Proflow Cylinder Heads, SuperMax 220 CNC, SB Chev, Aluminum, Assembled, 7/16 Studs & G/Plates 64cc Chamber, Angle Plug, 210cc Intake Runner,600HP,Pair
Part Number:PFEAHC22064-CNC
Low stock - Only 3 left
Proflow Cylinder Heads, SuperMax 220 CNC, SB Chev Aluminum, Assembled, 64cc Chamber
Proflow does not sacrifice quality for a low priceyou 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!
SPECIFICATIONS |
|
| Material | A356 Aluminum |
| Intake Port Volume | 217cc |
| Intake seat size | 2.10 |
| Exhaust seat size | 1.6 |
| Intake Port Dimension | 2.25" H x 1.550" W x 3/8 Radius |
| Intake Port Location | Stock |
| Exhaust Port Volume | 77cc |
| Exhaust Port Dimension | 1.440" H x 1.55" W |
| Exhaust Port Location | 0.250" Raised |
| Combustion Chamber Size | 66cc |
| 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 |
FEATURES |
| Intake Valve, 2.10" 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 |
RECOMMENDED COMPONENTS |
|
| 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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