1974 Harley-Doubleson - Drag Specialties - 5-Page Vintage Motorcycle Article

Description

1974 Harley-Doubleson - Drag Specialties - 5-Page Vintage Motorcycle Article
Original, vintage magazine article
Page Size: Approx. 8" x 11" (21 cm x 28 cm) each page
Condition: Good
Right now ther's only one top fuel bike that has the ability to run as hard and maybe even a little harder with some changes as T.C. Christenson. It belongs to Drag Specialties...Tom Rudd and Jim Preisler...the consensus of opinions was that
more than likely the last round
would be between Preisler and
Christenson. That’s exactly what
did happen, and if you look else-
where in the issue you can get the
whole story.
Its past performance and future
performances could be discussed
for the next 14 pages, and it would !
probably eventually put you to |
sleep. So instead of wasting a lot of '
time, we’ll get down to what you
really want to read about. The bike,
and how it’s put together.
ENGINES
80-cubic-inch Sportsters
314-inch bore — 4-13/16-inch
stroke
Cylinders — aluminum alloy with
steel liners, manufactured by J-R
Component Parts
Flywheels — 4130 steel by J-R
Component Parts
Heads — XLR or XR, flowed by
Jerry Branch
Valves — XLR intakes, XR exhausts
Springs — stock H-D
Collars and keepers — Sifton
Pistons — Venolia 11-1 forged
w/skirt buttons
Comp rings — Forgetrue stainless
step seal
Oil rings — Perfect Circle chrome
98
Rods, shafts, wristpins, bearings,
etc. — all stock H-D
Cams — Sifton minus-minus
Pushrods — D & D tapered
Oil pumps — Modified XLR
14-speed
Balanced to 60% by Decoux En-
gineering, Minneapolis
Carbs — S & S Cycle 1% nitro
Manifolds— S & S, flowed by Jerry
Branch
Magnetos — Fairbanks-Morse, re-
worked by Decoux Eng.
Clutch — sintered iron and H-D
steel plates
Clutch springs — P & M Triumph
racing type
Pressure plate — alloy by Jim
Preisler
Cases— bored, notched and blue-
printed by Lee Mau
Both transmissions removed
CHAINS
Between motors— Litton 950H % x
%-inch
Primary—#35 three-row diamond
Rear—#520 Azusa double-row...
12251-7403-14