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1977 Stroked (74c.i.) Stretched Harley Davidson Sportster:
Hi
Bob,
I designed and built this bike a few years ago while learning and
turning wrenches at an indy shop such as yours. It has ALL
aluminum polished, including cases, S&S bottom end with 4
5/8" stroke, BIG valves with high flow ports, dual plugged,
outside oil return heads, Andrews AX (.550) cams (I set the case
half up on the mill table, installed the cams in the old
bearings, made an alloy collet sleeve to fit over one cam end,
and lapped the gears back and forth at 200 rpm until they spun by
hand !!), Karata belt drive primary, Barnett Kevlar clutch kit,
LBV Eng. chain final drive tensioner, Alloy Sprocket Specialties
sprockets, billet rocker boxes frame mounts, Crane HI-4 ignition,
new electric starter system, new generator/voltage regulator, all
new bearings, bushings, seals, etc., Jagg oil cooler, new battery
w/o acid added, billet r. fender struts w/8" fiberglass
fender, my own design and fabricated seat built with an aluminum
pan and gel inserts in the seat area, Kosman widened (4.5")
Kaw KZ1000 cush drive 18" rear wheel with 150mm rubber,
matching Kaw KZ1000 front end, Magura master cylinder, K&N
black chrome superbars, etc. The frame has been extensively
modified by me. The top frame tube is now raised and of 2"
diameter 1020 d.o.m. mild steel. It has a 3" stretch and the
neck is set at 34 degrees. I milled off the casting of the stock
swingarm (leaving enough to keep the mounting ears in correct
geometry, then fabricated a new, wider, lengthened by 1.5",
swingarm using 1.75" x 1.00" 4130 chrome moly
rectangular stock.ALL welding done with TIG, fixtured, and in
perfect alignment. It has been heat treated/stress relieved. The
bike has a 65" wheelbase. I used Progressive Suspension
billet r. shocks with 5 way dampening adjustment.
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