Garys72Duster
Well-Known Member
Last edited:
The treads holes are so shallow I dont know how you drill and tap them without getting into the converter housing.View attachment 1715782776 View attachment 1715782764 View attachment 1715782764 View attachment 1715782764 Bought a 72 Demon complete, less engine, set up for racing. Came with a 727 tranny, and a hi stall 10 inch Torque converter. But it has the small 5/16 bolts that attach the flex plate to the torque converter. I think I'll re tap the threads for 3/8 bolts, as I have some already. The flex plate is the smaller street hemi type, with a diameter of 10" I've never seen a performance T converter with the 5/16 bolts, except on a stock 383. Has anyone used the 5/16 bolts on a 512 stroker motor? I just don't think they are strong enough. Any ideas?
View attachment 1715782760
I would not thrust them.Are the 5/16 bolts strong enough for a 512 stroker motor?
Are you sure the car had a BBM in it?View attachment 1715783132 Heres a pic of the flex plate bolted to the T Converter.
This is definitively a 727 for a big block. Plus the plate fits the converter, and the crankshaft. I'll check to see if the converter fits into the tranny splines ok.Are you sure the car had a BBM in it?
That looks like the setup that is on my 340.
Different 727 trans SBM vs BBM not the same.
Is the difference on the input shaft splines?Are you sure the car had a BBM in it?
That looks like the setup that is on my 340.
Different 727 trans SBM vs BBM not the same.
Not sure about the input shaftIs the difference on the input shaft splines?
View attachment 1715782776 View attachment 1715782764 View attachment 1715782764 View attachment 1715782764 Bought a 72 Demon complete, less engine, set up for racing. Came with a 727 tranny, and a hi stall 10 inch Torque converter. But it has the small 5/16 bolts that attach the flex plate to the torque converter. I think I'll re tap the threads for 3/8 bolts, as I have some already. The flex plate is the smaller street hemi type, with a diameter of 10" I've never seen a performance T converter with the 5/16 bolts, except on a stock 383. Has anyone used the 5/16 bolts on a 512 stroker motor? I just don't think they are strong enough. Any ideas?
View attachment 1715782760