I have an NOS BBD that I bought a while back, a guy on the other /6 forum had about 10 of them. (He sold out of them)
Carb number 6537
It's a 318 spec carb.
I had bought 2 of them, wish now I'd have gotten 3.
I put 1 on my son's truck when we super 6'd it.
I have 1 for mine.
And I have another vehicle here I wouldn't mind one for , that one actually has a 318.
Anyways
These carbs have little like "Pinholes" in the throttle butterflies, 1 hole in each barrel.
I also have a few older BBDs here, that are currently collecting dust.
Among the used ones I have around,
1 has the Pinhole In both sides.
1 has a pinhole in 1 barrel but not the other.
And the 3rd used one doesn't have pinhole in either barrel.
All these are 318 spec carbs, don't have the numbers handy.
I remember reading somewhere that it was a "318 thing" and that somehow those holes in the butterflies would not allow that carb to run right on a /6.
I remember when we put the one on my kid's truck, I mixed up some J-B and smeared over the holes.
It ran great. He has since sold the truck, I wish I knew then when I did the work for him that he was gonna do that. But IDK how well the J-B will hold up to a constant spray of gas going thru the carb.
But about the holes in the butterflies/ will they hurt anything if left as they are? Or do they have to be plugged for /6 application?
I thought about zapping them with my mig if so to seal them up/ or else swap those butterflies with the ones in one of my dust collector BBDs that don't have holes.
But being as how this is a brand new carb, and those butterfly screws are staked, I don't really want to be trying to take them out.
If it matters, the /6 in my kid's truck was stone stock, unrebuilt and a stick in a short bed. Unknown gear.
mine is fresh rebuild, reground cam, head and block ground for compression, bigger valves,
727, and a long bed with a 3.21. not gonna rehash the details right now, of the build. as if that may matter regarding a correct answer. What was the purpose of the holes in the butterflies?
Carb number 6537
It's a 318 spec carb.
I had bought 2 of them, wish now I'd have gotten 3.
I put 1 on my son's truck when we super 6'd it.
I have 1 for mine.
And I have another vehicle here I wouldn't mind one for , that one actually has a 318.
Anyways
These carbs have little like "Pinholes" in the throttle butterflies, 1 hole in each barrel.
I also have a few older BBDs here, that are currently collecting dust.
Among the used ones I have around,
1 has the Pinhole In both sides.
1 has a pinhole in 1 barrel but not the other.
And the 3rd used one doesn't have pinhole in either barrel.
All these are 318 spec carbs, don't have the numbers handy.
I remember reading somewhere that it was a "318 thing" and that somehow those holes in the butterflies would not allow that carb to run right on a /6.
I remember when we put the one on my kid's truck, I mixed up some J-B and smeared over the holes.
It ran great. He has since sold the truck, I wish I knew then when I did the work for him that he was gonna do that. But IDK how well the J-B will hold up to a constant spray of gas going thru the carb.
But about the holes in the butterflies/ will they hurt anything if left as they are? Or do they have to be plugged for /6 application?
I thought about zapping them with my mig if so to seal them up/ or else swap those butterflies with the ones in one of my dust collector BBDs that don't have holes.
But being as how this is a brand new carb, and those butterfly screws are staked, I don't really want to be trying to take them out.
If it matters, the /6 in my kid's truck was stone stock, unrebuilt and a stick in a short bed. Unknown gear.
mine is fresh rebuild, reground cam, head and block ground for compression, bigger valves,
727, and a long bed with a 3.21. not gonna rehash the details right now, of the build. as if that may matter regarding a correct answer. What was the purpose of the holes in the butterflies?