Proflow Cylinder Heads, SuperMax 210 CNC, SB Chev Aluminum, Assembled, 64cc Chamber

Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of Engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, High Performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. These heads are capable of producing over 600 HP straight out of the box!

SBC 210 Angle Plug
Specifications & Features:
Material A356 Aluminum
Intake Port Volume 210cc
Intake seat size 2.08
Exhaust seat size 1.6
Intake Port Dimension 2.200" H x 1.310" W x 3/8 Radius
Intake Port Location Stock
Exhaust Port Volume 80cc
Exhaust Port Dimension 1.420" H x 1.545" W
Exhaust Port Location 0.250" Raised
Combustion Chamber Size 65cc or 72cc
Valve Cover Bolt Pattern Perimeter Bolt
Valve Angle 23
Valve Spring Pocket Diameter 1.580" O.D
Max Valve Spring Pocket Machining 1.750" O.D
Warning: Do not machine spring pad any deeper.
Deck Thickness .750"
Minimum Bore Diameter 4.000"
Flat Mill .006" per cc 60cc Maximum
Angle Mill .009" per cc 55cc Maximum
Note: Angle mills might require .120" Thick intake gasket.
Spark Plug Dimensions 14mm x .750" w/Gasket Seat
7/16" Rocker Studs Included
5/16" Guide Plates Adjustable Included
Viton Valve Seals
Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
Bronze Valve Guides .502" O.D x 2.100" O.A.L
Recommended Components
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit MIC heads.
Exhaust Port Gasket, Fel-Pro #1405
Head Gasket, 350cid Fel-Pro #1003
Head Gasket, 400cid Fel-Pro #1014
SB Chevy Head Bolt Kit, ARP #134-3701
SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301

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