Speedmaster®

Mopar Chrysler BB 383 440 265cc 74cc Hydraulic Roller Assembled Cylinder Heads

3 Reviews
MPN: PCE281.2153 UPC: 840136532330
Available Extended Warranty Eligible
US $1,214.10

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Specs

Brand:Speedmaster
Part Number:PCE281.2153
Part Type:Cylinder Heads
  
Cylinder Head Style:Assembled
Cylinder Head Material:Aluminum
Cylinder Head Finish:Natural
Combustion Chamber Volume (cc):74 cc
CNC-Machined Combustion Chamber:Yes
Intake Runner Volume (cc):265 cc
Exhaust Runner Volume (cc):n/a
CNC-Machined Intake Runner:No
CNC-Machined Exhaust Runner:No
Intake Port Shape:Rectangular
Intake Port Location:Standard
Exhaust Port Shape:Rectangular
Exhaust Port Location:Standard
Spark Plug Style:Standard
Comp. Valve Job:No
Intake Valves Included:Yes
Intake Valve Diameter (in):2.200 in.
Exhaust Valves Included:Yes
Exhaust Valve Diameter (in):1.810 in.
Valve Springs Included:Yes
Maximum Valve Lift (in):0.650 in.
Outside Diameter of Outer Spring (in):1.550 in.
Damper Spring Included:Yes
Number of Springs Per Valve:Single
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 & Perimeter Bolt
Accessory Bolt Holes Drilled:Yes 
Intake Valve Angle:15 deg.
Exhaust Valve Angle:15 deg.
Valve Guides Included:Yes 
Valve Guide Material:Bronze 
Valve Seats Machined:Yes
Valve Seat Machine Style:3-angle
Valve Seat Material:Ductile iron 
Steam Holes Drilled:No
Oiling Style:Through pushrod 
Machined for O-Ring:No 
Heat Crossover:No
Quantity:Sold as a pair.
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Description

Assembly Specifications
Max Lift: .650
Coil Bind: .1.125
Intake Install: 145lbs @ 1.9
Exhaust Install: 145lbs @ 1.9
Closed Sear Pressure: 135lbs
Open Seat Pressure: 280lbs

Brand Information



Speedmaster has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. The team has shared all the finest moments in the numerous accolades for its people, its products, and its approach. Speedmaster is also one of the rare companies to produce its own products, where majority items are entirely developed and manufactured in its workshops. The ultimate token of precision, Speedmaster is the world’s only major parts manufacturer to equip cars from Standard replacement to Top Fuel Dragsters.

In 1979, the company was founded with Pete’s Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which en

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.


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