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Vehicle Info NeededEDELBROCKPART NUMBER: 350-61555
Marine Performer RPM Aluminum Cylinder Heads for Rectangle Port Big Block Chevy
$1,55516$1943.95You Save$388.79
1 left in stock
Ships on Sep 14, 2026
Lowest Price Guarantee- Marine Big Block Chevy 396-502ci
- Valve Springs for Hydraulic Roller
- Port Volume: 290cc/110cc
- Valve Size: 2.25"/1.89"
- 118cc Combustion Chambers
- Bare with Valves, Sold Individually
These Edelbrock marine cylinder heads include severe-duty, 1.89' inconel exhaust valves for the added durability needed in marine applications and have one-piece stainless steel 2.25' intake valves with hardened tips and swirl-polished heads.Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230' shorter than a conventional spark plug and have a 5/8' hex for easier access.
Combustion Chamber Volume: 110cc Intake Runner Volume: 290cc Exhaust Runner Volume: 118cc Intake Valve Diameter: 2.25' Exhaust Valve Diameter: 1.89' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 9/16' Valve Spring Maximum Lift: N/A Rocker Stud: 7/16' Guideplate: Hardened Steel 3/8' Pushrod Diameter: 3/8' Valve Angle: 26° Exhaust Port Location: Stock Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatEmissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCylinder Head
BrandEDELBROCK
Package Height9.0
Package Width11.0
Package Length26.0
Weight43.85 PG
Part CategoryPerformance Parts
UsageMarine
TypeComplete
PreparationRequires Professional Preparation (Bare)
EmissionN/A
Cylinder Head TypeChevy Small Block
Part FitmentSemi Universal
FinishSatin
Engine Make/SizeChevy Big Block (396-502)
Vendor Part Number61555
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
