older style intake
Printed From: TheAMCForum.com
Category: The Garage
Forum Name: AMC V8 Engine Repair and Modifications
Forum Description: AMC-made V8 engine mechanical, ignition and fuel from basic repair to high-perf modifications
URL: https://theamcforum.com/forum/forum_posts.asp?TID=100492
Printed Date: Apr/18/2024 at 5:47am
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Topic: older style intake
Posted By: CHAR
Subject: older style intake
Date Posted: Jun/12/2019 at 1:09pm
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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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Replies:
Posted By: THE MENACE
Date Posted: Jun/12/2019 at 2:04pm
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The #2131 is a Performer series Intake and it does have the heat crossover. ------------- 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. |
Posted By: billd
Date Posted: Jun/12/2019 at 3:15pm
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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..... ;-) -------------  http://theamcpages.com" rel="nofollow - http://theamcpages.com http://antique-engines.com" rel="nofollow - http://antique-engines.com |
Posted By: CHAR
Date Posted: Jun/12/2019 at 4:08pm
| Great, thanks guys. Big gooey carb gasket it is. maybe and airgap in the future. |
Posted By: Midnight Rambler
Date Posted: Jun/12/2019 at 9:01pm
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. -------------  '66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
CHAR wrote:Posted By: CHAR
Date Posted: Jun/13/2019 at 11:32am
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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 ------------- 72 Javelin SST P code 360/auto/AC/rear defrost /Go Pack/Polar White w blue cord interior. |
Posted By: sweatlock
Date Posted: Jun/13/2019 at 3:03pm
| 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. |