Ford 302 351C Cleveland 235cc 71cc Full CNC Aluminum Bare Cylinder Head

Description

PCE281.1724
Brand:
Speedmaster
Part Number:
PCE281.1724
Part Type:
Cylinder Heads
Cylinder Head Style:
Bare
Cylinder Head Material:
Aluminum
Cylinder Head Finish:
Natural
Combustion Chamber Volume (cc):
71 cc
CNC-Machined Combustion Chamber:
Yes
Intake Runner Volume (cc):
235 cc
Exhaust Runner Volume (cc):
n/a
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Intake Port Shape:
Rectangular
Intake Port Location:
Standard 3V (4v with tongues)
Exhaust Port Shape:
Rectangular
Exhaust Port Location:
Raised
Spark Plug Style:
Standard
Comp. Valve Job:
No
Intake Valves Included:
No
Intake Valve Diameter (in):
2.190 in.
Exhaust Valves Included:
NoÊ
Exhaust Valve Diameter (in):
1.710 in.Ê
Valve Springs Included:
NoÊ
Damper Spring Included:
NoÊ
Retainers Included:
NoÊ
Locks Included:
NoÊ
Valve Stem Seals Included:
NoÊ
Rocker Arm Studs Included:
NoÊ
Rocker Arms Included:
NoÊ
Rocker Arm Nuts Included:
NoÊ
Guideplates Included:
NoÊ
Valve Cover Mounting Style:
Perimeter Bolt
Accessory Bolt Holes Drilled:
YesÊ
Intake Valve Angle:
Standard
Exhaust Valve Angle:
Standard
Valve Guides Included:
YesÊ
Valve Guide Material:
BronzeÊ
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile ironÊ
Steam Holes Drilled:
No
Oiling Style:
Through pushrodÊ
Machined for O-Ring:
NoÊ
Heat Crossover:
No
Quantity:
Sold individually.
Notes:
Exhaust port raised
Calculator:
Compression Calculator
The Speedmaster Ford Cleveland 3v heads are a perfect upgrade for both 2 and 4 barrel engines. We have re-designed the intake ports by raising the floor to help cut down on the massive cross-section that hampers OEM 4 barrel heads. Not only do you get more performance out of the box than OEM heads, our heads are significantly lighter since they are made of "Gravity Die Cast" aluminum. As another benefit, you can run higher compression with aluminum heads before the onset of power robbing detonation. There is absolutely no reason to rebuild a set of OEM castings when you can buy a lighter, higher flowing and more detonation resistant cylinder head for less money from us! To top it all off, we offer CNC ported Cleveland heads for people looking for even more performance.
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 PCE281.1703, PCE281.1714, PCE281.1724 and PCE281.1726 cylinder heads use the following head gaskets for use with 351C block:
Speedmaster PCE348.1005 (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 PCE279.1014.
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.