Motorcycle Engine
Colony
#2948-3 Circuit Breaker Mounting Clamp & Stud Kit 1966-1969 Harley-Davidson FL/FLH - CAD Plated
1
$15.73
Colony
#3171-12 Rubber Pushrod Cover Seals 1936-1947 Harley-Davidson Knucklehead 1957-1979 Sportster
4
$7.45
British Standard
Sludge Tube for your 650cc 750cc Triumph Motorcycle OEM #70-3903
6
$31.79
Lowbrow Customs
Rocker Box Oil Pressure Gauge Adapter Fitting - Chrome - 1966 - 1970 Harley-Davidson Shovelhead, 1957 - 1970 Sportster
2
$30.51
Colony
#8729-12 Rubberized Cork Pushrod Cover Seals 1957-1979 Harley-Davidson XL 1936-1947 Knucklehead
1
$9.08
Colony
#7417-13 Oil Pump Acorn Nut Screw & Washer Kit 1968-1977 Harley-Davidson Big Twins - Chrome Plated
1
$25.71
British Standard
OIF Sump Gasket Triumph T140 750 A65 TR6 TR7
2
$7.00
Colony
#8860-8 Cylinder Base Stud Spacer 1978-1984 Harley-Davidson Shovelhead OEM #16836-78 - Chrome Plated
1
$24.98
Colony
#7402-7 Acorn Head Timing Cover Screw Kit 1970-1992 Harley-Davidson Big Twins - Chrome Plated
$24.26
Colony
#2632-3 Circuit Breaker Adjusting Screw Kit 1947-1964 Harley-Davidson Big Twins/45's - CAD Plated
$12.10
British Standard
Points Cover Gasket Triumph Twins and Singles
9
$6.41
Colony
#2280-16 Rocker Cover 12 Point Screw Kit 1985-Up Harley-Davidson FL/FX 1986-Up XL - Chrome Plated
$23.01
Colony
#9100-8 Cylinder Base Nut Set 1978-1984 Harley-Davidson Shovelhead OEM #16838-78 - Chrome Plated
2
$22.75
British Standard
Rocker Cover Washers - 4 Pack - Triumph Unit 500 650
5
$8.31
Colony
#8438-16 Cylinder Base High Crown Cap Nut Set 1957-1985 Sportster 1969-Up Triumph - Chrome Plated
$21.60
Colony
#7604-7 Upper Motor Mount Kit Acorns Nut 1936-1984 Harley-Davidson OHV Big Twins - Chrome Plated
4
$21.52
Colony
#9102-8 Cylinder Base Nut Set 1978-1984 Harley-Davidson Shovelhead OEM #16838-78 - Black Oxide
2
$20.35
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.