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AFD SP4V (3V) Alloy Cleveland cylinder heads

AFD HEADS

  • $1,695.00


NEW PORT AND CASTING UPGRADE TO BE RELEASED MARCH/APRIL 2017 

AFD SP4V FORD ALLOY CLEVELAND CYLINDER HEADS
ALL SALES ARE FOR 1 SET (2) CYLINDER HEADS  

Material:                                         356 Alloy, T6 

Chamber Volume:                         55cc,  58cc, 64cc,  68cc ,72cc options

Complete Assembly options  in all chamber size

Intake Runner Volume:                  235cc

Intake Port location                        raised .125” 3V design 

Minimum Cross Section:               2.50 square inches MCSA 

Exhaust Runner Volume:             125cc - high velocity

Exhaust Port Location                 Raised .080” (near stock location) 

Valve sizes                                  Intake 2.190” (45 degree seat, custom 5 angles)

                                                     Exhaust 1.710” (45 degree seat custom high velocity radius) 

Valve Guide Angles:                   Canted Valve angles
                                                    Intake 9.5 x 4 degrees
                                                    Exhaust: 9.5 x 3.0 degrees 

Valve Guides:                             Manganese Bronze .502” x 11/32” stems  from C.H.E

Valve Seat Inserts:                     Intake: 2.250” x 1.880 x 3/8 (Durabond 7000)
                                                    Exhaust: 1.750” x 1.430” x 3/8 

Spark Plugs:                               relocated for efficient fast burn
                                                    ¾ reach, 5/8 hex, washer seat (NGKBCP7ES) 

Spring Pads:                              1.570” od/.560” id 

Valve Spring Height:                  1.960” (with stock length valve) 

Pushrods                                    5/16” or 3/8” (check required length)

Rocker Arm Studs                      7/16” unc

Rocker Arm Type                        7/16” stud mounted roller rockers (1.73 ratio)


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