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Bills 2007 post about 81 exhaust manifold and gasket so..for a 1981..exhaust manifold gasket or not? There are conflicting posts. For sure the manifold part changed in 1981 to the tubular type, GM # 14022625-W and 14022626-W, having emission tubes and A.I.R vertical pipe. Please fact check...

exhaust manifolds 1981 gaskets or not...and to all who have an 81 bill81vette; \Hi..saw this ol thread..so first off..I have exhaust leaks..either small cracks in manifold or at mating surface to head so will take em off an see whats up..this on my 81 4 speed..by the way Bill also metallic dark...

dont know what i dont know about 81 exhaust manifold Thanks for info thus far, I am keeping notes, BUT..:w I am finding that I don't know what I don't know..so I don't know if the ports on the 81 engine line up with all or most prior year or after market exhaust manifolds or headers made for...

anyone with an 81 replaced ex manifold/headers? Thanks Tom..I will do some checking and measuring. Anyone out there that has replaced exhaust manifolds/headers on an 81, std trans...?? If so..any info appreciated as to what you used and how it fit up. Nick

My 81, 350, man trans has all the smog removed..no A.I.R., no egr, no computer, no catalytic, no oxy sensor (running Edelbrock carb, intake and cam)..the left ex manifold has a crack..so time to replace em. What will fit? With all the smog stuff gone..will an earlier vette ex manifolds fit...

what headers or ex manifold for my 81 with ALL smog removed? My 81, 350, man trans has all the smog removed..no A.I.R., no egr, no computer, no catalytic, no oxy sensor (running Edelbrock carb, intake and cam)..the left ex manifold has a crack..so time to replace em. What will fit? With all...

as in post in title 81, std trans 4 spd..all smog stuff removed incl catalytic, now with Edelbrock Performer series, intake, carb, cam..computer to be disconnected..so what distributor to use..as the stock one was 1. controlled by computer, 2. no idea of advance when no computer, and 3. Lars...

what distributor for 81 but with all smog and computer removed and Edelbrock carb and intake as in postin title 81, std trans 4 spd..all smog stuff removed incl catalytic, now with Edelbrock Performer series, intake, carb, cam..computer to be disconnected..so what distributor to use..as the...

the rear wheel bearing R and R is a PITA and involves a lot including a several special tools, several jacks, and setting the clearance exactly. It is a good time to look at everything else in the vicinity as you will have it apart..spring, all bushings consider poly), strut rods etc. It "may"...

welcome to the group see an answer on c3 tech forum welcome to the group see an answer on c3 tech forum

Don that is such good news..hooooraaaay ! Betting it was the distributor.. so..what distributor brand and model is it..? was it a plug in and go..ready to run? did you get the curve specs? what timing specs did you set up. and..is it all now off the computer..that is no computer ECC to either...

Visually check front end .and steering as below.all..for any looseness that should not be there including A arms where shinms are and wheel bearing (wheel play..there should be none)..ok same for rear end..fix anything as needed..check ride height..fix as needed..why..because all these things...

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agree: keep variables to minimum until all is good and you can assess what you have as a starting point, check/do simple things first..this seems a process of elimination. Nick

The stands caution is on mfg info..guess they think it might tip off..and maybe it has occurred..shops sell a hard rubber insert you can use in a floor jack cup but I like a bit of wood to distribute the load over a greater area and no dent or ding in the frame: ..and also use it or a thick...

Edelbrock mods to 81 350 If installing a cam, then a Good time to renew the radiator..and condenser if not in good shape..and of course to check the upper valve train bits....and the timing gears were replaced...the $bill keeps getting higher !! FYI: Here is the Edelbrock intake/carb cam...

ohhh there are so many "I have been doing this or that for years..""...stories: not wearing seatbelts, no helmet on motorcycles or bikes, .smoking, drinking heavily, cheap oil, hundreds of thousands of miles no oil change, eating fatty foods and living to 100, running fast on old tires....to...

runs poory when hot Hope you find a cure. let us know. yes the 8.5 comp ratio allows lousy gas..but lousy gas also has (some brands) a lousy additive formula..designed for low performance cars: Modern cars that are computer controlled "tune down" to eliminate detonation, and manage air temps...

jacking c3 jacking on the frame flat ahead of the rear tire..behind the front tire..is correct..the manual tells you exact inches..but it is easy to see the wide flat frame section to use..Use a block of wood between jack and frame so as to not dent frame. Of course then use stands or blocks...

runs pooly when hot but coolant is not hot interesting...but don't sell yet. I have an 81, most of the same mods..all smog is gone, Edelbrock carb, intake and Performer cam, 160 deg thermostat with the Hypertech 160 degree module..do you have that? The cooler therm requires the Hypertech mod...