440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)

Name: 440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)
Brand: PROMAXX PERFORMANCE
SKU: 723-9240
Price: 2431.43 USD
Availability: InStock

^$2,431⁴³

Ships on 09/21/2026

Lowest Price Guarantee

240cc Intake Ports

Big Block Chrysler (B/RB)
240cc Intake Ports
84cc Combustion Chambers
2.19" Intake, 1.81" Exhaust Valve Sizes
100% CNC'd Ports and Chambers
Bare, 2/pkg.

This "Bare" head does NOT include Valves, Valve Springs, Retainers or Locks.
Additional Cylinder Head Specifications
Valve Angle: 15°
Spark Plug Type: Angled
Through Head Oiling System
Standard Port Locations
Bronze Valve Guides

Emissions 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.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Maxx Quality, Performance and Affordability!

The ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm! This combined with a 5-angle competition valve job, diamond-honed bronze guides, hand bowl blending, and professional assembly to outperform the best brands in the business.

Features:

A356-T6 Aluminum Construction
Available As-Cast with 210cc Intake Ports or 100% CNC-Ported with 240cc Intake Ports
As-Cast Heads feature some hand bowl blending
Efficient chamber design
Available bare or assembled
5-angle competition valve job
Diamond-honed bronze guides
"MAXX" power for street or strip
Sold in pairs

Part TypeCylinder Head

Product LineProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads

BrandPROMAXX PERFORMANCE

Part CategoryPerformance Parts

Part FitmentSemi Universal

Package Qty1

Package TypeEA

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