Get big power on a small budget with BluePrint Muscle Series cylinder heads! These lightweight aluminum heads bolt up to your small block Chevy and feature 195cc intake/75cc exhaust runners, 64cc combustion chambers, and 2.02" intake/1.60" exhaust valves. They're fully assembled with valve springs, retainers, locks, guideplates, studs, and seals.
Intake
195cc Intake Runner Volume
2.020" Premium Stainless Steel Intake Valves Feature A Swirl Polished Undercut Stem
CFM Port Flow Average @ 28"
.100" - 83
.200" - 150
.300" - 190
.400" - 223
.500" - 252
.600" - 245
Exhaust
75cc Exhaust Runner Volume
1.600" Premium Stainless Steel Exhaust Valves Feature A Swirl Polished Undercut Stem
CFM Port Flow Average @ 28"
.100" - 83
.200" - 130
.300" - 166
.400" - 193
.500" - 207
.600" - 213
Combustion Chamber
64cc Combustion Chamber Volume
Valve Specs
.575" Maximum Valve Lift
23 Degree Intake Valve Angle
23 Degree Exhaust Valve Angle
Manganese Bronze Valve Guides
3-Angle Valve Job
Chrome Nickel Valve Seats For Unleaded Fuels
Viton® Fluoroelastomer Valve Stem Seals
Springs
Spring Pressure Open: 295-305 @ 1.225
Spring Pressure Closed: 115-125 @ 1.800
Outside Diameter of Outer Spring (in): 1.437 in.
Dual Valve Springs
Chromemoly Retainers
7 Degree Valve Locks
Rocker Arms
3/8" Rocker Arm Studs Included Along With Guide Plates For 5/16" Pushrods
Misc.
Will Accept Either An Early 12 Bolt Intake Manifold Or Late "Vortec" 8 Bolt Manifold
Straight Spark Plug Holes Use A .750" Reach Gasket Style Plug
Perimeter or Center Bolt Valve Cover Bolt Holes
Accessory Bolt Holes Machined On Ends Of Heads