Austarion

Interesting oil port mod for twincams , claims to cure lifter tick and low oil pressure .

http://www.dsmtuners.com/forums/newbie- ... t-mod.html

are you doing this mate?
really keen to hear some first hand stuff here

yeah ill be getting my engine pulled down soon to sort out some issues and will have a chat to the engine biulder to see what he reckons .

Here's some more on it:

http://www.dsmtuners.com/forums/cylinde ... t151916894

Very compelling read, good thing I'm pulling mine down, I'll have a look at this particularly because I'm running ARP head studs through a 64 head, and I had to enlarge the holes for the head studs. Still quite tight some of them...plus I had a bit of valve tick too...

Oh, I should add that my 64 head is SOHC, and even though technically my response isn't in the right section of this forum it's still a good example for those with DOHC builds or other hybrid motors to check for these issues. :)

Well, I've scalloped the oil feed area back into the stud hole and drilled the stud holes out...the 1/2 inch drill bit I used cut into it almost like a knife into butter. Have to further enlarge the hole for the oil feed, though I may get away with what I've already done...will see how this turns out and will post my findings on here. Waiting for someone to deliver dowels otherwise I would have had more to say. Stay tuned...

Theres plenty you can do to both the heads. Iv'e never seen anyone do mint like i did though. But guess thats just the experience showing which im happy to share.