Torque Converter
Hub Dimensions (B dimensions on image)
| Converter Type | Lower Limit | Upper Limit | ||
|---|---|---|---|---|
| P.G., TH350, TH400, 727 | 1,872 inch | 47,55 mm | 1,875 inch | 47,63 mm |
| TH2004R, TH700R4 | 1,745 inch | 44,32 mm | 1,748 inch | 44,40 mm |
| 4L60E, 4L60E w/ LS1 (300mm) | 1,745 inch | 44,32 mm | 1,748 inch | 44,40 mm |
| Ford Lower Hub | 1,992 inch | 50,60 mm | 1,996 inch | 50,70 mm |
| Ford Upper Hub | 1,982 inch | 50,34 mm | 1,986 inch | 50,44 mm |
| 904 | 1,495 inch | 37,97 mm | 1,498 inch | 38,05 mm |
Pilot Dimensions (C dimensions on image)
| Converter Type | Lower Limit | Upper Limit | ||
|---|---|---|---|---|
| P.G., TH350, TH400 | 1,700 inch | 43,18 mm | 1,703 inch | 43,26 mm |
| TH2004R, TH700R4, 4L60E | 1,700 inch | 43,18 mm | 1,703 inch | 43,26 mm |
| Ford Big Block | 1,847 inch | 46,91 mm | 1,850 inch | 46,99 mm |
| Ford Small Block | 1,372 inch | 34,85 mm | 1,375 inch | 34,93 mm |
| 727, 904 | 1,807 inch | 45,90 mm | 1,810 inch | 45,97 mm |
| 904 Early Model | 1,547 inch | 39,29 mm | 1,550 inch | 39,37 mm |
Overall converter lengths (A dimensions on image)
| Converter Type | Lower Limit | Upper Limit | ||
|---|---|---|---|---|
| P.G., Turbo | 6,120 inch | 155,4 mm | 6,150 inch | 156,2 mm |
| 2004R, 700R4, 4L60E | 5,844 inch | 148,4 mm | 5,874 inch | 149,2 mm |
| 4L60E w/ LS1 (300mm) | 6,620 inch | 168,1 mm | 6,640 inch | 168,7 mm |
| Pan Fill C-4, C-6, FMX, AOD | 5,895 inch | 149,7 mm | 5,925 inch | 150,5 mm |
| CF C-4 | 5,620 inch | 142,7 mm | 5,650 inch | 143,5 mm |
| 727 NLU | 5,400 inch | 137,2 mm | 5,475 inch | 139,1 mm |
| 904 NLU | 5,345 inch | 135,8 mm | 5,375 inch | 136,5 mm |
Hub Slot Widths and Depths
| Application | Width | Depth | ||
|---|---|---|---|---|
| Turbo 350, 400, P.G., 700R4, 4L60E and 2004R | 0,402 inch | 10,21 mm | 0,501 inch | 12,73 mm |
| TF 727 and 904 | 0,400 inch | 10,16 mm | 0,625 inch | 15,88 mm |
Hub Slot Dep (this dimension should also be considered on Torqueflite converters,
(D dimensions on image)
| Converter Type | Lower Limit | Upper Limit | ||
|---|---|---|---|---|
| 904, 727 | 4,810 inch | 122,2 mm | 4,840 inch | 122,9 mm |
Hub length (X dimensions on image)
| Converter Type | Hub length | |
|---|---|---|
| TH700R4 10" S-10 (245mm) | 2,250 inch | 57,2 mm |
| 4L60E w/ LS1 (300mm) | 2,345 inch | 59,6 mm |
| TH2004R, TH700R4 lock-up | 2,000 inch | 50,8 mm |
| 11" P.G. | 2,125 inch | 54,0 mm |
| All Fords with F-30 hub | 2,313 inch | 58,7 mm |
Hub to converter top dimension (this should be considered on all Torqueflite converters, to insure that no interference is encountered with the pump
(Y dimensions on image))
| Converter Type | Hub to Converter | |
|---|---|---|
| 11" Torqueflite 727 | 1,000 inch | 25,4 mm |
| 12" Torqueflite 727 | 0,813 inch | 20,6 mm |
| 11" Torqueflite 904 | 0,938 inch | 23,8 mm |
| 10" Torqueflite 904 | 1,000 inch | 25,4 mm |
| 10" Torqueflite 727 | 1,125 inch | 28,6 mm |
Bolt Circles
| Converter Type | Bolt Circle | |
|---|---|---|
| Chrysler | 10,000 inch | 254,0 mm |
| GM Small | 10,750 inch | 273,1 mm |
| GM Large | 11,500 inch | 292,1 mm |
| GM LS1 (300mm | 11,000 inch | 279,4 mm |
| Ford Mustang II | 9,375 inch | 238,1 mm |
| Ford Small | 10,500 inch | 266,7 mm |
| Ford Large | 11,438 inch | 290,5 mm |
Fluid Capacity
| Size of converter | Number of quarts |
|---|---|
| 13 inch | 5 qts |
| 12 inch | 4 qts |
| 11 inch | 3,5 qts |
| 10 inch | 3 qts |
| 9 inch | 2,5 qts |
| 8 inch | 2 qts |
| 7 inch | 2 qts |
Runout - runout should be less than 0,25 mm (0,010 inch).
Balance - should be checked with the turbine in at least three positions. This insures that the converter will not be internally out of balance. Overall balance should be held within 10 grams.
Internal Dimensional Standards:
Fit of pilot bushing - 0,10 mm-0,20 mm (0,004 inch - 0,008 inch) typical.
Turbine clearance specifications
| Torque Converter Nominal Size | Turbine Clearance | |
|---|---|---|
| 7.0 inch(178,0 mm) | 0,080-0,090 inch | 2,03 - 2,29 mm |
| 8,0 inch(203,0 mm) | 0,075-0,085 inch | 1,91 - 2,16 mm |
| 9,0 inch(229,0 mm) | 0,090-0,100 inch | 2,29 - 2,54 mm |
| 10.0-12.0 inch(254,0 - 305,0 mm) | 0,100-0,125 inch | 2,54 - 3,18 mm |
Spline locations
| Converter Type | Hub to Stator distance | Hub to Turbine Spline | ||
|---|---|---|---|---|
| G.M.Powerglide | 3,000 inch | 76,20 mm | 4,500 inch | 114,30 mm |
| G.M.Turbo 350 and Turbo 400 | 3,050 inch | 77,47 mm | 4,550 inch | 115,60 mm |
| G.M.Turbo 2004R | 2,375 inch | 60,58 mm | 3,650 inch | 92,71 mm |
| G.M.Turbo 700R4 | 2,375 inch | 60,58 mm | 3,400 inch | 86,36 mm |
| 4L60E w/ LS1 (300mm) | 2,705 inch | 68,70 mm | 4,650 inch | 118,11 mm |
| FORD C-4 | 3,188 inch | 80,98 mm | 4,750 inch | 120,65 mm |
| FORD C-6 | 3,188 inch | 80,98 mm | 4,750 inch | 120,65 mm |
| FORD AOD | 3,250 inch | 82,55 mm | 4,550 inch | 115,57 mm |
| CHRYSLER 727 | 2,800 inch | 71,12 mm | 4,050 inch | 102,87 mm |
| CHRYSLER 904 | 2,800 inch | 71,12 mm | 4,200 inch | 106,68 mm |
Material standards
| Parts | Material (minimum standards) |
|---|---|
| Hub | 1018 Steel |
| Turbine Spline | 1018 Steel |
| Inner Race | 52100 or 8620 Steel * |
| Outer Race | 8620 Steel * |
| Pilot | 1018 Steel ** |
* Requires heat treating
** Some require heat treating
