Motorcycle Engine
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
#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
$27.43
Kibblewhite Precision Machining
Valve Guide Intake Exhaust Standard Size Manganese Bronze Triumph 650
3
$19.44
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
Colony
#9723-22 Upper and Lower Motor Mount Kit 1937-1947 Harley-Davidson Big Twin Side Valve - Parkerized
$43.82
Colony
#8931-16-P Rocker Cover Smooth Allen Kit 1985-Up Harley-Davidson FL/FX 1986-Up XL - Chrome Plated
$23.01
Colony
#9751-11-P Cam Cover Smooth Allen Screw Kit 1986-Up Harley-Davidson Sportster - Chrome Plated
$21.66
Colony
#1021-P Complete Show Bike Kit Smooth Allen Hardware 2002-Up Harley-Davidson VRSCA - Chrome Plated
1
$173.38
Colony
#1021 Complete Show Bike Kit Knurled Allen Hardware 2002-Up Harley-Davidson VRSCA - Chrome Plated
$112.28
Colony
#8515 Complete Show Bike Kit Cap Style Hardware 1976-1977 Harley-Davidson Shovelhead - Chrome Plated
$383.08
Colony
#7910 Complete Show Bike Kit Acorn Hardware 1970-1975 Harley-Davidson Shovelhead - Chrome Plated
$383.08
Colony
#7908 Complete Show Bike Kit Acorn Hardware 1958-1965 Harley-Davidson Panhead - Chrome Plated
$383.08
Colony
#7903 Complete Show Bike Kit Acorn Hardware 1974-1976 Harley-Davidson Sportster - Chrome Plated
2
$339.27
Colony
#7902 Complete Show Bike Kit Acorn Hardware 1971-1973 Harley-Davidson Sportster - Chrome Plated
$339.27
Colony
#1024-P Complete Show Bike Kit Smooth Allen Hardware 2007-2008 Harley-Davidson FLT - Chrome Plated
$265.65
Colony
#1026-P Complete Show Bike Kit Smooth Allen Hardware 2009-Up Harley-Davidson FLT - Chrome Plated
$245.03
Colony
#9819-12-P Timing Cover Smooth Allen Bolt Kit 1993-Up Harley-Davidson Big Twin - Chrome Plated
$14.89
Colony
#8786-5-P Sprocket Cover Smooth Allen Screw Kit 1977-1985 Harley-Davidson Sportster - Chrome Plated
$11.90
Colony
#2222-11-P Cam Cover Smooth Allen Screw Kit 2004-Up Harley-Davidson Sportster - Chrome Plated
$23.01
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.