re: Heat insulation carb base gasket PN?

It depends on what you want the engine for??? If it's a street car, then it's low end torque you are after. That would require a 4 hole. If it's a track car, then it's top end horsepower you are after. That would require an open spacer. Either way, you should do some experimenting here. Some combos respond to 1" spacers where some get the most from a 1/2" spacer. You may require a 2" spacer to get the most from your setup. The only true way is to either dyno it with each spacer or do the seat of the pants test.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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