snot35 Posted May 23, 2007 Report Share Posted May 23, 2007 G'day everyone, I'm mucking around with the head on a 3K, can anyone tell me what the normal height from head gasket face to cam cover gasket face is? How much can these heads be shaved?? It's a later type head with the normal style valve retainers, and tiny 25mm intake ports! Soon to change though ;) Anyone know what the seat pressure of stock springs is? Cheers Mike Quote Link to comment Share on other sites More sharing options...
jamesrolla Posted May 24, 2007 Report Share Posted May 24, 2007 ive got a bigport head and it has aparently been plained down 80thou, will have to see how it goes on my 5k, Quote Link to comment Share on other sites More sharing options...
aidaniel[RL] Posted May 24, 2007 Report Share Posted May 24, 2007 isnt the 5k a dished motor and the 3k bigport a flat top???? :D Quote Link to comment Share on other sites More sharing options...
Robert Posted May 24, 2007 Report Share Posted May 24, 2007 Not all 5ks are dished All 3ks are flat tops Quote Link to comment Share on other sites More sharing options...
jamesrolla Posted May 24, 2007 Report Share Posted May 24, 2007 my 5k is flat top Quote Link to comment Share on other sites More sharing options...
old corolla bloke Posted May 24, 2007 Report Share Posted May 24, 2007 (edited) G'day everyone, I'm mucking around with the head on a 3K, can anyone tell me what the normal height from head gasket face to cam cover gasket face is? How much can these heads be shaved?? It's a later type head with the normal style valve retainers, and tiny 25mm intake ports! Soon to change though :D Anyone know what the seat pressure of stock springs is? Cheers Mike in the past Ive shaved 100thou from one of the later 3k heads then the bastard pinged its butt off until I put a bigger cam in and twin webers........probably still pinged but i couldnt hear it. try about 70 thou as a start old corolla bloke Edited May 24, 2007 by old corolla bloke Quote Link to comment Share on other sites More sharing options...
snot35 Posted May 24, 2007 Author Report Share Posted May 24, 2007 Thanks all, that's pretty much what I had in mind. Any ideas about the springs? Cheers Mike Quote Link to comment Share on other sites More sharing options...
chrisandliz[RL] Posted May 25, 2007 Report Share Posted May 25, 2007 (edited) Thanks all, that's pretty much what I had in mind. Any ideas about the springs? Cheers Mike this is all i can do hope this helps Edited May 25, 2007 by chrisandliz Quote Link to comment Share on other sites More sharing options...
Felix Posted May 25, 2007 Report Share Posted May 25, 2007 ive got a bigport head and it has aparently been plained down 80thou, will have to see how it goes on my 5k, A head that gives 9:1CR on a 3k, would give around 11:1 on a flat top 5k. Even more if skimmed. :D Quote Link to comment Share on other sites More sharing options...
snot35 Posted May 25, 2007 Author Report Share Posted May 25, 2007 this is all i can do <attachment> hope this helps Thank you very much!! That's brilliant, you have a factory manual?? Do you the head height limits?? Thank you again, that's great. Mike Quote Link to comment Share on other sites More sharing options...
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