R Rugb Member Jul 19, 2022 #1 Does anyone know if an HH70 piston,will work in place of an HH60 piston , if you bore it out? Thanks
R Rivets Lawn Royalty Jul 19, 2022 #2 I doubt you have enough cylinder material to bore it out. HH60 has a cylinder bore of 2.625”. HH70 has a cylinder bore of 2.75”. Also the connecting rods and crankshafts are different. Could get very expensive. Standard piston for HH60 is available.
I doubt you have enough cylinder material to bore it out. HH60 has a cylinder bore of 2.625”. HH70 has a cylinder bore of 2.75”. Also the connecting rods and crankshafts are different. Could get very expensive. Standard piston for HH60 is available.