Description
Overview:
Get big power on a small budget with BluePrint Muscle Series cylinder heads! These lightweight aluminum heads bolt up to your big block Chevy and feature 358cc intake/125cc exhaust runners, 119cc combustion chambers, and 2.3″ intake/1.880″ exhaust valves. They’re fully assembled with valve springs, retainers, locks, guide plates, studs, and seals. Manufactured part number PS8012.
Maximum output for less money!
Designed and produced by BluePrint Engines
Fully assembled with heavy duty components
Backed by our full 12-month limited warranty
Intake:
Intake Runner Volume (cc): 358cc
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.3 in.
CFM Port Flow Average @ 28″
.100″ – 116
.200″ – 184
.300″ – 241
.400″ – 291
.500″ – 328
.600″ – 351
Exhaust:
Runner Volume (cc): 125cc
Exhaust Valve Diameter (in): 1.880 in.
Exhaust Valves Included: Yes
CNC-Machined Exhaust Runner: No
Port Shape: D-Shape
Exhaust Port Location: Raised approx .300” vs OEM
CFM Port Flow Average @ 28″
.100″ – 84
.200″ – 130
.300″ – 183
.400″ – 226
.500″ – 260
.600″ – 286
Combustion Chamber:
Combustion Chamber Volume (cc): 119cc
CNC-Machined Combustion Chamber: No
Valve Specs:
Maximum Valve Lift (in): .700 in.
Intake Valve Angle: 24 Degrees (2 degrees rolled)
Exhaust Valve Angle: 15 Degrees
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
Springs:
Valve Springs Included: Yes
Spring Pressure Open: 380-400 @ 1.250
Spring Pressure Closed: 135-145 @ 2.000
Outside Diameter of Outer Spring (in): 1.540 in.
Damper Spring Included: Yes
Number of Springs per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromemoly Steel
Locks Included: Yes
Lock Style: 10 Degree
Pushrods:
Guide Plates Included: Yes
Guide Plate Pushrod Size (in): 3/8 in.
Rocker Arms:
Rocker Arm Studs Included: Yes
Rocker Arm Stud Size (in): 7/16 x 20
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Misc:
Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Spark Plug Style: Straight
Cover Mounting Style: Perimeter Bolt
Oiling Style: Through Pushrod
Machined for O-Ring: No
Spark Plug Style: Straight
Valve Cover Mounting Style: Perimeter Bolt
Heat Crossover: No
Camshaft Style:
7/16-14 in. & 3/8 -16 in. Accessory Bolt Holes Machined on Ends of Heads
Exhaust port location raised approx. .300” vs OEM
Qty:
Sold Individually
Warranty:
Backed by our full 12-month limited warranty!
WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov
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