478
Shovelhead Long Block is an 80 or 88 cubic inch displacement featuring a S&S crankcase, Sifton oil pump/breather assembly
and a stock or 4⁵⁄₈” stroke flywheel, Timken bearings, a stock cam properly installed with a matched pinion and cam gear with a
Torrington bearing. Assembly is supplied with a chrome nose cover and chrome lifter blocks which are fitted with hydraulic tappets
and stock style pushrods. Cylinders are 3¹⁄₂” stock style with standard compression pistons and Hastings rings. Top end includes
stock type single plug heads with stainless valves, with shafts and arms installed. Order manifold (flat seal type), stator and ignition
system separately. Pre‑run factory tested for oil pump pressure.
VT No.
Size
Stroke
10-2001
80”
4¹⁄₄”
10-2017
88” features 4⁵⁄₈”
Long Block
V-Twin
TM
Replica
Long
Block
10-2017
Short Block
V-Twin
TM
Short Blocks are shipped fully assembled as shown.
All units feature an S&S crankcase (except where noted), Sifton
oil pump/breather assembly, stock stroke flywheel, Timken bear‑
ings, stock cam properly installed with a matched pinion and cam
gear with Torrington bearing. Assembly is supplied with a natural
cover and chrome tappet blocks are fitted with standard tappets
which will accept a hydraulic tappet unit or solid conversion kit
not included.
VT No. Fits
Cu In
10-1952* 1948‑62 Panhead
74”
10-2121* 1955‑62 Panhead
74”
10-2008 1956‑62 Panhead
74”
10-2009 1966‑69 Shovelhead 74”
10-1992 1963‑64 Panhead
80”
10-1991 1965 Panhead
74”
10-1990 1965 Panhead
80”
*Note: Assembled with V‑Twin replica crankcases.
10-2008
V-Twin
TM
80”Short Blocks are shipped fully assembled as
shown. All 80” units feature an S&S Crankcase, Sifton Oil
Pump/Breather assembly, stock stroke flywheel, Timken
Bearings, stock cam properly installed with a matched pinion
and cam gear with Torrington bearing. Assembly is supplied
with a chrome nose cone cover and chrome lifter blocks are fit‑
ted with standard tappets. Blocks fit 1973‑84 Shovelheads.
VT No. 10-0006
10-0006