Motorcycle Engine
Lowbrow Customs
FiltroMax Universal Remote Oil Filter Mount - Polished
47
$70.35
Old-Stf Cycle
Shovelhead Rocker Box Split Oil Lines - Stainless Steel
13
$114.29
James Gaskets
Complete Motor Gasket Kit - Shovelhead 1966 - 1984
8
$116.17
Old-Stf Cycle
Shovelhead Rocker Box Split Oil Lines - Brass
29
$91.43
British Standard
Triumph 650 to 750 c.c Big Bore Kit for 1963-1972 Models
21
$999.95
Lowbrow Customs
FiltroMax Universal Remote Oil Filter Mount - Black
25
$70.35
James Gaskets
Complete Motor Gasket Kit - Sportster 1000cc 1972 - 1985
8
$114.43
Gasbox
Top Motor Mount - 1986-2003 Sportster - Stainless Steel - With Coil and Stock Ignition Switch Mounts
6
$49.95
James Gaskets
Top End Gasket Kit 1966-1984 Harley-Davidson Shovelhead
$71.99
Cycle Standard
Mega Nut Sprocket and Pulley Lock Nut for 1993+ Harley Sportster, Big Twin, and Twin Cam
17
$68.84
Lowbrow Customs
FiltroMax Belt Drive Mounting Bracket
11
$23.77
James Gaskets
Primary Cover & Inspection Cover Gasket Kit 8-Hole Primary Cover 1970-1982 Harley-Davidson Shovelhead
$68.87
Gates Corporation
3/8 inch Black Fuel / Oil Line - By The Foot
14
From
$10.95
Colony
#1004 Complete Show Bike Kit Allen Hardware Harley-Davidson 1992-1999 Softail - Chrome Plated
$211.75
Colony
#7137-22 High Crown Acorn Rocker Box Bolt Kit - 1966-1984 Harley-Davidson Shovelhead - Chrome Plated
4
$51.43
Colony
#2667-22-P Lower Motor Mount Allen Bolt Kit 1999-2003 Harley-Davidson Sportster - Chrome Plated
2
$35.87
Gasbox
Strong Arm Top Motor Mount for Crank Start Key Switch - 1984-1999 Harley-Davidson Big Twin Evolution
$74.95
Colony
#7903 Complete Show Bike Kit Acorn Hardware 1974-1976 Harley-Davidson Sportster - Chrome Plated
2
$339.27
Cycle Standard
Rocker Box Covers - Chrome - 1948-65 Harley-Davidson Panhead
2
$140.39
Til Death Cycles
Dyna Case Saver
$119.12
Colony
#8164-19 Upper And Lower Motor Mount Kit 1936-1969 Harley-Davidson Big Twin OHV - Chrome Plated
5
$57.53
James Gaskets
Complete Motor Gasket Kit - Sportster 900cc 1957 - 1971
1
$114.43
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.