Speedmaster As-Cast Cylinder Heads PCE281.2149

Brand:
Speedmaster
Manufacturer’s Part Number:
PCE281.2149
Part Type:
Cylinder Heads
Product Line:
Speedmaster As-Cast Cylinder Heads
Summit Racing Part Number:
SDM-PCE281-2149
UPC:
840136532286
Combustion Chamber Volume (cc):
65
Intake Runner Volume (cc):
170cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Aluminum
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.020 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
Rectangular
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.600 in.
Camshaft Style:
Hydraulic roller
Outside Diameter of Outer Spring (in.):
1.450 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Locks Included:
Yes
Lock Style:
10 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Center and perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
18
Exhaust Valve Angle:
18
Valve Guides Included:
Yes
Valve Guide Material:
Bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Quantity:
Sold as a pair.

Speedmaster As-Cast Cylinder Heads

Speedmaster as-cast cylinder heads offer improved power throughout the entire rpm range for greater throttle response and top-end performance. Speedmaster as-cast cylinder heads are designed for entry-level street/strip applications and are available for popular V8 engines (bare or assembled). Order the model recommended for fitment with your year/make and engine size.

Features and benefits Include:

* Bronze valve guides
* CNC-finished faces and bolt holes for extreme accuracy
* T6 heat-treated gravity die-cast construction (alloy heads only)
* OEM accessory bolt patterns
* Plenty of material for upgrading to larger horsepower applications
* Machined for screw-in studs and guide plates
* Flame-hardened valve seats for use with all fuel