Motorcycle Engine
Gates Corporation
1/4 inch Black Fuel / Oil Line - By The Foot
7
From
$8.75
Colony
#8164-19 Upper And Lower Motor Mount Kit 1936-1969 Harley-Davidson Big Twin OHV - Chrome Plated
5
$57.53
Colony
#7137-22 High Crown Acorn Rocker Box Bolt Kit - 1966-1984 Harley-Davidson Shovelhead - Chrome Plated
4
$51.43
Colony
#3020-8 Head Bolt Set 12 Point 1992-Up Harley-Davidson Big Twin/Twin Cam 1993-Up XL - Zinc Plated
2
$77.00
Colony
#2091-12 Replacement Pushrod Covers Late 1979-1984 Harley-Davidson Shovelhead - Chrome Plated
2
$70.39
Colony
#3126-36 Pushrod Cover Kit for Adjustable Pushrods 1999-Up Harley-Davidson Twin Cam - Chrome Plated
$140.00
Cycle Standard
Rocker Box Covers - Chrome - 1948-65 Harley-Davidson Panhead
2
$136.30
Lowbrow Customs
Rocker Box Oil Pressure Gauge Adapter Fitting - Brass - 1971 - Up Harley-Davidson Shovelhead, 1971 - 1985 Sportster
6
$26.42
James Gaskets
Top End Gasket Kit 1973-1985 Harley-Davidson Sportster
2
$42.03
James Gaskets
Primary Cover Gasket 1965-1988 Harley-Davidson Big Twin
$24.91
Kibblewhite Precision Machining
Black Diamond Exhaust Valve Triumph 650 750 OEM # 70-2904
3
$31.01
British Standard
Rocker Cap/Valve Cover Set Triumph 350 500 650 Unit Twins
3
$40.39
Grant Piston Rings
Piston Rings for Triumph 650 c.c. Motorcycles - .060 over
$60.45
Til Death Cycles
Dyna Case Saver
$119.12
Colony
#2011-8 Head Bolt Set 12 Point 1985-1991 Harley-Davidson Big Twin 1986-1992 XL - Chrome Plated
2
$109.99
Colony
#2313-19 Upper and Lower Motor Mount Bolt Kit 1936-1969 Harley-Davidson Big Twin - Parkerized
1
$52.45
Colony
#8204-4 Hydraulic Lifter Converters Eliminate Hydraulic Units 1953-Up Harley-Davidson Big Twins
$34.05
Cycle Standard
Isolator Motor Mount - Rear - 1991-1998 Harley-Davidson Dyna
$101.61
British Standard
Engine Oil Seal Kit - 7 Piece - 1963 - 1972 Triumph Unit 650
21
$50.19
Kibblewhite Precision Machining
Tappet Blocks 1969- 1983 for Triumph 650 / 750 Twins OEM # E9352 E9353
2
$99.99
Cycle Standard
Ride-On Engine Stablizer Link Kit 1982-94 Harley-Davidson FXR 91-94 Dyna 80-08 Touring
$97.02
Colony
#8225-8 Rocker Shaft End Plug & Cap Kit 1971-Up Harley-Davidson Shovelhead 1971-1985 XL - CAD Plated
2
$31.81
British Standard
Metric Timing Side Crankshaft Bearing for 1972-80 Triumph 650 750 Unit Twin Motorcycles OEM # 70-3835
$87.90
Kibblewhite Precision Machining
Intake Valve Standard Triumph 650 / 750 1963-83
1
$21.49
Kibblewhite Precision Machining
Exhaust Valve Standard Triumph 650 / 750 1963-83
5
$21.49
James Gaskets
Top End Gasket Kit 1948-1965 Harley-Davidson Panhead
$40.59
British Standard
Triumph Patent Plate with Rivets
7
$16.01
Colony
#2233-12 Rocker Arm Shaft Washer O-Ring Kit 1966-1984 Harley-Davidson Shovelhead 1957-1984 XL
21
$6.05
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.