Ford Big Block CNC Porting Package available for Big Block Ford A-series heads. 481+ CFM!

Following porting each head receives a precision multi-angle valve job to maximize flow. Porting detail work is done by hand.
We offer TFS and EX514 Extreme heads

Standard 10 Bolt Big Block Ford Pattern Utilizes standard stud and shaft mount rocker systems Intake valve angle is 13/5 deg. Exhaust valve angle is 9.5/5 deg. Intake port and bolt pattern is compatible with TFS & Motorsport intake manifolds Latest technology combustion chamber design available 90 CC Chamber Volume, Can be milled to 63 CC Heads and manifolds in stock now!

REAL WORLD FLOW NUMBERS
*Bowl blend and competition valve job		*Modified Porting Package		*Pro Mod. Port and Polish

INTAKE 2.350 Dia. .700 Lift 392 CFM

EXHAUST 1.940 Dia. .700 Lift 288 CFM

INTAKE 2.350 Dia. .750 Lift 418 CFM

EXHAUST 1.940 Dia. .750 Lift 310 CFM

INTAKE 2.400 Dia. .800 Lift 458 CFM

EXHAUST 1.900 Dia. .800 Lift 343 CFM

OPTIONS

Full CNC port package

Fully assembled to customer specifications with valve, springs, & retainers optional

INTAKE PORT	EXHAUST PORT
NOTE THE THICK DECK SURFACE

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Shanons Engineering, Inc. 15487 13th Avenue South Haven, Minnesota 55382 Phone: (320) 274-5278	Shanons Engineering, Inc. Accepts MasterCard and VISA.
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