Pontiac_389_455_215cc_72cc_RamAir_IV_Bare_Round_Ext_Port_Aluminum_Cylinder_Head_01_qmqr

Pontiac 389 455 215cc 72cc RamAir IV Bare Round Ext Port Aluminum Cylinder Head

Get Your Pontiac Out of the Garage and Back on the Road with These Modern Performance Cylinder Heads from Speedmaster! Our Heads Flow 289CFM As Cast! Order 1 for each head, 2 for a pair. Save Your Factory Cast Iron Heads Because They're Never Going To Make Them Again. These Weigh a Lot Less & Flow a Lot More! Bare Round Exhaust Port Head with Seat and Guides. No Valves, Valve Springs, Retainers, etc. Valve Lift Intake Exhaust. Combustion Chamber Volume (cc). Intake Runner Volume (cc). Exhaust Runner Volume (cc). Intake Valve Diameter (in). Exhaust Valve Diameter (in). Valve Stem Seals Included. Rocker Arm Studs Included. Rocker Arm Nuts Included.…
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Pontiac_Chevy_Rolled_Deck_10_Degree_High_port_Cylinder_heads_01_fn

Pontiac / Chevy Rolled Deck 10 Degree High port Cylinder heads

Pontiac / Chevy 10 Rolled Degree High Port Heads (1 Set of 2 Cylinder heads) Fits Small Block Chevy Block. Last Pair of Custom Factory Race heads for a program similar to the Buick / Chevy Heads. They have a semi finished porting and valve job. They will require a custom manifold and custom length valves. Only 3 sets ever made 2 sets are owned by GM Designed and Developed by EPD Racing Heads. It appears they are setup for a 2.100 x 1.625 valves and the chambers are setup for about a 4.030+ bore and the chamber and head design is based on a 10 degree dart Buick other…
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