constantly strive to provide
remanufactured cylinder heads
& engines of a
high quality at a market price
that reflects a competitive
cost for the level of quality
and service provided. We believe
in always doing what we say.
Ensuring that your project
comes in on time and on budget
beneficial long- term relationships
with customers, suppliers
and employees is of key importance
to us. We constantly look
for better ways to support
them and will respond to their
changing requirements by broadening
our capabilities and investing
in new technologies.
#1: CLEANING CYLINDER HEAD
Cleaning may be the single most
important process in aluminum head
repairing. After complete disassembling
and stripping, we wash and
our aluminum heads in state-of-the-art
washers and pressure blasters. Our
comprehensive process assures all
contaminating deposits are removed
prior to welding.
STEP #2: WELDING THE CYLINDER HEAD
Our state-of-the-art welding equipment
repairs all cracks to original manufacturer's
specifications. After welding,
the aluminum head is pressure tested
again to insure proper sealing of
STEP #3: PRESSURE TESTING
In order to repair all cracks in
the aluminum head, we thoroughly
pressure test each and every aluminum
head up to five times, or more!
This comprehensive pressure testing
insures all cracks are repaired
properly. It is the only way we
can offer the best warranty in the
STEP #4: LINE BORING
The camshaft bearing bores must
be re-bored to assure precision bore
size and alignment of camshaft bores
to factory specifications or better.
Only state-of-the-art equipment
can continuously bore camshaft bores
to our strenuous quality standards.
STEP #5: JET WASHING
After precision boring, the aluminum
head is vigorously cleaned of any
damaging debris remaining from the
welding and grinding process. Our
strenuous quality checks assure
this extremely important process
is completed with the integrity
necessary for the best warranty
in the industry!
STEP #6: ASSEMBLY
After careful and thorough inspection,
the valves and valve guides are
tested to avoid excessive oil burning.
All valve springs maintain factory
tolerances. We use only the highest
quality valve stems to maintain
complete operating integrity of
the aluminum head. We also offer
quality head gasket sets to assure
complete adherence to quality standards.
STEP #7: VACUUM TESTING CYLINDER
The final stage of complete repairing
is thorough vacuum testing. This
process assures proper sealing of
all valves and proper cylinder compression
upon installation. After testing,
the aluminum head is inspected again
prior to careful packaging in plastic,
maintaining the cleanliness of your
It is carefully packaged & shipped
to you ready for installation.
believe in always doing what we
say. Ensuring that your project
comes in on time and on budget.
Machine co. 503-231-4323 Toll
Machine co.© Copyright 2005-2009
All rights reserved.
CHS Machine Co.
© Copyright 2009 All rights reserved.