Cylinder heads for marine engines
Essential engine parts for reliable performance at sea
Maintain your engine's performance with our marine cylinder heads, designed to provide optimal sealing and compression for boat engines.
Key component for marine engines
The cylinder head closes the top of the combustion chambers, ensuring proper compression and engine sealing for reliable performance.
Durable materials for harsh marine use
Available in aluminum or cast iron, our cylinder heads are designed to resist corrosion and harsh marine environments.
Compatible with marine engines
Our cylinder heads are suitable for Volvo, Mercury, Mercruiser, OMC, PCM, and other marine engines, providing durability and optimal performance at sea.
GM 4-6-8 VALVE KEY - FORD
Valve cotter for GM base engine sold individually.
Application :
- 4 cylinders
- 6 cylinders in line and in V
- V8 5 - 5.7 liters - SB
- V8 FORD 5 and 5.8 liters
GM V6-V8 HYDRAULIC ROLLER TAPPET
Hydraulic tappet with a roller to follow the camshaft lobes.
Unlike the RHT817 pushers which are flat.
GM V6 - V8 PUSH ROD ROLLER
Push rod for GM V6 - V8 engines with all types of roller tappets.
Length: 183 mm
Diameter: 7.92 mm
GM V6/V8 RLI EXHAUST VALVE
Exhaust valve for GM Vortec type engines with a single keyway.
head diameter 38.2mm
tail diameter 8.8mm
height 125mm
FORD VALVE SPRING
Single valve spring for base Ford engines.
- External diameter: 35.4mm
- Inner diameter: 25.3mm
- Height: 49.9mm
INTAKE VALVE GM V6-GM350 RLI
Intake valve for 4.3L V6 and 5.7L V8 engines featuring a single keyway notch.
head diameter 49.20mm
tail diameter 8.68mm
height 123.99mm
BB-496 HYDRAULIC ROLLER PUSHER
GM V6 - V8 RIGID VALVE STEM SEAL
GM VORTEC VALVE SPRING
Valve spring for V6 and V8 Vortec engines with a conical spring.
- External diameter: 31.75mm
- Inner diameter: 22.25mm
- Height: 51.33mm
GM INTAKE VALVE
Intake valve for GM base engine with the following dimensions:
- Head diameter: 49.26mm
- Tail diameter: 8.6mm
- Length: 124.19mm
VOLVO D4-D6 VALVE STEM SEAL
Intake and exhaust valve stem seal for Volvo Penta D4 - D6 series engines.
GM V6 VALVE STEM SEAL
GM EXHAUST VALVE
Exhaust valve of the following dimensions:
- Head diameter: 38.10mm
- Tail diameter: 8.66mm
- Length: 125.23mm
GM EXHAUST VALVE SEAT
GM V8 BB HP DOUBLE VALVE STEM SEAL
Valve stem seal for GM V8 454 or 502 engine with the following dimensions:
Inner diameter - guide: 13.462 mm
Outer diameter: 17.14mm
Valve diameter: 9.53mm
Height: 13mm
Gasket designed for installation with a cylinder head having 2 valve springs.












