provides heads for all Porsches. We sell stock heads for the customer who
needs reliability and quality, performance racing heads for the customer
that needs bottom end torque for autocross needs, or the club racer that
needs power all around. For the racer we give top-end horsepower where he
or she will need it most. We can provide engine heads as either stock or
Ingredients for making a high quality head are the best
quality parts on the market and our expertise rebuilding over 2000 Porsche heads.
Motor Meister has tried many different parts in our
Some are good, some are bad and some are - considered by us - snake oil.
All standard rebuilt Porsche heads come with
- Valve stem seals: We use Teflon valve stem seals. These
seals are made for long life and are sized exact for a fit ensuring an accurate valve stem
lubrication to prevent premature wear. These seals do not come in the factory gasket kit
where they use dark gray seals. We do not use these because they do not provide the
quality we expect.
- Valve guides: Most Porsches came with either copper or
bronze valve guides. Motor Meister uses a phosphorous bronze valve guide. We have never
had a failure with these guides. These valve guides last longer then the silicone bronze
which are better self lubricating.
- Valve springs: Valve springs are all tested for strength
and quality. Each spring is hand inspected for flaws and pitting. A small singular pit can
cause a failure by breaking. Most customers and mechanics only check for strength, but
there is a lot more that they must consider.
- Valves: Every valve is first hand inspected, cleaned,
checked for straightness and then machined serviced on the valve tip and matting surface.
Our valve machinist is set up to do Porsche valves, not big thick American valves. Most
valve jobs we have seen are done by American shops, which do great work for an American
truck! They usually cut too much off the valve matting surface and then it is to thin. If
they are to thin it can lead to a burnt valve. Since some Porsche valves reach the price
of $215.00 each for a 1969 S exhaust valve, you need someone that knows how to save the
valve and machine it correctly, not just replace it.
All heads are cleaned and bead blasted for a quality look.
Motor Meister’s rebuilt Porsche heads come ready to go, fully assembled with the
spring height already adjusted.
Motor Meister has a huge inventory if you need a donor
head, parts, or are doing your own head work. For the do-it-yourselfer, we have over
10,000 used heads, valves, seats and more for all Porsche cars.
We also sell performance heads and racing parts, for the
needs of our racers. All parts sold have been tried and proven by Motor Meister.
- Performance valve springs: A must for the race motor or the
performance street diver. Motor Meister’s performance valve springs are sold in
complete sets. These performance valve springs are made in the USA and are the new
improved higher springs, rather then the stock height of a standard Porsche spring.
- Titanium retainers: These are used for strength and
lightness which reduces the movable weight mass in your drivetrain. The titanium valve
retainers are sold in sets.
- Racing valve guides: Motor Meister’s performance valve
guides are specially designed to reduce restriction in the port flow with a tapered and
shortened valve guide tip. They are 10 Rockwell points harder then stock valve guides and
their strength exceeds 300,000 P.S.I. These valve guides are more than 200% better in
transferring heat than nickel-aluminum bronze ( alloy * 630/63000 ), aluminum silicone
bronze ( alloy * 642/64200 ), and even exceeds phosphor bronze ( alloy * 544/54400 ) with
88% copper! Valve guides are sold in sets.
- Stainless Steel valves: Our stainless steel valves are
light in weight which provides benefits in the rate of opening and RPM limits. The
radius of the head is such that it significantly improves air and fuel flow. Fully swirled
and polished, the stainless steel material also reduces the carbon build up of
today’s gases, which reduces heat and weight.
- Titanium valves: Titanium valves speak for themselves, they
are the strongest and the lightest you can buy. These are for the serious racer.
Motor Meister Inc. 12262
Woodruff Avenue Downey, California 90241
Motor Meister is not
affiliated with Porsche Cars North America or Dr. Ing. h.c.F. Porsche AG.
Porsche®, Porsche Crest® and logos are registered trademarks of Dr. Ing. h.c.F. Porsche
AG. All Copyrights, Registered Trademarks and/or Registered Trade Names are property of
their respective owners.