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older style intake |
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CHAR
AMC Nut Joined: Feb/22/2019 Location: NW Florida Status: Offline Points: 354 |
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Posted: Jun/12/2019 at 1:09pm |
Hey all.
I have an older style Edelbrock 2131 low rise intake manifold on my '72 SST, and was wondering if it has a exhaust crossover under the carb like some older GM products. The specs from Edelbrock are unclear. Trying to decide if I need one of those thermal break carb gaskets or not. It does look like the valley pan shield is in place and there is a 1" alum. spacer on top already. Thanks Char
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THE MENACE
AMC Addicted Joined: Nov/04/2008 Location: So. California Status: Offline Points: 4438 |
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The #2131 is a Performer series Intake and it does have the heat crossover.
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Former Owner of:
The Craig Breedlove "AERO AMX" Still Owner: SS/AMX #9 replica (THE BIG MENACE) 70 AMX 416, EFI, Nash 5 speed 70 Javelin 401, 727 (Wife's car) 72 Gremlin Autocross Project. |
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billd
Moderator Group Forum Administrator Joined: Jun/27/2007 Location: Iowa Status: Offline Points: 30894 |
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Dennis - the walking, typing, dictionary of all things intake manifolds. Pretty cool.....
Anyway, speaking of cool - I personally prefer to run those insulators under carburetors after my experiences with gasoline lately - and hearing the stuff boil after shutting down. Even years ago it was something I liked to see as when a car is towed into the shop off I80 with fuel troubles and you are told "this family is in a hurry, get on it right away" and you burn your fingers getting a carburetor off - well..... ;-) |
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CHAR
AMC Nut Joined: Feb/22/2019 Location: NW Florida Status: Offline Points: 354 |
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Great, thanks guys. Big gooey carb gasket it is. maybe and airgap in the future.
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Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
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Phenolic spacer, solid rubber, Jegs and Summit carry them from 1/2" to 2" for under $20. Great insurance if you have the clearance, even if you don't need it for a heat problem it still keeps the carb cooler so it should increase performance.
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'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
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CHAR
AMC Nut Joined: Feb/22/2019 Location: NW Florida Status: Offline Points: 354 |
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Yeah, I got the thinnest phenolic one for now. The 2 1/2" open air filter dish hold down already leaves a good dimple in the hood pad. May have to increase the filter diameter and cut the height. thx
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72 Javelin SST P code 360/auto/AC/rear defrost /Go Pack/Polar White w blue cord interior.
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sweatlock
AMC Addicted Joined: Apr/28/2014 Location: Largo, FL Status: Online Points: 3322 |
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Depending on the type of carb, there are 1/4” thick phenolic spacers available as well if hood clearance, such as on an AMX, is a concern.
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