PS8017 - Heads - 270cc LS CNC Ported Head
PS8017 - Heads - 270cc LS CNC Ported Head

Bolt 'em on and grip the wheel tight!

Get big power on a small budget with BluePrint Muscle Series LS cylinder heads! These lightweight aluminum heads bolt up to your LS engine and feature CNC-machined 270cc intake/106cc exhaust runners, 77cc combustion chambers, and 2.165" intake/1.600" exhaust valves. They're fully assembled with valve springs, retainers, locks, guideplates, studs, and seals.

■ Maximum output for less money!
■ Designed and produced by BluePrint Engines
■ CNC-Machined Combustion Chamber/Intake & Exhaust Runner
■ Fully assembled with heavy duty components
■ Backed by our full 12-month limited warranty





Intake Runner Volume: 270cc
Intake Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter: 2.165 in.
CNC-Machined Intake Runner: Yes

CFM Port Flow Average @ 28"
.100" - 109
.200" - 174
.300" - 231
.400" - 285
.500" - 322
.600" - 349


Runner Volume: 106cc
Exhaust Valve Diamete: 1.600 in.
Exhaust Valves Included: Yes
Port Shape: Round
Exhaust Port Location: Standard
CNC-Machined Exhaust Runner: Yes

CFM Port Flow Average @ 28"
.100" - 70
.200" - 117
.300" - 160
.400" - 199
.500" - 242
.600" - 275

Combustion Chamber

Combustion Chamber Volume (cc): 77cc
CNC-Machined Combustion Chamber: Yes

Valve Specs

Maximum Valve Lift: .650 in.
Intake Valve Angle: 12 Degrees (3 degrees rolled)
Exhaust Valve Angle: 12 Degrees (3 degrees rolled)
Valve Guides Included: Yes
Valve Guide Material: Manganese Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-Angle
Valve Seat Material: Chrome Nickle
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Viton® Fluoroelastomer


Valve Springs Included: Yes
Spring Pressure Open: 360-380 @ 1.150
Spring Pressure Closed: 125-135 @ 1.800
Outside Diameter of Outer Spring (in): 1.295 in.
Damper Spring Included: Yes
Number of Springs per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromemoly Steel
Locks Included: Yes
Lock Style: 7 Degree


Guide Plates Included: Yes
Guide Plate Pushrod Size (in): N/A

Rocker Arms

Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No


Head Style: Assembled

Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural

Spark Plug Style: Standard
Cover Mounting Style: Standard
Accessory Bolt Holes Drilled: Yes
Steam Holes Drilled: No
Oiling Style: Through Pushrod
Machined for O-Ring: No
Heat Crossover: No


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Backed by our full 12-month limited warranty!

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