Motorcycle Engine
Lowbrow Customs
FiltroMax Big Twin Bracket - Polished
10
$27.79
Old-Stf Cycle
Ironhead Sportster Rocker Box Loop Oil Lines - Brass
13
$64.00
Colony
#7629-14 High Crown Acorn Rocker Box Bolt Kit 1977-1985 Harley-Davidson Sportster - Chrome Plated
$62.27
Gates Corporation
1/4 inch Black Fuel / Oil Line - By The Foot
7
From
$8.75
Kibblewhite Precision Machining
Black Diamond Exhaust Valve Triumph 650 750 OEM # 70-2904
3
$31.01
Lowbrow Customs
Rocker Box Oil Pressure Gauge Adapter Fitting - Brass - 1971 - Up Harley-Davidson Shovelhead, 1971 - 1985 Sportster
6
$26.42
Kibblewhite Precision Machining
Exhaust Valve Standard Triumph 650 / 750 1963-83
5
$21.49
Colony
#9772-22 Lower Motor Mount Allen Screw Kit 1986-1998 Harley-Davidson Sportster - Chrome Plated
1
$33.84
British Standard
Triumph Crankshaft Main Bearing- Right Side- OEM part# 70-1591
3
$84.22
Lowbrow Customs
Rocker Box Oil Pressure Gauge Adapter Fitting - Chrome - 1971 - Up Harley-Davidson Shovelhead, 1971 - 1985 Sportster
9
$26.42
Colony
#2313-19 Upper and Lower Motor Mount Bolt Kit 1936-1969 Harley-Davidson Big Twin - Parkerized
1
$52.45
Cycle Standard
Ride-On Engine Stablizer Link Kit 1982-94 Harley-Davidson FXR 91-94 Dyna 80-08 Touring
$97.02
Lowbrow Customs
FiltroMax Belt Drive Mounting Bracket
11
$21.61
Cycle Standard
Rocker Box Covers - Chrome - 1948-65 Harley-Davidson Panhead
2
$136.30
Lowbrow Customs
FiltroMax Universal Remote Oil Filter Mount - Black
25
$67.00
Lowbrow Customs
Triumph Oil Feed Brass Rocker Box Acorn Nuts and Copper Washers
18
$28.93
SRM Engineering
SRM Oil Pressure Release Valve for pre unit Triumphs
5
$120.99
Grant Piston Rings
Piston Rings for Triumph 650 c.c. Motorcycles - .060 over
$60.45
Grant Piston Rings
Piston Rings for Triumph 650 c.c. Motorcycles - .020 over
$60.45
James Gaskets
Top End Gasket Kit 2007-Up Harley-Davidson Sportster
$119.93
Kibblewhite Precision Machining
Black Diamond Intake Inlet Valve Triumph 650 750 OEM # 70-4603
3
$31.01
Cycle Standard
Engine Stabilizer Link - Chrome - 1982-94 Harley-Davidson FXR 91-94 Dyna 80-08 Touring
1
$73.06
Colony
#2011-8 Head Bolt Set 12 Point 1985-1991 Harley-Davidson Big Twin 1986-1992 XL - Chrome Plated
2
$109.99
British Standard
Pushrod Tube Seal Kit - Triumph 650
18
$26.46
Cycle Standard
Isolator Motor Mount - Rear - 1991-1998 Harley-Davidson Dyna
$101.61
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.