327 Engine Help
Thread Starter
Instructor
Joined: Mar 2023
Posts: 123
Likes: 5
From: Katy, TX
I have an extra Holley 3310 carb but wasn't sure if that was too much for this 327 engine. Carb is 750 CFM.
If I can use that carb, then I would need to know what intake would work best and still fit under the 58 Corvette hood.
Is that carb too much?
Le Mans Master
Joined: Mar 2017
Posts: 5,116
Likes: 1,610
From: Nor- Cal
A lot of factors go into what works with what.
If you go with just the intake and carb , you would be able to investigate the innards of the engine when you remove the intake .
I would assume you have a hydraulic cam and relatively low compression. You can perform a compression check to get some idea of what you have , and how well the each cylinders matches the others .
If you go with just the intake and carb , you would be able to investigate the innards of the engine when you remove the intake .
I would assume you have a hydraulic cam and relatively low compression. You can perform a compression check to get some idea of what you have , and how well the each cylinders matches the others .
Last edited by silver837; Aug 8, 2024 at 10:43 AM. Reason: spelling
Safety Car
Joined: Sep 2007
Posts: 4,458
Likes: 331
From: Indy Indiana
jeggs or others will have one of those phenolic insulators/spacers ( get a 1/4 inch one ) that will cover the heat holes and insulate your carb from that heat also. those holes do nothing but help heat up your carb quicker to give you better drivability when the engine is cold and warming up. but also result in
hotter carbs and more potential of percolation after your engine is warmed up.. just a solution those einsteins at GM thought up prior to computer controlled fuel injection.
hotter carbs and more potential of percolation after your engine is warmed up.. just a solution those einsteins at GM thought up prior to computer controlled fuel injection.
Drifting
Joined: Jul 2014
Posts: 1,545
Likes: 783
From: Massachusetts
jeggs or others will have one of those phenolic insulators/spacers ( get a 1/4 inch one ) that will cover the heat holes and insulate your carb from that heat also. those holes do nothing but help heat up your carb quicker to give you better drivability when the engine is cold and warming up. but also result in
hotter carbs and more potential of percolation after your engine is warmed up.. just a solution those einsteins at GM thought up prior to computer controlled fuel injection.
hotter carbs and more potential of percolation after your engine is warmed up.. just a solution those einsteins at GM thought up prior to computer controlled fuel injection.
John Hinckley called the hot slot a "failed experiment" that GM only used for a few years. He said it led to multiple carb fires, but did not say why. My guess is that when replacing the carb gasket, some people forgot to install the thin stainless steel shield. That would put the hot exhaust directly in contact with the underside of the carb.
It's probably fine to leave the hot slot holes open, as long as you remember to install the stainless steel shield. If you decide to add a phenolic insulator, the stainless steel barrier should be placed under the phenolic insulator to protect it from direct exposure to hot exhaust gasses.
