Recently 63falcon4drwagon wrote:
"I just installed a China made $72.00 Carter BBD lowtop 285 cfm two barrel on my large log 1978 200 head.
Both the cable throttle and cable C4 kickdown cable are connected to the gas pedal under the dash.
I welded an arm on to the carb choke linkage to use my stock 1963 choke cable.
The Carter BBD has 1 1/4" throttle bores which are closely spaced making it an easier conversion than a Holley or Autolite.
The adapter I was made from 1" x4" x 6" aluminum.
The carb has to be turned at an angle which turned out great for my 1978 Fairmont cable throttle linkage modifications
I had to raise the carb higher to clear the valve cover so I made an 1/2" red oak carb spacer out of two pieces of 1/4" oak fiberglassed together.
These Chinese carbs don't come with an air cleaner hold down bracket. I had to make one.
I have the stock 1963 Falcon air cleaner modified to fit this carb.
The 1" aluminum is easy to drill and to cut with a router bit.
After drilling 3 pilot holes my tiny drill press would not cut a 1 3/4" hole saw so I used a heavy duty 1/2" hand drill.
The intake and adapter is hogged out so this adapter is not some silly funnel setup.
It seems to be all the carb or more than this stock engine needs. I was building the adapter for another engine I'm rebuilding but decided to try it on the engine already in my Falcon. I enlarged the intake after stuffing rags and grease in the log. I think the Sniper would work at an angle. The angled stud holes on the intake need to go between the outer carb mount holes when making a one piece adapter. This puts the carb at an angle. My cable throttle would not have been long enough if not angled.
273 ~ {1964 thru 1969} Carter BBD {1.437" Throttle Plates x 1.063" Venturi}.......... 275 CFM Rating
318 ~ {1968 and up} Carter BBD {1.437" Throttle Plates x 1.186 Venturi}............ 285 CFM Rating
383 ~ {1962 thru 1971} Carter BBD {1.563" Throttle Plates x 1.313" Venturi}.......... 365 CFM Rating"
I got that image to print at scale by enlarging it 116% in my printer dialog.
The maximum BBD bore opening is around 1 9/16" x 3" vs 1 11/16" x 3 9/16" for the 2300 and a pad size of 4" vs 5 1/8". It can flow more than most of us will ever need. Holley claims their Sniper version can support up to 350HP.
63falcon4drwagon mounted one directly to his head by shifting it inline with the bolt holes for the bore to fit in between them on the stock carb pad. I'd love to see some pictures of that set up showing the linkage and clearance to the valve cover. I'm fascinated by this carb b/c of it's footprint mostly but it has an interesting history and the fact that holley released the sniper bbd puts it right into the wheelhouse of what I want to do for my van.
Looking at the stock lrg log head this carb will mount onto the length of the stock carb pad along the log. I'm thinking mill it flat, bore it out and make a simple adapter to bolt it to the log with studs for the carb and never hardly get outside of the length of the stock mount on the log. It looks like it aligns best with the log if the outer edge of the bore aligns to the outer edge of the 1 3/4" bore on the log. Iow, aligning the bbd's inboard pad side to the long flat inboard edge of the stock carb pad. And that keeps it as far away from the valve cover as practical. The question is how high it needs to be to clear the valve cover and which orientation best suits it and the fuel lines and linkage.
"I just installed a China made $72.00 Carter BBD lowtop 285 cfm two barrel on my large log 1978 200 head.
Both the cable throttle and cable C4 kickdown cable are connected to the gas pedal under the dash.
I welded an arm on to the carb choke linkage to use my stock 1963 choke cable.
The Carter BBD has 1 1/4" throttle bores which are closely spaced making it an easier conversion than a Holley or Autolite.
The adapter I was made from 1" x4" x 6" aluminum.
The carb has to be turned at an angle which turned out great for my 1978 Fairmont cable throttle linkage modifications
I had to raise the carb higher to clear the valve cover so I made an 1/2" red oak carb spacer out of two pieces of 1/4" oak fiberglassed together.
These Chinese carbs don't come with an air cleaner hold down bracket. I had to make one.
I have the stock 1963 Falcon air cleaner modified to fit this carb.
The 1" aluminum is easy to drill and to cut with a router bit.
After drilling 3 pilot holes my tiny drill press would not cut a 1 3/4" hole saw so I used a heavy duty 1/2" hand drill.
The intake and adapter is hogged out so this adapter is not some silly funnel setup.
It seems to be all the carb or more than this stock engine needs. I was building the adapter for another engine I'm rebuilding but decided to try it on the engine already in my Falcon. I enlarged the intake after stuffing rags and grease in the log. I think the Sniper would work at an angle. The angled stud holes on the intake need to go between the outer carb mount holes when making a one piece adapter. This puts the carb at an angle. My cable throttle would not have been long enough if not angled.
273 ~ {1964 thru 1969} Carter BBD {1.437" Throttle Plates x 1.063" Venturi}.......... 275 CFM Rating
318 ~ {1968 and up} Carter BBD {1.437" Throttle Plates x 1.186 Venturi}............ 285 CFM Rating
383 ~ {1962 thru 1971} Carter BBD {1.563" Throttle Plates x 1.313" Venturi}.......... 365 CFM Rating"
I got that image to print at scale by enlarging it 116% in my printer dialog.
The maximum BBD bore opening is around 1 9/16" x 3" vs 1 11/16" x 3 9/16" for the 2300 and a pad size of 4" vs 5 1/8". It can flow more than most of us will ever need. Holley claims their Sniper version can support up to 350HP.
63falcon4drwagon mounted one directly to his head by shifting it inline with the bolt holes for the bore to fit in between them on the stock carb pad. I'd love to see some pictures of that set up showing the linkage and clearance to the valve cover. I'm fascinated by this carb b/c of it's footprint mostly but it has an interesting history and the fact that holley released the sniper bbd puts it right into the wheelhouse of what I want to do for my van.
Looking at the stock lrg log head this carb will mount onto the length of the stock carb pad along the log. I'm thinking mill it flat, bore it out and make a simple adapter to bolt it to the log with studs for the carb and never hardly get outside of the length of the stock mount on the log. It looks like it aligns best with the log if the outer edge of the bore aligns to the outer edge of the 1 3/4" bore on the log. Iow, aligning the bbd's inboard pad side to the long flat inboard edge of the stock carb pad. And that keeps it as far away from the valve cover as practical. The question is how high it needs to be to clear the valve cover and which orientation best suits it and the fuel lines and linkage.