Little testing on M8 heads

 in Head Hoggers  tagged big inch engine kits / custom cp pistons / harlay head porting / harley 4 valve porting / harley big inch kits / harley bore and hone / harley case service / harley engine machining / Harley Milwaukee 8 kits / Head Hoggers / Milwaukee 8 head porting / mobile motorcycle tuning by (updated 2192 days ago)

Here is bone stock flow on a M8 head with stock TB.

Then there’s just valve job

Then valve job with back cut on valve and light seat/bowl blend.

Then there’s bigger valves, port work and bigger TB. Stock valve guides never removed!!

I guess it’s time to really start porting the heads. Lol.

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