Welcome to Lockwood Engineering!
We Are Developer's of "Master Lobe Technology"
Makers of Black Widow Cams TM.and legendary Harman & Collins &
Sifton Racing Cams TM.
Former M.M.I. Engine and Rebuild & Performance Instructor
" CERTIFIED" A.S.E. MASTER AUTOMOTIVE MACHINIST
All you ever though about DRAG PIPES
When you add more inch and increase power by 50% the exhaust
gases build up pressure in the pipe as RPM increases and affects the overlap process as well as the O2 sensor that sees the gases as being rich so it wants to lean the engine out but keeps leaning out the engine thru the mid range and the engine will not preform like it should. So it becomes un tuneable
. Also most dual drag pipes that are located on the left end right side of the bike are two different lengths which make a unbalance exhaust system- and then you add baffles ( like putting in a cork ) and that create more back up in the pipe-the gases just cannot get thru the system - so stay away at all cost from Drag style pipes when increasing power with cam, compression and more cubic inch's -
Buy a reliable two into one exhaust system and you will be happy.
COPY this link too see what S&S says about Drag Pipes!!
You may have heard that Harley-Davidson® no longer offers the factory re-manufacturing program for 1984-later big twins, but not to worry!We have been offering a similar service for years. We still do, and our program offers a lot of extras the factory didn’t.
Lockwood Engineering Rebuild Program
has great Features such as:
Premium Bronze valve guides
Manley performance valves
performance 3 angle valve job
Heads are CC
Keith Black Pistons
Cylinders bored oversize
Premium lower end parts and spin balanced!!
You get the same engine back – keep your original VIN
Fast turn-around with a secured Deposit-With appointment
Engines are rebuilt with Premium Engine service parts
Rebuild to stock specs or if you so desire STROKE it! Allow Five extra working days and receive
a 30 day labor and 1 year parts warranty
We ARE the Only Authorized S & S
Engine Warranty & Engine Re-Manufacturing Center
In the state of Colorado and Tri-State
Also we are the only Authorized S & S PRO
Tuning Center For Fuel Injection and Carburetor
in the state of Colorado with:
250I With Eddy Current Braking
(by appointment please)
" IF S & S LOVES US WHY SHOULDN'T YOU "
ALSO Installers of:
TTS Master Tune For Harley Davidson
HEMI ENGINNERING PERFORMANCE HEADS
NO BRAG JUST FACT This is Bolt in POWER
This Dyno Graph done Memorial Weekend 2014
This graph utilized a "stock" 2014 103" with a TTS Master tune
The two graphs illustrate our BW-55 Which was used for the Buffalo Chip Bike build with Terry Components in similar they are in making power
"remember this engine is Bone stock"
This Dyno graph in is it original state with no doctoring done!!!
AS a Reminder We do are own Camshaft design work. Note; The addition of a good exhaust system free flow air
cleaner will enhance these dyno figures
with out doctoring up the graph.
VICTORY M/C Tuning and new
High altitude Cams coming soon
Along with CNC ported cylinder heads
Dyno-Jet power commander 5
Two Stroke Cylinder re Sleeve work
Triumph & BSA Cylinder boring and head repair-
Lower end balancing-including New
H & C Camshafts coming soon !!
Flywheel re building for most 2 stroke and 4 stroke
Professional cylinder work
2 and 4 stroke cylinder head milling
Water craft cylinder boring and honing to +-.0001"
All cylinders Hone with Sunnen method and oil filtration to
5 microns for perfect cylinder wall finish every-time!
True plateau finishes
"NO STINKING BALL HONE's USED HERE"
Harley Davidson engine and all S & S Engine RE Manufacturing
Former Indian, Big Dog, American Iron Horse, Titian
Warranty Center For all Engine Repairs
Tune and carburetor specialist
Thanks to Harvey Crane Jr. for his input to the industry on camshaft design and new techniques to designing cam lobe shapes.
I Personally studied under Harvey James Crane for 16 years!!
August 17th 1931-May 31st 2013
Sadly missed but Gladly Remembered !
Also my First Camshaft mentor Dema Elgin
who took me under his wing and taught me valuable lessons on
Life and Camshaft design
in the early 80's while being employed as his first
#2 cam machine operator
CLICK LINK BELOW TO HEAR THE BEAST ROAR INSTANT POWER
"Powered with Black Widow Cams"
Steve Thomson @ Thomson Superchargers Depends on the info and
technical support that Lockwood Engineering supplies to
him whether in theory or general practice -
Harman & Collins Racing Cams
For Vintage Automotive & MC
The Late Kenny Harman & Clifford " Cliff" Collins
over 1000 vintage profiles Both stock and performance
From Flat Head Fords....To........
Clifford Collins a Graduate Engineer made racing cams for
Mickey Thompson-Bud Hare - Johnson Motors JOMO cams
Art Sparks racing Triumphs & BSA's - A.J. Lewis's Triumph
Assets of H & C and intellectual property.
replacement cams Like
or similar too H.D.S.E. in Gear Drive
(imagine your performance emission cam in gear drive)
Camshaft design and Re-design using Master Lobe Technology TM.
For private label customers who want the cam they can sell under their name
C.N.C. cc'd Ports for Twin Cam cylinder heads with
Bronze Valve guides- With Manley Performance TM.
" bead-lock" 1.900 & 1.625 Valves 88 to 103 CID
2.000" intakes and larger for Large Bore Engines
Also: Exclusive Signature Series Cams From Dema Elgin For SCCA - NHRA - NASCAR - Bonneville
Our new site is under construction
2015 NHRA Lucas Oil Screamin'Eagle schedule
Harley-Davidson Master Engine Technician @ work
Dyno-Jet 200-I and Super Flow 901 on location
S&S Sidewinder - EFI Protune & Engine warranty Center for all S&S Engines
We have been building big inch engines for 38+ years in our full line machine shop. Other services available are not limited to just head work on Harley-Davidsons, We also do Porsche, BMW
We also do over bores & re-sleeve 2 and 4 stroke engines.
Sleeper Cylinders that keep your original
appearance for 1984-up Harleys.
Larger bore sizes for more HP & Tq like 4.125 in your original Harley Twin Cam cyl. that is 107 with 4" stroke! Or 3.625 bore out of your stock evo cylinders. Crankcase boring required for these Cylinders Evo or Twin Cam.