7.51 std length hydraulic. late 273 with hydraulic lifters, 318, 340, 360
6.78 pre magnum roller
6.925 roller magnum (92 up)
7.23 hyd. lifter with adjustable rockers
7.34 solid lifter (273)
lifted from the 'other' site
The way aftermarket companies measure pushrods is odd, some measure over all length, some measure the length minus the radius of the ball at the cup end. so if you see a ball and cup that gets 2-3 differenr measurements in the catalog from different manufacturers that usually it.