Login for Access to Member Pricing

Edelbrock

Edelbrock Single Marine BBC Rect Port Head w/ Valves

MPN: 61559 Catalog #: 001131994 Category: Heads Check Vehicle Fitment

Product Details

The Edelbrock #61559 Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61559 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only.

Edelbrock part #61559 Performer RPM Marine-Duty cylinder heads are designed for use with Rectangular Port Big-Block Chevy Marine applications.

Cylinder Head Specifications: Combustion chamber volume: 110cc / 118cc; Intake runner volume: 290cc; Exhaust runner volume: 110cc; 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 diameter: Hydraulic Roller (#61555); Valve spring maximum lift: N/A; Rocker stud: 7/16; Guideplate: Hardened steel; Pushrod diameter: 3/8; Valve angle: 26?; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat. * Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. Deck thickness: 9/16, rocker stud diameter: 7/16, pushrod diameter: 3/8 (width of slot in guide plate). INSTALLATION NOTE: Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4 reach with flat gasket seat. Deck thickness: 9/16, rocker stud diameter: 7/16, pushrod diameter: 3/8 (width of slot in guide plate). All Performer and Performer RPM B/B Chevy heads have spark plugs relocated closer to center of bore which will interfere with high-dome pistons for open chamber heads. Use pistons designed for our heads. Deck thickness: 3/4, pushrod diameter: 7/16. Replacement valve part numbers are for sets of 8.

Chevrolet:Big-Block Mark IV:396 (6.6L)/402 (6.6L)/427 (7.0L)/454 (7.4L)/502 (8.2L)

Edelbrock; BBC; V8; Cylinder Head; 61559; Big Block Chevy; RPM; 454; 402; 396

RPM Marine Big-Block Chevy Cylinder Head Hydraulic Flat Tappet Cam

Edelbrock Single Marine BBC Rect Port Head w/ Valves

Single Marine BBC Rect. Port Head w/Valves

Edelbrock Cylinder Heads

Engine Cylinder Head

CYLINDER HEADS

CYLINDER HEAD

Cyl. Head

Cylinder Head - Performer RPM Marine-Duty - Bare - 2.190 / 1.880 in Valves - 315 cc Intake - 118 cc Chamber - Angle Plug - Aluminum - Valves - Big Block Chevy - Each

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - BBCMatched variant: BBC

Big Block Chevy; 396/427/454/572

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Edelbrock
Part Number
61559
Catalog Number
001131994
Product Line
Performer RPM Cyl Head
Category
Engines & Parts
Type
Heads
UPC / Barcode
85347615599
Vendor Product Category
Engine Components
Vendor Product Subcategory
Heads
Length
26.00 in
Width
11.00 in
Height
8.50 in
Weight
41.20 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Prop 65
Y
CARB Approved
No
Clearance Item
No

Shipping & Availability

Current status 24 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

STATE RESTRICTIONS: This item is not CARB approved and can not ship to California.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 24 available as of 6/4/2026.

Reviews & Questions

Real product feedback when available, plus quick ways to get fitment or product help.

Ask a Question
Need fitment help? Send us your year, make, model, engine, and the part number.
Already bought it? Reviews help other LMPerformance customers choose the right part.
Product question? We can help with specs, shipping, availability, and install details.

Other Popular Heads

$1,608.94
^