ok, just got an "i" head relatively good condition except for a few bent valves which I think was due to the head sitting on the valves. I am in the middle to taking it all apart right now and was wondering about the best way to clean everything and what to replace while it's apart.
I plan to bust out the dremel and mildly polish as much of the head as I can get to, as well as port matching the intake and exhaust ports to the gaskets. here are my takes on the initial inspection of the parts... but I'm no expert since this is my first time playing with it...
325i m20 head - 110k miles at time of removal
valves - a few bent... should I got with oversized valves since I'm prolly going to have to regring the valve seat anyways? and where shoudl I get the oversized valves?
rocker arms - they look fine to me, but some say to jsut replace them. are there upgrades for this? they don't seem to have any wear on them.
cam - looks fine, but since I'm building a 2.8l stroker turbo motor... should I look into a new grind from racetep? car must still be streetable since it's going to be my daily driver, so I don't want to skew the powerband too much...
valve springs and other parts - they look fine to me... it's already got the dual valve springs, shoudl I do anything in this area? Ti valve retainers? heat treated valve guides? o.O
head itself looks fine, no cracks, no discolorations...
ALSO, when I get all the stuff and start putting it back together, what should I lube it with? can I jsut used the regular amsoil motor oil that I run in my car? or is there a special assembly grease that I should use?
thanks.
--crossposting in DTM and r3v...
I plan to bust out the dremel and mildly polish as much of the head as I can get to, as well as port matching the intake and exhaust ports to the gaskets. here are my takes on the initial inspection of the parts... but I'm no expert since this is my first time playing with it...
325i m20 head - 110k miles at time of removal
valves - a few bent... should I got with oversized valves since I'm prolly going to have to regring the valve seat anyways? and where shoudl I get the oversized valves?
rocker arms - they look fine to me, but some say to jsut replace them. are there upgrades for this? they don't seem to have any wear on them.
cam - looks fine, but since I'm building a 2.8l stroker turbo motor... should I look into a new grind from racetep? car must still be streetable since it's going to be my daily driver, so I don't want to skew the powerband too much...
valve springs and other parts - they look fine to me... it's already got the dual valve springs, shoudl I do anything in this area? Ti valve retainers? heat treated valve guides? o.O
head itself looks fine, no cracks, no discolorations...
ALSO, when I get all the stuff and start putting it back together, what should I lube it with? can I jsut used the regular amsoil motor oil that I run in my car? or is there a special assembly grease that I should use?
thanks.
--crossposting in DTM and r3v...
Comment