porting

I have decided to jump into the world of porting. I have started with removing the sharper corners and around the valve guides How much more can I take out before I lose too much bottom end? Please be gentle it's my first attempt. I still have to finish them off I just want to know if I...

Who can do a good port and polish on a rtc-8 head for cheap? Don't want to spend a lot but I don't feel comfortable doing it myself.

Today I finished porting a 14cc clone head for I friend of mine . Here are some pics

Hiya folks. I am allowing my almost 14 year old boy to do ALL the work on our minibike project. Its a GREAT learning experience for him, but I am having a heck of a time not helping him. So far, I haven't touched it, but I need an opinion. He practiced on a stock head with a dremel tool...

I have some questions about some mods to a non hemi that i have been thinking about. First, would porting intake and carb do any good? Second, is there a different head you can put on a non hemi to increase combustion? And third, what are your thoughts about putting a 49cc nos kit on a non...

Gonna be doing some porting on my 18cc Predator head soon. New to porting, never done it before but I have a general understanding of what the process involves and the tools needed. It is to my knowledge that it is hard to mess up these heads (unless you have Parkinsons or something) with...

Gonna be doing some porting on my 18cc Predator head soon. New to porting, never done it before but I have a general understanding of what the process involves and the tools needed. It is to my knowledge that it is hard to mess up these heads (unless you have Parkinsons or something) with...

Currently running a stock 14cc Gx160 head that had a little port work and unshrouding of valves done to it on my 212 pred. Still have my 212 stock head wondering what I should do get the 160 head worked on or the 212 head worked on .. Bigger valves and porting. What size valves too... Mods...

Anyone do any of there own milling and porting at home

building

building

building

building

intake manifold

pictures of exhaust and intake ports, Briggs engine

pictures of exhaust and intake ports, Briggs engine

pictures of exhaust and intake ports, Briggs engine

pictures of exhaust and intake ports, Briggs engine

I am working on a Predator and got a Mamba JR cam going into it. My plan was to clean up the ports on the head, but once I opened it up, they look pretty smooth and I am not seeign the typical cast flashing. Obviously it needs some polishing but I don't see a need for a lot of grinding and...

Old style gx160 head(27mm/24mm) Going to port it and mill it prob .065 or more depending on clearance Flat top piston file fit rings Stock bore Arc +.020 con rod NrRacing 307-1006 cam CM pushrods 1.3 billet rockers Dual springs Arc billet aluminum flywheel 6619 (8* advance) On 110octane...