These are the Cylinder Head Bolts for the Intake end of the 450, 500 and 550 Cylinder Head, requires (2), sold each.M10 x 261 x 1.25The Intake Bolts are Shorter M10 x 230. # 90034-004-0000
These are the Cylinder Head Bolts for the Exhaust end of the 450, 500 and 550 Cylinder Head, requires (2), sold each.M10 x 230 x 1.25The Intake Bolts are longer M10 x 261 # 90035-004-0000
All Yokes now have 22mm Bearings, early had 20mm, it is the Yoke Splines that matter.Complete U-Joint Assy with 22mm Bearing End Caps and Yokes (A and B), See Chart Picture.