Shaving a head

[Sassa Massa]

I've been reading about shaving the stock head and I think I'd like to give it a try. Problem for me is, I've seen so many different answers that I don't know what is safe, and what isn't. I'm below 1000 ft. above sea level (right around 700 i think) and I'd like to know how much I can take off the head and still be able to run pump gas safely. Thanks a million!

[Guest nightmare]

You can take up to .030 of an inch off it. I am at 700ft and I took .025 off mine. My Banshee runs fine on pump gas.

[FIRST BANSHEE]

I also took .025 off mine with no problems with 93 octane.

passion had a post about the squish band,how it effects the way the engine runs,and how it effects the powerband.

[banshee tuner]

Don't take more than .030 off without having the domes recut or it will run worse. I'm at sea level and had .025 taken off mine and run 150psi compression and runs good on 93.

[sycoracer911]

u guys feeling ne increase's with that 25 milling

[banshee tuner]

I felt a great increase from it, mostly in the first 3 gears. Definately a great mod for the money.

[MDS2106]

Small improvements add up,but I didn't notice much difference at all from just milling the head. Maybe a tad more on the bottom end if any.

[sheenut05mx]

If going over .030" you'll definitly have to have the domes rechamberd,it's shape has a huge affect on the swirl and port flow and you will definitly see the powerband fall at the top end. I would recommend use a 50-50 mix of 110 octane and pump gas for some cheap insurance, even if staying and .025". You will also be able to run it leaner on the jetting with out chance of detonation, and it will also be less sensative to preignition. You will also be able to add more timing