26 years of high performance automotive
cylinder head and related parts engineering, design and manufacturing can be
found here at Advanced Motorsports Technology and its subsidiary SoCal
Our President, Guy Tripp, started his career as a high performance engine
builder and automotive machinist in 1980 while studying Mechanical
Engineering at Cal
In 1982, Guy accepted a position at Airflow Research as a machinist. At that time Airflow Research was
recognized as one of the top cylinder head porting companies in the
country. They were the only company at
that time that was capable of CNC porting cylinder heads. During the early to mid 1980s AFR was under
contract to General Motors to design the ports and develop the small block
Chevy aluminum cylinder head for use in NASCAR Winston Cup racing.
In 1986, Guy set up a state of the art Superflow 901 Engine dyno cell. What began as a test only facility quickly
evolved into Guy building competitive racing engines for many of the West
Coast’s top racers in both NHRA and NASCAR.
The next few years Guy
was promoted to Vice President in charge of Engineering. In this position, Guy was responsible for
digitizing internal port cavity designs; creating surface models; designing
fixturing, providing specifications for tooling, and writing programs to
machine these features. This included an internal cavity known as the
Guy was also responsible
for the majority of the external design with regard to rocker arm geometry,
valve heights, spring heights, bolt hole locations as well as their
relationship to the existing engine.
Guy had the primary
responsibility for interfacing with the “foundry tooling maker”
for having the molds made to cast these parts as well as making sure they
emulated the original design and were production ready.
Guy was responsible for deciding which CNC machines to purchase and how they
would fit into or improve the existing production line; and, once the part
was in production he was responsible for troubleshooting any problems that
The accomplishments of
the above during Guy’s tenure resulted in:
1. The SBC cylinder head manufacturing process being
refined and perfected. These cylinder
heads later became the first emission legal aftermarket aluminum cylinder
heads available in the country. Featuring a 55 RWHP increase and staying
within all applicable emission standards made these a very popular choice
with performance enthusiasts all over the world.
2. The small block Ford line of cylinder heads were released
to the market. Again, as the first in
the industry to offer an emission legal high performance cylinder head, the
Ford community quickly became huge fans of this innovative product.
3. Guy leading the team in the manufacture of a Big
Block Chevrolet line of aluminum cylinder heads to the market. This line of cylinder heads quickly rose to
the top of the industry and raised the bar for other manufacturers to try and
4. Guy leading the team in the design and manufacturing
of an LS-1 Gen 3 aluminum cylinder head line.
These were the first aftermarket aluminum cylinder heads for the Gen 3
engine. They were emission legal and
featured many innovative qualities.
Once again these cylinder heads quickly became the must-have item for
any serious LS-1 build up.
Guy also had many other
accomplishments in the industry. In
1994, further expanded his machining abilities to include simultaneous 5 axis
CNC cylinder head porting. At this time
there were less than a handful of companies that could accomplish this very
difficult machining operation.
In 1996, Guy was granted his first United States Patent for a
hydraulic roller valve train stabilization device known as the
Hydra-Rev. This device is still
manufactured and marketed today.
In 1997, Guy pioneered the fixturing and programming of a Haas HS-1R
horizontal machining center for simultaneous 5 axis CNC porting of cylinder
heads. This machine and fixturing
would become the industry standard for this type of cylinder head work.
In 1999, Guy’s extensive experience was put to the test: to program and
fixture the first of two MAZAK pallet changing CNC machining centers. These machining cells were capable of
processing 20 cylinder head castings at one time.
In 2001, after spending many years in the dyno cell and at the race track
testing, Guy realized a life long dream of competing in a NASCAR stock
car. He began his driving career in
the Modified Four division at Irwindale Speedway in California. The 2001 racing season saw Guy set many
track qualifying records and win the series championship in only his first
year of competition. The 2002 racing
season was more of the same.
In 2003, constantly challenging himself, Guy and his racing team moved up to
the Late Model stock car division at Irwindale Speedway. Guy qualified second in his second race in
this brand new car during an open comp race at Mesa Marin Speedway in
Bakersfield, California where more than 60 cars were trying to make a 30 car
field during the October Classic.
This was a ½ mile high banked track that Guy had only driven once
before. The 2003 racing season saw Guy
take the “Rookie of the Year” honors in this very competitive
division at Irwindale Speedway’s extremely fast ½ mile race track.
In 2004, Guy discovered his passion for Diesel performance by modifying his
2003 Chevy Silverado pickup powered by a Duramax Diesel and Allison
transmission. Since then Guy has
applied his technical knowledge and experience to furthering the performance
of the Duramax diesel engine.
In 2005, Guy set his sights on the design of a Robotic CNC manufacturing
cell. This cell would feature four
630mm Horizontal pallet changing machines fed by 3 robots. The cell would be capable of running
completely unattended by humans for days at a time and would include
“in process” quality control inspection using a state of the art
CMM. Literally, raw castings would be stacked at one end and complete
machined and inspected cylinder head castings would be fed out and
automatically stacked at the other end without human intervention.
In June of 2006, Guy launched “Advanced Motorsports Technology”
and the “SoCal Diesel” line of products in order to apply many of
the concepts and technology that he has pioneered in his career to the Diesel
SoCal Diesel was the first to release CNC ported Duramax cylinder heads to
SoCal Diesel also worked very closely with the EFILive team in New Zealand
in order to make Duramax engine tuning software available to the general
The results of Guy’s efforts in Duramax performance can be further
explored on this web site.
Starting with CNC ported Duramax cylinder heads and a complete line of
supporting parts, SoCal Diesel is the #1 place to come for your
Duramax performance needs.
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