Description
A valvetrain is the mechanical system that controls and regulates the operation of the valves in an internal combustion engine.
Layouts
A typical overhead valve engine valvetrain is made up of valves, rocker arms, pushrods, lifters, and camshafts. There are several different configurations for valvetrains, their differences lying in the location of the camshaft within the engine.
Cam-in-block
The camshaft is located within the engine block, and operates directly on the valves, or indirectly via rocker arms and pushrods. These are sometimes called pushrod engines because of their reliance on pushrods.
Overhead camshaft
The camshaft is located above the valves within the cylinder head and operates directly or indirectly upon the valves. The Rolls Royce Merlin, used on the British Spitfire and P-51 Mustang during World War 2, is an example of an overhead camshaft engine.
Camless
In a camless layout, the engine has no camshafts. Instead, the valves are individually actuated by technologies like solenoids, hydraulics, or pneumatics. However, camless engines are not yet available in mass production, as they have a variety of technical issues including weight, cost, and high noise.
At Aerospace Aces, owned and operated by ASAP Semiconductor, we sell engine valvetrain parts and systems from some of the top manufacturers around the world, including Lycoming, Superior Air Parts, and Continental Motors Inc.
Part No | Manufacturer | Description | RFQ |
---|---|---|---|
16R21710-P20 | Lycoming | Guide - Valve - Exhaust (NI-Resist) | RFQ |
17B23936 | Lycoming | Valve - Exhaust | RFQ |
61681-P05 | Lycoming | Guide - Intake, Plus .005 - 61681-P05 | RFQ |
61681-P10 | Lycoming | Guide - Intake, Plus .010 - 61681-P10 | RFQ |
62388 | Lycoming | Cap -Valve Stem | RFQ |
631814 | Continental Motors Inc | Cover - Valve Rocker | RFQ |
636242 | Continental Motors Inc | Guide - Exhaust | RFQ |
636242P010 | Continental Motors Inc | Guide - Exhaust | RFQ |
636242P015 | Continental Motors Inc | Guide - Exhaust | RFQ |
636242P020 | Continental Motors Inc | Guide - Exhaust - 636242P020 | RFQ |
636242P030 | Continental Motors Inc | Guide - Exhaust | RFQ |
643766P030 | Continental Motors Inc | Guide - Intake, Plus .030 | RFQ |
643767P010 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
643767P020 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
654442 | Continental Motors Inc | Spring Valve - Inner | RFQ |
655525P005 | Continental Motors Inc | Guide - Intake Valve - 655525P005 | RFQ |
655525P010 | Continental Motors Inc | Guide - Intake Valve | RFQ |
655526P005 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
655526P010 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
655527P010 | Continental Motors Inc | Guide - Intake Valve | RFQ |
655783 | Continental Motors Inc | Valve - Intake | RFQ |
658259 | Continental Motors Inc | Continental Valve Cover - 658259 | RFQ |
66531 | Lycoming | Exhaust Valve | RFQ |
72710 | Lycoming | Cover - Valve Rocker Shaft | RFQ |
75838-P05 | Lycoming | Guide - Valve - Exhaust | RFQ |
75838-P10 | Lycoming | Guide - Valve - Exhaust | RFQ |
75838-P20 | Lycoming | Guide - Valve - Exhaust | RFQ |
AEC24047 | Engine Components International | Guide - Exhaust | RFQ |
AEC24047P010 | Engine Components International | Guide - Exhaust, Plus .010 | RFQ |
AEC24047P020 | Engine Components International | Guide - Exhaust, Plus .020 | RFQ |
AEC539988 | Engine Components International | Valve - Intake | RFQ |
AEC636242HCP005 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
AEC636242HCP010 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
AEC636242HCP020 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
AEC636242HCP030 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
AEC636242P005 | Engine Components International | Guide - Exhaust - High Chrome, Plus .005 | RFQ |
AEC643766 | Engine Components International | Guide - Intake | RFQ |
AEC643766P030 | Engine Components International | Guide - Intake, Plus .030 | RFQ |
AEC643767HC | Engine Components International | Guide -á Exhaust High Chrome | RFQ |
AEC643767HCP005 | Engine Components International | Guide - Exhaust Valve, High Chrome | RFQ |
AEC643767HCP010 | Engine Components International | Guide - Exhaust High Chrome | RFQ |
AEC643767HCP030 | Engine Components International | Guide - Exhaust Valve | RFQ |
AEC643767P05 | Engine Components International | Guide - Exhaust, Plus .005 | RFQ |
AEL11485 | Engine Components International | Shroud - Pushrod | RFQ |
AEL11626HCP020 | Engine Components International | Guide - Exhaust - High Chrome, Plus .020 | RFQ |
AEL11626HCP030 | Engine Components International | Guide - Exhaust - High Chrome, Plus .030 For 7/16" valves -áAEL11626HCP030 | RFQ |
AEL11626P010 | Engine Components International | Guide - Exhaust - AEL11626P010 | RFQ |
AEL11795 | Engine Components International | Spring Valve | RFQ |
AEL11796 | Engine Components International | Spring Valve - Outer | RFQ |
AEL11797 | Engine Components International | Spring Valve - Inner | RFQ |
AEL11800 | Engine Components International | Spring Valve - Outer | RFQ |
AEL13622 | Engine Components International | Valve | RFQ |
AEL16740 | Engine Components International | Valve - Exhaust - (Rotor Type) | RFQ |
AEL19034 | Engine Components International | Valve, Exhaust | RFQ |
AEL61681P005 | Engine Components International | Guide - Intake, Plus .005 - AEL61681P005 | RFQ |
AEL61681P010 | Engine Components International | Guide - Intake, Plus .010 - AEL61681P010 | RFQ |
LW-11795 | Lycoming | Spring Valve | RFQ |
LW-11796 | Lycoming | Spring Valve - Outer | RFQ |
LW-11797 | Lycoming | Spring Valve - Inner | RFQ |
LW-11800 | Lycoming | Spring Valve - Outer | RFQ |
LW-16740 | Lycoming | Valve - Exhaust - (Rotor Type) | RFQ |
SA10205-1 P05 | Superior Air Parts | Guide - SA10205-1 P10 | RFQ |
SA10205-1 P10 | Superior Air Parts | Guide - SA10205-1 P10 | RFQ |
SA10205-1 P20 | Superior Air Parts | Guide - SA10205-1 P20 | RFQ |
SA10205-1 P30 | Superior Air Parts | Guide - SA10205-1 P30 | RFQ |
SA539988 | Superior Air Parts | Valve - Intake | RFQ |
SA629117-1 | Superior Air Parts | Exhaust Valve Rotocoils | RFQ |
SA639282 | Superior Air Parts | Guide - Exhaust | RFQ |
SA639282 P05 | Superior Air Parts | Guide - Exhaust | RFQ |
SA639282 P10 | Superior Air Parts | Guide - Exhaust | RFQ |
SA639282 P20 | Superior Air Parts | Guide - Exhaust | RFQ |
SA639282 P30 | Superior Air Parts | Guide - Exhaust | RFQ |
SA643766-1 | Superior Air Parts | Guide - Intake | RFQ |
SA643766-1 P10 | Superior Air Parts | Guide | RFQ |
SA643766-1 P30 | Superior Air Parts | Guide - Intake, Plus .030 | RFQ |
SL11626 | Superior Air Parts | Guide - Exhaust - SL11626 | RFQ |
SL11626 P05 | Superior Air Parts | Guide - Exhaust - SL11626 P05 | RFQ |
SL11626 P10 | Superior Air Parts | Guide - Exhaust - SL11626 P10 | RFQ |
SL11626 P20 | Superior Air Parts | Guide - Exhaust - SL11626 P20 | RFQ |
SL11626 P30 | Superior Air Parts | Guide - Exhaust - SL11626 P30 | RFQ |
SL11795 | Superior Air Parts | Spring Valve | RFQ |
SL11796 | Superior Air Parts | Spring Valve - Outer | RFQ |
SL11797 | Superior Air Parts | Spring Valve - Inner | RFQ |
SL11800 | Superior Air Parts | Spring Valve - Outer | RFQ |
SL13622 | Superior Air Parts | Valve | RFQ |
SL19034 | Superior Air Parts | Valve, Exhaust | RFQ |
SL61247 | Superior Air Parts | Cover - Rocker Box | RFQ |
SL62388 | Superior Air Parts | Cap, Valve Stem,Sold Each | RFQ |
SL75838A P10 | Superior Air Parts | Guide - Exhaust | RFQ |
ST-71 | Lycoming | Gauge -Valve Guide | RFQ |
We Hope You'll Choose Us as Your Parts Distributor In the Future. Don’t forget That We offer Competitive Quotes and Same-Day Shipping On Most of Our Inventory.
Request for Quote