Motorcycle Engine
Grant Piston Rings
Piston Rings for Triumph 650 c.c. Motorcycles - .040 over
$60.45
Colony
#3326-2 Oil Pump Cover to Oil Filter Line Fitting 1950-1957 Harley-Davidson Big Twin - CAD Plated
1
$7.26
Kibblewhite Precision Machining
Tappet Blocks 1969- 1983 for Triumph 650 / 750 Twins OEM # E9352 E9353
2
$99.99
Kibblewhite Precision Machining
Outer Camshaft Bushing for Triumph 500 / 650 / 750 Twins OEM # E10286
1
$17.77
Kibblewhite Precision Machining
Intake and Exhaust Valve Spring Set for 1963 - 1972 Triumph 650 Motorcycles OEM # 99-7037 70-4221 or 70-7400
1
$54.24
Colony
#3126-36 Pushrod Cover Kit for Adjustable Pushrods 1999-Up Harley-Davidson Twin Cam - Chrome Plated
$140.00
Colony
#8511 Complete Show Bike Kit Cap Style Hardware 1978-1984 Harley-Davidson Shovelhead - Chrome Plated
1
$400.47
Colony
#7915 Complete Show Bike Kit Acorn Hardware 1976-1977 Harley-Davidson Shovelhead - Chrome Plated
2
$383.08
Colony
#7907 Complete Show Bike Kit Acorn Hardware 1948-1957 Harley-Davidson Panhead - Chrome Plated
$383.08
Colony
#3036-22 Upper and Lower Motor Mount Kit 1937-1947 Harley-Davidson Big Twin Side Valve - Parkerized
1
$43.82
Colony
#1017 Complete Show Bike Kit Allen Hardware 1971-1976 Harley-Davidson Sportster - Chrome Plated
1
$179.07
Colony
#1010 Complete Show Bike Kit Allen Hardware 1978-1984 Harley-Davidson Shovelhead - Chrome Plated
2
$150.65
British Standard
Triumph Cylinder Base Nut Set Unit and Pre-Unit 650cc 1946-1968 OEM # P0172A 37-0076
5
$22.67
Kibblewhite Precision Machining
Valve Guide Intake Exhaust Standard Size Manganese Bronze Triumph 650
3
$19.44
Colony
#9723-22 Upper and Lower Motor Mount Kit 1937-1947 Harley-Davidson Big Twin Side Valve - Parkerized
$43.82
Colony
#9751-11-P Cam Cover Smooth Allen Screw Kit 1986-Up Harley-Davidson Sportster - Chrome Plated
$21.66
Colony
#8783-8-P Cam Cover Smooth Allen Screw Kit 1971-1985 Harley-Davidson Sportster - Chrome Plated
1
$18.62
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.