Motorcycle Engine
British Standard
Triumph 650 to 750 c.c Big Bore Kit for 1963-1972 Models
22
$999.95
Lowbrow Customs
FiltroMax Universal Remote Oil Filter Mount - Polished
50
$70.35
Old-Stf Cycle
Shovelhead Rocker Box Split Oil Lines - Brass
29
$91.43
Gasbox
Strong Arm Top Motor Mount for Crank Start Key Switch - 1984-1999 Harley-Davidson Big Twin Evolution
1
$74.95
Gates Corporation
3/8 inch Black Fuel / Oil Line - By The Foot
15
From
$13.41
Lowbrow Customs
FiltroMax Universal Remote Oil Filter Mount - Black
26
$70.35
Colony
#3020-8 Head Bolt Set 12 Point 1992-Up Harley-Davidson Big Twin/Twin Cam 1993-Up XL - Zinc Plated
3
$83.00
James Gaskets
Complete Motor Gasket Kit - Sportster 1000cc 1972 - 1985
9
$114.43
Colony
#7911 Complete Show Bike Kit Acorn Hardware 1978-1984 Harley-Davidson Shovelhead - Chrome Plated
2
$400.47
S&S Cycle
Quickee Adjustable Pushrod Set - 1991-2022 Harley-Davidson XL 1999-2017 Twin Cam 2017-2023 M8
$188.96
$209.95
James Gaskets
Top End Gasket Kit 1966-1984 Harley-Davidson Shovelhead
$71.99
Gasbox
Top Motor Mount - 1986-2003 Sportster - Stainless Steel - With Coil and Stock Ignition Switch Mounts
8
$49.95
Til Death Cycles
Dyna Case Saver
2
$119.12
Cycle Standard
Mega Nut Sprocket and Pulley Lock Nut for 1993+ Harley Sportster, Big Twin, and Twin Cam
19
$68.84
Colony
#2140-40 Early Style Pushrod Cover Adaptor Kit 1990-2003 Harley-Davidson Sportster - Chrome Plated
1
$155.00
James Gaskets
Complete Motor Gasket Kit - Shovelhead 1966 - 1984
8
$116.17
Colony
#1010 Complete Show Bike Kit Allen Hardware 1978-1984 Harley-Davidson Shovelhead - Chrome Plated
2
$150.65
Lowbrow Customs
FiltroMax Belt Drive Mounting Bracket
11
$23.77
Cycle Standard
Rocker Box Covers - Chrome - 1948-65 Harley-Davidson Panhead
2
$140.39
Cycle Standard
Ride-On Engine Stablizer Link Kit 1982-94 Harley-Davidson FXR 91-94 Dyna 80-08 Touring
$101.87
Colony
#8164-19 Upper And Lower Motor Mount Kit 1936-1969 Harley-Davidson Big Twin OHV - Chrome Plated
5
$57.53
Gates Corporation
5/16 inch Black Fuel / Oil Line - By The Foot
11
From
$10.16
Cycle Standard
Engine Stabilizer Link - Chrome - 1982-94 Harley-Davidson FXR 91-94 Dyna 80-08 Touring
2
$76.71
Colony
#8515 Complete Show Bike Kit Cap Style Hardware 1976-1977 Harley-Davidson Shovelhead - Chrome Plated
$383.08
Colony
#1017 Complete Show Bike Kit Allen Hardware 1971-1976 Harley-Davidson Sportster - Chrome Plated
1
$179.07
Gates Corporation
1/4 inch Black Fuel / Oil Line - By The Foot
9
From
$9.63
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...
Read more
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.