porting & polishing

[philthepill_389]

dose this put any stress on the engine will i need to change internals


thanks

[loggyboy]

What sort of internals are you thinking of?

either way, from a stress side of things the answer is no.

However to get the most from the porting, a high lift cam would be a good idea, along with moddified inlet and exaust systems (no point in letting more air/fuel though the system if you cant get it in and out as fast).
If you plan on increasing the load on the engine (ie reving it to a higher level) then arp bolts would be a wise investment, as would a gving it a good rebuild/service with genuine parts (head gasket, piston rings etc)

So the answer to your questions directly links to your future plans for the engine mods.

[philthepill_389]

well its got kent cam 4 branch full system fse and k&n but been told and advised a good port and polish will do the trick its due it 6 month service so i will get them arp bolts and in the last service i did head gasket and timing belt any other things i should do

can you do any mods to the inlet

thanks

[Stuart]

didnt think the headgasket was a service part lol......

google for dave vizzard, dave andrews for porting tips etc.

[philthepill_389]

well tec its not but kind of thought 4700 miles of hard use the pig needed one

thanks for info

[mikey14sr]

What engine is it? if it's sri or gte/gsi the ports are good enough as they are.