90-19: 3/8" Aluminum
- Rochester B pump discharge ball
90-158: 3/16" Steel
- Autolite 4100, 2100, 2150: discharge, under the primary venturi screw
- Rochester 4G
- Rochester 2G: main discharge
- Stromberg AAV
90-21: 1/8" Steel
- Holley 1940 (you can use an extra checkball in place of the weight if your weight is missing)
- 1904 & 1920 Holleys this check ball is used on the flat spot of the round accelerator pump diaphragm, under the sleeve.
- Holley 4000 – fits in the pump well.
- Aisan
- Stromberg WW/WWC – goes under the discharge screw
- Stromberg BX
90-12: 5/32" Steel
- Carter YF – main discharge
- Autolite Ford Motorcraft 4100 – secondary check ball
- Rochester B – power valve
- Rochester 4G
90-20: 5/32" Aluminum
- Rochester 4G
- Rochester B: pump inlet ball
- Rochester 2G: bottom of pump well
90-146: 9/64" Steel
- Carter YF
- Carter YH
- Holley 2300
- Edelbrock – pump check (discharge)
90-39: 5/32" Nylon
- Holley 1904 vacuum check
- Holley 4000 (under bottom of carburetor, remove brass screw to access)
17-16-2: .14" square x .538" long
- Carter AFB
- Carter WCFB
- Carter WGD
- Carter WCD
17-16-3: 5/16" long
- Carter AFB & AVS, but keep in mind that these 2 carburetors used 3 different check weights. This is the smallest of the three.
- Carter WCFB
- Carter WGD
- Carter WCD
- Carter YF, YFA
17-67
(used with a checkball)
- Carter YF, YFA
- Edelbrock
- Weber
54-7: 0.17" square x 0.7" long
- Holley 94, 2100, 2110 & Ford AA-1
- Rochester 4G, 4GC, 4 barrel carburetor
17-38: OD .205" x .560 long
17-66: 0.156" OD x .517" long
- Holley pump discharge weight
32-49: OD .097" x .891" long
17-143: 3/8" long
- Carter Thermoquad, TQ
- Carter WCFB
17-17: OD .11" x .88" long
- Autolite 4100
- Motorcraft 2150
- Autolite 2100