Big Block Chevy

115cc Combustion Chamber
320cc Intake Runners
7/16” Screw-in Studs & Guide Plates 3/8”
Phosphor Bronze Valve Guides
Positive Oil Control Seals
5 Angle Valve Job
Stainless 1 Piece Swirl-Polished Under-Cut Stems 2.250” Intake Valves (2.25x11/32x5.47x.250tip)
Stainless 1 Piece Swirl-Polished Under-Cut Stems 1.880” Exhaust Valves (1.88x11/32x5.45)
Springs Good to .600” Lift, (Hydraulic Roller / Solid Tappet) 135 psi @ 1.850” 400 psi @ 1.250” *check cam manufactures specs for compatibility* ( installed height + or - .020”)
Intake Valve Test @ 28” of Water .100 .200 .300 .400 .500 .600 .700 73 167 241 299 337 357 376 Exhaust Valve Test @ 28” of Water .100 .200 .300 .400 .500 .600 .700 64 115 153 194 230 245 263