Motorcycle Engine
British Standard
Side Cover Allen Hardware Set - Stainless- Triumph 650 c.c. Motorcycles 1963 - 1968
12
$48.92
British Standard
Triumph Oil Seal Timing Cover Points Seal OEM #70-4568
12
$16.02
Colony
#3447-7 Oversized Cylinder Head Stud Kit 1926-1932 Harley-Davidson A & B Singles - Parkerized
$46.20
Old-Stf Cycle
Shovelhead Rocker Box Split Oil Lines - Brass
30
$91.43
Kibblewhite Precision Machining
Chrome Moly Pushrods for 650cc Triumph Twins Race or Street Use
11
$80.30
Lowbrow Customs
FiltroMax Big Twin Bracket - Black
3
$39.45
British Standard
Engine and Transmission Lock Tab Set - 1963 - 1972 Triumph 650 with 4 Speed Gearbox
14
$25.25
Lowbrow Customs
Rear Motor Mount Plates for Triumph Motorcycles - Chopper Style - 1963 - 1970 Triumph
13
$74.20
James Gaskets
Primary Cover Gasket 1967-1976 Harley-Davidson XL
3
$6.73
James Gaskets
Primary Cover Gasket 1977-1990 Harley-Davidson XL
$12.18
Colony
#9772-22-P Lower Motor Mount Smooth Allen Kit 1986-1998 Harley-Davidson Sportster - Chrome Plated
1
$35.87
Kibblewhite Precision Machining
Outer Camshaft Bushing for Triumph 500 / 650 / 750 Twins OEM #E10286
1
$17.77
Colony
#2280-16 Rocker Cover 12 Point Screw Kit 1985-Up Harley-Davidson FL/FX 1986-Up XL - Chrome Plated
$23.01
Colony
#8204-4 Hydraulic Lifter Converters Eliminate Hydraulic Units 1953-Up Harley-Davidson Big Twins
$34.05
Kibblewhite Precision Machining
Black Diamond Exhaust Valve Triumph 650 750 OEM #70-2904
3
$31.01
Kibblewhite Precision Machining
Black Diamond Intake Inlet Valve Triumph 650 750 OEM #70-4603
3
$31.01
Colony
#8164-19 Upper And Lower Motor Mount Kit 1936-1969 Harley-Davidson Big Twin OHV - Chrome Plated
5
$57.53
James Gaskets
Primary Cover & Inspection Cover Gasket Kit 1984-1986 Harley-Davidson FL/FLH/FX/FXE/FXWG 1984-1988 Softail
$55.23
British Standard
Outer Gearbox Gasket for unit 650cc and 750cc Triumph Motorcycles 1963- Up OEM #71-1448
13
$10.62
Cometic Gasket Inc.
Cam Change Gasket Kit - 1970-92 Harley-Davidson Big Twin
$26.20
Colony
#9523-1 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twin 1937-Up UL/45s - Chrome Plated
2
$12.74
Colony
#9927-28 Upper & Lower Motor Mounting Allen Kit 1984-1999 Harley-Davidson Softail - Chrome Plated
$49.25
The Heart of Your Build: Custom Motorcycle Engine Parts
The engine is the soul of your motorcycle, and keeping it running strong is what it's all about. Whether you're rebuilding a classic ironhead motor for sale you just scored or boosting the pe...
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Motorcycle Engine FAQ
I found a Sportster engine for sale. What are the first things I should check or replace?
When starting with a used engine of unknown history, it's wise to at least perform a top-end refresh. This typically includes new gaskets, checking cylinder and piston tolerances, and inspecting the valve train. This gives you peace of mind and a reliable starting point.
What are the easiest ways to get more power from my stock Sportster engine?
The most common and effective "Stage 1" upgrades are improving airflow. This means installing a high-flow air cleaner and a less restrictive exhaust system. These two changes allow the engine to breathe more freely and will deliver a noticeable performance gain without ever opening up the motor itself.
I'm rebuilding my engine. How important is it to replace all the hardware?
While not always strictly necessary, it's highly recommended. Engine hardware is subject to countless heat cycles and stress, which can cause it to stretch and weaken over time. Using new, high-quality head bolts, case bolts, and other hardware ensures proper torque specs and a leak-free, reliable engine for years to come.