higher compression ford aspire B3 Fuel injected

[rockford0310]

Hello everyone. I am from Philippines. I have a Kia Avella B3 Fuel Injected or also known as Ford Aspire in other countries. I am a DIY repair guy. I did already top overhaul, change of timing belt, water pump, oil pump and crankshaft. I did some research about non interference B series engine. My question is, would it be safe to resurface the cylinder head and remove 1.0mm to increase compression ratio? I am expecting there should be no problem if there is still enough clearance (non interference B series engine) to prevent the valve to hit the piston. I understand i need to use higher octane rating fuel to match the higher compression. Need to adjust also the ignition timing.

Would appreciate if one may share their information from actual experience.

[FestYboy]

Yes you can shave 1mm. Doing that will retard cam timing so I recommend you install an adjustable cam gear (b6d/bp gears will fit and you'll have a spare). While the head is off, remove the shelf from the exhaust runners as it is a restriction and a simple process.