HarleyTechTalk

Technical Forums => Milwaukee-Eight => Topic started by: 838 on June 10, 2020, 04:56:30 PM

Title: Harley 107-128” kit piston volume.
Post by: 838 on June 10, 2020, 04:56:30 PM
I'm assuming the 128" piston and cylinder kit from HD comes with flat top pistons. Does anybody know the piston volume and/or what compression these are at with the stock 107" m8 heads? How far down in the hoke are these typically landing without zero deck?

Thanks
Title: Re: Harley 107-128” kit piston volume.
Post by: Nastytls on June 11, 2020, 05:16:27 AM
Depending on who you ask, the 128 kits are 10.5-.6 with the supplied heads. According to GMR the kit heads have 94cc chambers and the factory have 85cc. GMR has a video on his FB page where he breaks down the kit.