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 |
---|---|---|---|
538305P030 | Continental Motors Inc | Rod Assembly Push (REF 652451) | RFQ |
656011P030 | Continental Motors Inc | Guide, Exhaust Valve. Aluminum-Bronze | RFQ |
SA629117-1 | Superior Air Parts | Exhaust Valve Rotocoils | RFQ |
SL11626 | Superior Air Parts | Guide - Exhaust - SL11626 | RFQ |
AEC636242HCP010 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
16R21710-P20 | Lycoming | Guide - Valve - Exhaust (NI-Resist) | RFQ |
SL11626 P20 | Superior Air Parts | Guide - Exhaust - SL11626 P20 | RFQ |
ST-71 | Lycoming | Gauge -Valve Guide | RFQ |
SA639282 P05 | Superior Air Parts | Guide - Exhaust | RFQ |
SA10205-1 P30 | Superior Air Parts | Guide - SA10205-1 P30 | RFQ |
SL61681A P30 | Superior Air Parts | Guide Intake - SL61681A P30 | RFQ |
SA643766-1 P10 | Superior Air Parts | Guide | RFQ |
15F19957-57 | Lycoming | Push Rod Assembly | RFQ |
SL15F19957-37 | Superior Air Parts | Push Rod (360 engine) | RFQ |
LW-11797 | Lycoming | Spring Valve - Inner | RFQ |
SL72050 | Superior Air Parts | Key - Valve - SL72050 | RFQ |
72710 | Lycoming | Cover - Valve Rocker Shaft | RFQ |
15F19957-56 | Lycoming | Push Rod Assembly | RFQ |
AEL11626HCP030 | Engine Components International | Guide - Exhaust - High Chrome, Plus .030 For 7/16" valves -áAEL11626HCP030 | RFQ |
LW-16740 | Lycoming | Valve - Exhaust - (Rotor Type) | RFQ |
65007 | Lycoming | Retainer-Shroud Tube Seal | RFQ |
SL61681A P10 | Superior Air Parts | Guide Intake, Plus .010 - SL61681A P10 | RFQ |
SL14995 | Superior Air Parts | Retainer | RFQ |
537870P030 | Continental Motors Inc | Push Rod | RFQ |
636242P010 | Continental Motors Inc | Guide - Exhaust | RFQ |
SL60009 | Superior Air Parts | Key - Valve | RFQ |
SA10205-1 P20 | Superior Air Parts | Guide - SA10205-1 P20 | RFQ |
LW-19042-P10 | Lycoming | Seat - Intake Valve | RFQ |
AEC643767HCP010 | Engine Components International | Guide - Exhaust High Chrome | RFQ |
AEC539988 | Engine Components International | Valve - Intake | RFQ |
SL11795 | Superior Air Parts | Spring Valve | RFQ |
17C21191 | Lycoming | Key - Valve - Exhaust- 17C21191 | RFQ |
SA636242 P10 | Superior Air Parts | Guide Exhaust | RFQ |
LW-11795 | Lycoming | Spring Valve | RFQ |
MS35756-8 | Superior Air Parts | Key | RFQ |
AEC643766P030 | Engine Components International | Guide - Intake, Plus .030 | RFQ |
AEL73415 | Engine Components International | Push Rod Assembly | RFQ |
LW-11800 | Lycoming | Spring Valve - Outer | RFQ |
SA636242 P30 | Superior Air Parts | Guide Exhaust | RFQ |
SL15F19957-31 | Superior Air Parts | Push Rod | RFQ |
SA10205-1 P10 | Superior Air Parts | Guide - SA10205-1 P10 | RFQ |
AEL73434 | Engine Components International | Push Rod Assembly AEL73434 - Push Rod | RFQ |
SA539988 | Superior Air Parts | Valve - Intake | RFQ |
AEL11626HCP020 | Engine Components International | Guide - Exhaust - High Chrome, Plus .020 | RFQ |
AEL11796 | Engine Components International | Spring Valve - Outer | RFQ |
35971 | Continental Motors Inc | Retainer - Valve Spring Outer | RFQ |
SL11626 P10 | Superior Air Parts | Guide - Exhaust - SL11626 P10 | RFQ |
SL19034 | Superior Air Parts | Valve, Exhaust | RFQ |
643767P010 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
537870 | Continental Motors Inc | Push Rod | RFQ |
AEL61681P010 | Engine Components International | Guide - Intake, Plus .010 - AEL61681P010 | RFQ |
SL61681A P20 | Superior Air Parts | Guide Intake - SL61681A P20 | RFQ |
SL61681A | Superior Air Parts | Guide Intake - SL61681A | RFQ |
AEL73436 | Engine Components International | Push Rod Assembly | RFQ |
SL15F19957-57 | Superior Air Parts | Push Rod | RFQ |
SA21284 P05 | Superior Air Parts | Hosing Push Rod - SA21284 P05 | RFQ |
AEL11485 | Engine Components International | Shroud - Pushrod | RFQ |
AEC24047P020 | Engine Components International | Guide - Exhaust, Plus .020 | RFQ |
SA643766-1 | Superior Air Parts | Guide - Intake | RFQ |
636242P030 | Continental Motors Inc | Guide - Exhaust | RFQ |
AEL72057P020 | Engine Components International | Seat - Intake, Plus .020 | RFQ |
SL15F19957-36 | Superior Air Parts | Push Rod (360 engine) | RFQ |
SL11797 | Superior Air Parts | Spring Valve - Inner | RFQ |
SL75838A P05 | Superior Air Parts | Guide Exhaust NI-RESIST | RFQ |
655166P005 | Lycoming | Guide, Valve | RFQ |
15F19957-47 | Lycoming | Push Rod Assembly | RFQ |
AEL13622 | Engine Components International | Valve | RFQ |
655527P010 | Continental Motors Inc | Guide - Intake Valve | RFQ |
SL15F19957-30 | Superior Air Parts | Push Rod Assy | RFQ |
SA636242 | Superior Air Parts | Guide Exhaust | RFQ |
SL66713A P20 | Superior Air Parts | Guide Intake | RFQ |
61681-P10 | Lycoming | Guide - Intake, Plus .010 - 61681-P10 | RFQ |
SL75838A P30 | Superior Air Parts | Guide Exhaust - Not Pre-Reamed | RFQ |
655525P010 | Continental Motors Inc | Guide - Intake Valve | RFQ |
60009 | Lycoming | Key - Valve - Intake | RFQ |
655783 | Continental Motors Inc | Valve - Intake | RFQ |
SL15F19957-52 | Superior Air Parts | Push Rod | RFQ |
AEC24047 | Engine Components International | Guide - Exhaust | RFQ |
SL66713A P05 | Superior Air Parts | Guide Intake | RFQ |
SA643766-1 P30 | Superior Air Parts | Guide - Intake, Plus .030 | RFQ |
61681-P05 | Lycoming | Guide - Intake, Plus .005 - 61681-P05 | RFQ |
SL12688 P30 | Superior Air Parts | Seat - Valve | RFQ |
75838-P20 | Lycoming | Guide - Valve - Exhaust | RFQ |
SL13622 | Superior Air Parts | Valve | RFQ |
AEL19034 | Engine Components International | Valve, Exhaust | RFQ |
SL61681A P05 | Superior Air Parts | Guide Intake, Plus .005 - SL61681A P05 | RFQ |
655525P005 | Continental Motors Inc | Guide - Intake Valve - 655525P005 | RFQ |
AEL61681P005 | Engine Components International | Guide - Intake, Plus .005 - AEL61681P005 | RFQ |
SL12688 P20 | Superior Air Parts | Seat - Valve | RFQ |
AEC636242HCP030 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
SA2106 P10 | Superior Air Parts | Seat - Valve | RFQ |
SL15F19957-34 | Superior Air Parts | Push Rod (360 engine) | RFQ |
654442 | Continental Motors Inc | Spring Valve - Inner | RFQ |
SL11626 P30 | Superior Air Parts | Guide - Exhaust - SL11626 P30 | RFQ |
SA2106 P20 | Superior Air Parts | Seat - Valve | RFQ |
AEL60009 | Engine Components International | Key - Valve | RFQ |
SL61247 | Superior Air Parts | Cover - Rocker Box | RFQ |
AEC643766P005 | Engine Components International | Guide | RFQ |
AEC643767HC | Engine Components International | Guide -á Exhaust High Chrome | RFQ |
MS35756-3 | Continental Motors Inc | Key | RFQ |
SA24044 | Superior Air Parts | Retainer - Valve Spring | RFQ |
AEL73435 | Engine Components International | Push Rod Assembly | RFQ |
625393 | Continental Motors Inc | Retainer Valve Spring Inner | RFQ |
655526P010 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
AEL65007 | Engine Components International | Retainer - Push Rod Shroud | RFQ |
AEL60337P010 | Engine Components International | Seat - Exhaust, Plus .010 | RFQ |
15F19957-58 | Lycoming | Push Rod Assembly | RFQ |
SL75838A | Superior Air Parts | Guide Exhaust NI-RESIST | RFQ |
SL66713A P10 | Superior Air Parts | Guide Intake | RFQ |
652112 | Continental Motors Inc | Roto Coil Assy | RFQ |
SA2106 | Superior Air Parts | Seat - Valve | RFQ |
SL71894A P20 | Superior Air Parts | Seat - Valve | RFQ |
SL75838A P40 | Superior Air Parts | Guide Exhaust | RFQ |
SL11626 P05 | Superior Air Parts | Guide - Exhaust - SL11626 P05 | RFQ |
AEC643767HCP005 | Engine Components International | Guide - Exhaust Valve, High Chrome | RFQ |
655526P005 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
75838-P10 | Lycoming | Guide - Valve - Exhaust | RFQ |
SL15F19957-58 | Superior Air Parts | Push Rod | RFQ |
AEC643766 | Engine Components International | Guide - Intake | RFQ |
AEC24047P010 | Engine Components International | Guide - Exhaust, Plus .010 | RFQ |
SL73806NS | Superior Air Parts | Rush Rod - SL73806NS | RFQ |
AEC643766P040 | Engine Components International | Guide - Intake, Plus .040 | RFQ |
SL75838A P20 | Superior Air Parts | Guide Exhaust | RFQ |
636242P005 | Continental Motors Inc | Guide, Exhaust | RFQ |
SL62388 | Superior Air Parts | Cap, Valve Stem,Sold Each | RFQ |
SA636242 P05 | Superior Air Parts | Guide Exhaust | RFQ |
SL15F19957-15 | Superior Air Parts | Push Rod | RFQ |
15F19957-48 | Lycoming | Push Rod Assembly | RFQ |
SL15F19957-35 | Superior Air Parts | Push Rod (360 engine) | RFQ |
SL15315 | Superior Air Parts | Push Rod | RFQ |
AEC636242HCP020 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
17F19357 | Lycoming | Rocker Assy-Valve | RFQ |
SA631654 | Superior Air Parts | Roto Coil Assy | RFQ |
AEC652112 | Engine Components International | Roto Coil Assembly - 470/520/550 Series | RFQ |
SA639282 P30 | Superior Air Parts | Guide - Exhaust | RFQ |
62388 | Lycoming | Cap -Valve Stem | RFQ |
SL11800 | Superior Air Parts | Spring Valve - Outer | RFQ |
SL66713A | Superior Air Parts | Guide Intake | RFQ |
643766P030 | Continental Motors Inc | Guide - Intake, Plus .030 | RFQ |
SL73806 | Superior Air Parts | Push Rod | RFQ |
SA643766-1 P20 | Superior Air Parts | Guide | RFQ |
SL66713A P30 | Superior Air Parts | Guide Intake | RFQ |
SL15F19957-56 | Superior Air Parts | Push Rod | RFQ |
SA639282 P20 | Superior Air Parts | Guide - Exhaust | RFQ |
631654 | Continental Motors Inc | Roto Coil Assy | RFQ |
658259 | Continental Motors Inc | Continental Valve Cover - 658259 | RFQ |
AEC643767P05 | Engine Components International | Guide - Exhaust, Plus .005 | RFQ |
636242 | Continental Motors Inc | Guide - Exhaust | RFQ |
SL75838A P10 | Superior Air Parts | Guide - Exhaust | RFQ |
AEL72050 | Engine Components International | Key, Valve Spring Retainer For Lycoming Angle Head Cylinders | RFQ |
15F19957-32 | Lycoming | Push Rod Assy | RFQ |
MS35756-10 | Continental Motors Inc | Key | RFQ |
AEC636242P005 | Engine Components International | Guide - Exhaust - High Chrome, Plus .005 | RFQ |
LW-13322 | Lycoming | Seat - Exhaust Valve Spring Lower | RFQ |
643767P020 | Continental Motors Inc | Guide - Exhaust Valve | RFQ |
SL15F19957-13 | Superior Air Parts | Push Rod (320 engine) | RFQ |
636242P015 | Continental Motors Inc | Guide - Exhaust | RFQ |
AEL11797 | Engine Components International | Spring Valve - Inner | RFQ |
AEL73437 | Engine Components International | Push Rod Assembly | RFQ |
SL12688 P10 | Superior Air Parts | Seat - Valve | RFQ |
SA636242 P20 | Superior Air Parts | Guide Exhaust | RFQ |
SA635959 P05 | Superior Air Parts | Seat - Valve | RFQ |
AEL11626P010 | Engine Components International | Guide - Exhaust - AEL11626P010 | RFQ |
SL11900 P10 | Superior Air Parts | Seat - Valve | RFQ |
AEL13323 | Engine Components International | Retainer - Lower Valve Spring | RFQ |
SL15F19957-14 | Superior Air Parts | Push Rod Assembly | RFQ |
17B23936 | Lycoming | Valve - Exhaust | RFQ |
AEC636242HCP005 | Engine Components International | Guide - Exhaust - High Chrome | RFQ |
72050 | Lycoming | Key - Valve - Intake - 72050 | RFQ |
AEL16740 | Engine Components International | Valve - Exhaust - (Rotor Type) | RFQ |
SA643766-1 P05 | Superior Air Parts | Guide | RFQ |
66531 | Lycoming | Exhaust Valve | RFQ |
SA639282 | Superior Air Parts | Guide - Exhaust | RFQ |
AEC24024 | Engine Components International | Guide - Intake | RFQ |
SA631496 P10 | Superior Air Parts | Guide | RFQ |
SA10205-1 P05 | Superior Air Parts | Guide - SA10205-1 P10 | RFQ |
636242P020 | Continental Motors Inc | Guide - Exhaust - 636242P020 | RFQ |
AEL73414 | Engine Components International | Push Rod Assembly | RFQ |
SL15F19957-12 | Superior Air Parts | Push Rod Assembly | RFQ |
631814 | Continental Motors Inc | Cover - Valve Rocker | RFQ |
LW-11796 | Lycoming | Spring Valve - Outer | RFQ |
SL15F19957-28 | Superior Air Parts | Push Rod | RFQ |
SL71895A | Superior Air Parts | Seat - Valve | RFQ |
SA639282 P10 | Superior Air Parts | Guide - Exhaust | RFQ |
SA630591 P20 | Superior Air Parts | Seat - Valve | RFQ |
LW-15315 | Lycoming | Rod Assembly-Push | RFQ |
75838-P05 | Lycoming | Guide - Valve - Exhaust | RFQ |
SA536410 | Superior Air Parts | Seal - Housing Push-Rod | RFQ |
537296 | Continental Motors Inc | Push Rod Housing | RFQ |
SL16699 P05 | Superior Air Parts | Seat - Valve | RFQ |
AEL72058P010 | Engine Components International | Seat - Exhaust, Plus .010 | RFQ |
SL11796 | Superior Air Parts | Spring Valve - Outer | RFQ |
AEC643767HCP030 | Engine Components International | Guide - Exhaust Valve | RFQ |
SL71894A | Superior Air Parts | Seat - Valve | RFQ |
15F19957-55 | Lycoming | Push Rod Assembly | RFQ |
AEL11800 | Engine Components International | Spring Valve - Outer | RFQ |
AEL11795 | Engine Components International | Spring Valve | RFQ |
AEL72058P020 | Engine Components International | Seat - Exhaust, Plus .020 | RFQ |
SA21284 | Superior Air Parts | Hosing Push Rod - SA21284 | RFQ |
MS35756-6 | Superior Air Parts | Key | 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.
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