This one makes me a little nervous as it involves the back-and-forth
shipping of empty cases: bulky and fragile. Be sure to empty all
fittings and just send in the basre aluminum with the cast-in iron parts. Bolt them securely together.
Lay multiple layers of bubble wrap around them. Fill with styrofoam "peanuts" or expanding foam.
Anything that must be removed or scraped off on our end will incur more costs to you --
if you expect to get them back.
What we'll do:
Chemical dip (unless you ask us to skip it) to strip all grease and dirt.
Blasting with several grades of beads, ending with walnut shells. All oil passages will be blocked at this stage.
Optionally, we'll powder-coat black or silver inside; your choice outside.
Your main bearing bores will be hard chromed down to 90mm ID and the 6308 bearings of your choice will be seated.
Bearings that have oiling channels and oil holes could have passages bored into the transmission feed lines
in order to make sure that there is no starvation problems as stock these bearings are fed by splash.
Case spigots bored to appropriate girth for your application.
We'll look into a maximum bore cut with snug-fit aluminum rings for smaller sizes included.
All potential obstacles to long stroke cranks will be fly cut off; all iffy protrusions.
New dowels for oil passages and a plugged tap hole for those that want to run an oil cooler
from near the pressure release, rather than off the filter cover.
That's all that comes to mind at the moment. No prices set. Reckon on $65 each way on shipping.
I must get quotes on plating and powder coating and prices on various bearings.
All of these procedures take place elsewhere.
Before you ask, do NOT ship complete engines for us to build.
This location is not zoned for it. And we can't afford to farm it out.
Shipping and transportation add up and no matter how good of friends we are with third parties,
they won't work for free.
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XVs have odd sized valve stems and faces. I have the cutting heads and pilots necessary
to give (920 and larger) 5 angle valves jobs. The rocker shafts are incredibly tight in the heads.
I have the proper slide hammer. The valve springs and retainers are larger than practically all motorcycle
valve spring compressors. I have one that works. The intake port is of smaller inside diameter than the
rubber flange of a 40mm carb. I have a lot of carbide cutters.
I can enlarge the intake ports and broaden the exhausts. I can give elaborate 5 angle valve jobs.
I can assemble the valve train: rockers you have bought; valves you have bought.
If necessay, I can install the cams and bearings.
The heads will work and you can avoid a lot of nit-picky work and potentially broken parts.
It's not cheap:
$450 exchange.
I can work on your heads, or build some from inventory and swap you when they are done.
I work slowly, so I can only build a pair every couple of days.
Keep in mind that you won't be getting a thousand dollar port-and-polish.
For one thing there is very little room above the exhaust port. When learning I broke through
to the exhaust spring base - oil everywhere. And secondly, I don't believe in intake ports
smoother than about 240 grit. See here.
If you want rockers, valves, springs, and adjusters as part of this operation it runs
$1325
You will likely have bought your springs as part of a cam set which drops this operation to
$975
Please send your heads with rockers in place, the valves in, if possible, the studs and dowels out,
and clean the grease off as well as you can. You may not get your original heads back
unless you specify that that should be the case. Please: no broken fins or scratched gasket lands
I don't send out heads or barrels from inventory that are obviously damaged and I expect the same for those coming in.
You'll get back attractive, durable heads with internal hex driven intake and grade 12.9 exhaust studs.
Economy options? Usable pre-owned valves and springs revitalized, three-angle valve jobs, Clean unhardened rockers.
Clean the dowel holes and provide good used dowels. Roller cam bearings. Broken fins get you the same heads back.
Good used adjusters and jam nuts. Open the intake. Reassemnble.
That's 300 for the work, 100 for the valves, and 100 for the rockers, totaling
$500