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799
CLASSIC
Side Valve Piston Kits
V-Twin Piston Kits include 2 Cast Alloy Pistons, Ring Set, 
2 Wrist Pins and 4 Circlips. All Flathead Pistons have a steel 
expansion control strut cast as original. All 74/80” Flat Heads 
have steel expansion strut as original.
Flathead Piston Kits.
Flathead
45” SV
³⁄₃₂
” Top 
74” SV
3⁵⁄₁₆” Bore
80” SV
3⁷⁄₁₆” Bore
Size
STD
11-0400
11-0415
11-0408
.010
11-0401
11-0416
11-0409
.020
11-0402
11-0417
11-0410
.030
11-0418
11-0411
.040
11-0404
11-0419
11-0412
.050
11-0405
11-0420
11-0413
.060
11-0406
11-0421
11-0414
.070
11-0422
11-0424
.080
11-0423
11-0425
One Piece Cast Iron Ring Sets for 2 pis-
tons with one piece oil ring.
Model
Comp 
Ring
Oil Ring
45 SV
2.745” 
¹⁄₁₆
” 
³⁄₁₆
74” SV
3⁵⁄₁₆
³⁄₃₂
³⁄₁₆
80” SV
3⁷⁄₁₆”
¹⁄₁₆
⁵⁄₃₂
Standard
     —
11-2537 11-2545
.010
11-2561 11-2538 11-2546
.020
11-2562 11-2539 11-2547
.030
     —
11-2540
    —
.040
11-2564 11-2541
    —
.050
11-2565 11-2542
    —
.060
11-2566 11-2543 11-2551
.070
11-2567 11-2544 11-2552
.080
     —
11-2553 11-2554
Replica 45 Cylinder Sets include front and rear cylinders. 
49-0378 WL includes pistons and rings.
VT No.   Fits  
Item
49-0193 W 
Front
49-0804  
Rear
49-0378  Set 
1929-52 WL
11-0637  Set 
Piston Set
49-1850   
Top End Assy
11-0379   
OE Piston Kit
A
B
Cylinder Base Nuts include washers.
Chrome  Cadmium Parkerized  Fits
7017-16  
 
 1936-78 Big Twin, Acorn (A)
8104-16  8105-16  9623-16  1936-78 Big Twin (B)
8106-16  8107-16  9624-16  45’s (B)
9715-8  8171-8 
9716-8  
⁷⁄₁₆
” Lockwashers (B), 8 pack
49-7606
11-2561
Cylinder Base Studs feature heat treating and interfer-
ence thread at cylinder base. Sets of eight.
VT No.  OEM 
Year 
Fits
8856-8  16831-30  1930-77   74” and 80”
12-2100 16831-30  1930-77   74” and 80”
12-1192 16830-29  1929-73   45”
12-0910
12-0911
11-0404
Set  Kit  
Size Type
49-0685  49-1385 
74” Iron
11-1757  11-1305 
74”
 
Aluminum
49-0686  49-1386 
80” Iron
Wrist Pin and Lock Kits.
VT No.  OEM 
Year/Model
49-7606  22775-36 
1936-48 Big Twin SV
49-7608  .002 Oversize  1932-51 45 SV
11-0869  22719-52 
1952-73 45 SV
45” Top End Kit 
includes 45 valve cover 
kit, 45 lifter kit, valve 
spring kit, front & rear 
45 cylinder, 2 Sifton 
intake valves, 2 Sifton 
exhaust valves, high 
compression head, 
gasket kit, headbolt kit, 
and washer kit.
VT No. 49-0865
45” Hastings Ring Sets.
Model
45” & 55”
1952-73 G & K
2³⁄₄”
¹⁄₁₆
³⁄₁₆
45”
1937-52 G & W
2³⁄₄”
³⁄₃₂
¹⁄₈
Comp Ring
Oil Ring
Mfg.#
4244
5044*
Standard
11-0144
11-2529
.010
11-0145
11-2530
.020
11-0146
11-2531
.030
11-0147
11-2532
.040
11-0148
11-2533
.050
11-2534
.060
11-0150
.070
11-0151
11-2536
*Note: Features One Piece Oil Control Ring
49-0193
49-0686
49-0685
11-1757
45” Engine Plaque
VT No. 48-1824
Big Twin Side Valve Cylinder 
Sets are available to fit both 
74” and 80” side valve motors. 
Sold in sets only. These cast 
iron cylinders are ready to be 
fitted with pistons. Thirteen fin 
style cylinders that have valve 
guides and intake manifold 
nipples installed. Kit includes 
standard piston kit pre-fitted to 
cylinder bore size.
Ring Sets
Wrist Pin Locks, 10 packs.
12-0910  22581-32 
1932-53 All Twins
12-0911  22582-52 
1952-77 All Twins
49-0804
49-0378