cylinder heads
Combustion chamber covers
Cylinder heads are the detachable covers that seal the top of an engine's cylinders, housing the valves, spark plugs, and combustion chambers.
In automotive contexts, upgrading cylinder heads improves airflow and engine performance: He swapped the stock heads for aluminum racing cylinder heads.
A blown head gasket—the seal between head and engine block—causes overheating and costly repairs.
Flow-controlling mechanisms
- camshaftLobed rod operating valves
- spark plugsDevices creating engine combustion
- gasketMechanical leak preventer
- rocker armPivoting engine lever
lifter · pushrod · retainer · combustion chamber · water jacket
Shaping through liquid form
- machiningSubtractive metalworking process
- aluminumElement thirteen
- ironElement twenty-six
- bolt patternArrangement of mounting holes
porting · polishing · flatness · compression ratio · metallurgy · heat treatment
Rate of mechanical work
- torqueRotational force measurement
- airflowMovement of atmosphere
- portingAdapting for compatibility
- polishingSmoothing by friction
racing · aftermarket · blueprinting · tuning · dyno · boost
Camshaft positioned above valves
Complete systematic repair
- warpingBecoming bent or twisted
- crackingBreaking without separating completely
- resurfacingComing up again
- leakEscape through a breach
overheating · rebuild · valve job · carbon buildup · pressure test · milling
valves
Flow-controlling mechanisms
- camshaftLobed rod operating valves
- spark plugsDevices creating engine combustion
- gasketMechanical leak preventer
rocker arm · lifter · pushrod · retainer · combustion chamber · water jacket
casting
Shaping through liquid form
bolt pattern · porting · polishing · flatness · compression ratio · metallurgy · heat treatment
horsepower
Rate of mechanical work
polishing · racing · aftermarket · blueprinting · tuning · dyno · boost
overhead cam
Camshaft positioned above valves
overhaul
Complete systematic repair
- warpingBecoming bent or twisted
- crackingBreaking without separating completely
- resurfacingComing up again
leak · overheating · rebuild · valve job · carbon buildup · pressure test · milling
- engine partspiston, valve, crankshaft, camshaft, spark plug
- gas enginespistons, crankshafts, camshafts, carburetors, spark plugs
- iron castingscast iron, pig iron, engine blocks, manhole covers, drain covers
- Diesel Engine Partsfuel injectors, turbochargers, glow plugs, fuel pumps, pistons
- track lighting partsend cap, spotlights
- V8 enginesV8, V8s, engine block, big block, flathead
cylinder headscrankcase
Engine's lower enclosure
engine block · oil pan · sump · oil reservoir
cylinder, head, cylinders, heads, cylindrical, cylindrically, headed, heading, headless