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HEAD BUILD KITS
Speedmaster offers most of our heads as bare castings, or professionally assembled. When we assemble heads, extra time is taken to set them up for YOUR application. All you have to do is choose the head casting you want and the type of cam you want the springs to work with.
HEAD BUILD KIT OPTIONS:
TYPE HEAD BUILD KIT CLOSED SEAT PRESSURE OPEN SEAT PRESSURE MAX. LIFT Hydraulic Flat Tappet Solid Flat Tappet Hydraulic Roller Solid Roller Race Solid Roller
HBK36 HBK37 HBK38 HBK39 HBK40
110 LBS 125 LBS 145 LBS 210 LBS 300 LBS
300 LBS 320 LBS 360 LBS 450 LBS 700 LBS
. 550”. 580”. 580”. 650”. 800”
INTAKE / EXHAUST GASKETS Due to the unique raised port of the Speedmaster 3v head, the only intake gaskets readily available are Speedmaster SM3282 which measure 1.73( W) x 2.140( T) with the floor of the port 1.220” up from the deck of the head.
The exhaust side of the head uses standard 4v exhaust gaskets. You can use Speedmaster SM3274 or Fel-Pro 1416 header gaskets which measure 1.89”( W) x 2.19”( T).
HEAD GASKETS The Speedmaster SM3061, SM3061VJ, SM3062 and SM3062VJ cylinder heads use the following head gaskets for use with 351C block:
Speedmaster SM5212( MLS 4.055” gasket bore) Fel-Pro 1013( Composite 4.100” gasket bore) Both gaskets are. 040” thickness when compressed.
HEAD BOLTS / STUDS The Speedmaster Cleveland 3v heads require specific head studs that are longer than standard.
Use Speedmaster pn # SM2456-3V. These studs should only be finger tightened into the block. Torque the nuts to 65lbs. using high pressure moly lube, in increments of 15lbs.
SPARKPLUGS Our Ford Cleveland cylinder heads require the use of a 14mm. thread 5 / 8” hex,. 750” reach spark plugs. Below you will find a list of some plugs that fit and work with our heads:
NGK- BCPR6ES, R5671A-7, R5671A-8 Autolite- 3923, 3924, AR3933, AR3934 Champion- RC12YC, RC10YC4, RC9YC3 Remember that you need a COLDER plug when you make more power, ie. N2O, Turbo and supercharging.
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