Proflow Cylinder Heads, SuperMax 220 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 220 Angle Plug  
   
   
Specifications & Features:  
Material A356 Aluminum
Intake Port Volume 220cc
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
  Not Emissions Complient
   
   
Plug Angle Plug option
Valve, 2.080" x 5.000" Overall Valve Length  
Exhaust Valve, 1.600" x 5.030" Overall Valve Length  
Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400
7/16" Rocker Studs  
5/16" Guide Plates  
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  
   
   
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  
 

More From This Category

Proflow Air Cleaner Stud Stud Kit, 5in. with adaptor

Proflow Air Cleaner Stud Stud Kit, 5in. with adaptor

$17.01

View