Head Porting

Started by monsta, February 10, 2015, 04:38:59 PM

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monsta

All done, had them back for a while.
Sorta being slack.. but also working heaps as well.
Also, I did have to send the rear head back to have a crack repaired that I noticed where the guide fits the head.
They were very apologetic, and took full responsibility.
turn around is really good, communication... not so much. expect to ring, email didn't get answered except when the crack was reported.

I ended up getting the full monty.
cnc ported, D ported exhaust, seats and guides, and larger 44.5 mm inlet valve!

cost was about $2000 aus. But that included $400 for freight.

All round, I'm pretty happy with them.
and though I've been slow to get them on I'm keen to see how thy go.

In my defence... It is winter here and I have other bikes  to ride!!   ;D

@Wataboy
They do cut into the oil galley, but they weld it up and re-drill. So no external lines needed. (though, that wouldn't have been a big drama)
93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE

koko64

I wonder what she puts out now.
2015 Scrambler 800

monsta

it doesn't...  :)
I haven't fitted em yet...

Like I said, I'm slack!  :)
But I'm gunna take some time off soon and get it done.
93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE

wataboy

Thanks for the info on the oil passageways.

I noticed you were using IE cams in these heads and not the V2 210's from your other heads . Pardon me if I've missed the explanation somewhere, but why may I ask?

You still using the long manifolds also?

monsta

They are aggressive on the change of direction and may be the cause of dropping valves??
Having said that, I wasn't using the MBP collets and I will be this time around...

Also, Because of the higher lift, the 210's need longer valve's.
93 M900 - 07 ST3 - 00 748s trackbike - 78 900SS - 13 848 EVO Corse SE