Motorcycle Engine
Colony
#2231-4 Tappet Anti-Rotation Allen Screw Kit 2000-Up Harley-Davidson Sportster - Chrome Plated
5
$20.31
Colony
#2369-8 Cylinder Head Motor Brace Mounting Kit 1948-1965 Harley-Davidson Panhead - CAD Plated
6
$19.48
British Standard
Timing Cover Gasket for unit Triumph Motorcycles OEM #71-7263
8
$9.67
British Standard
Ignition Pillar Bolt - Triumph / BSA
7
$8.36
Colony
#8103-16 Lifter Base Screw Kit 1936-1953 Harley-Davidson Big Twin & 1937-1973 45's - CAD Plated
$16.35
Colony
#8700-2 Oil Pump Relief Valve Plug 1968-1980 Harley-Davidson Big Twins OEM #26377-68 - Chrome Plated
$15.52
British Standard
Rocker Cover Washers - 4 Pack - Triumph Unit 500 650
5
$7.55
Colony
#3171-12 Rubber Pushrod Cover Seals 1936-1947 Harley-Davidson Knucklehead 1957-1979 Sportster
3
$7.45
Colony
#2745-2 Oversized Ignition Timer Cover Stud Kit 1972-1979 Harley-Davidson Big Twin - Zinc Plated
$13.92
Colony
#8702-2 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twins OEM #26362-36 - Chrome Plated
1
$12.34
Colony
#8786-5-P Sprocket Cover Smooth Allen Screw Kit 1977-1985 Harley-Davidson Sportster - Chrome Plated
$11.90
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.