BBC PRO1 20? 409cc CNC Cylinder Head - Bare 4.500 Bore Chamber
Maximum competition, high torque, high compression - low dome. 8000+ RPM, 500+ cubic inches.

Information:

BBC PRO1 20 409cc CNC Cylinder Head - Bare 4.500 Bore Chamber
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Cylinder Heads
Category Hierarchy Heads>Big Block Chevy>Pro1
CNC Ported Yes
Combustion Chamber Volume 97.00
Cylinder Head Series Pro1
EBAY Category ID 33617
Emission Code Legal US
Engine 454
Engine - Web 454
Engine Family Big Block
Engine Type ICE
Exhaust Valve Diameter 1.800
Hazardous Material Code N
Industry Automotive
Intake Runner Volume 409.00
Intake Valve Diameter 2.350
Life Cycle Status Code Available to Order
Make Chevrolet
Make - Web Chevrolet
Material Cast Aluminum
NAFTA Preference Criterion Code B
Port Location Raised
Port Style Rectangle
Port Volume 409.00
Product Market Domestic
Product Type Engine Cylinder Head
SDR Required Flag N
Series BBC Pro1 Chevrolet Big Block Heads
Subcategory Cylinder Heads
Title - Web BBC PRO1 20? 409cc CNC Cylinder Head - Bare 4.500 Bore Chamber
Valve Angle 20
Valve Spring Diameter Bare
Valve Spring Maximum Lift Bare
Valve Spring Type Bare
Warranty Time 30
GTIN 00807501054392