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- Gen III & Gen IV Small Blocks
- Cathedral Port
- Port Volumes: 215cc/76cc
- 65cc Combustion Chambers
- Bare Head, Sold Individually
Designed for 1997 & later GEN 3 & 4 LS1/LS2 Chevy engines including 4.8L, 5.3L, 5.7L & 6.0L. All E-CNC Cylinder Heads feature fully CNC'd intake ports, combustion chambers and exhaust ports for improved air-flow. Dyno tests proved these heads are capable of 457 hp & 438 ft-lbs. of torque. High-quality conical beehive springs are secured with steel retainers and valve locks for performance up to .600" valve lift. Match with any one of Edelbrock's LS series intake manifolds and camshafts for a dyno-proven performance combination. Rocker bolt kit 350-8597 includes 8 rocker bolts that are shorter than stock to prevent the bolts from protruding into the intake ports. E-CNC 215 head is 50-state street legal.
Combustion Chamber Volume: 65cc Intake Runner Volume: 215cc Exhaust Runner Volume: 76cc Valve Stem Diameter: 8mm Valve Guides: Manganese Bronze Deck Thickness: 5/8' Valve Spring Maximum Lift: 0.600' Rocker Stud: N/A Guideplate: N/A Pushrod Diameter: 5/16' Valve Angle: 15° Exhaust Port Location: Stock Spark Plug Fitment: 14mm x .708' Reach,
Tapered Seat (OE-style)Valve Lift Intake Exhaust .100' 64 57 .200' 134 107 .300' 193 147 .400' 239 180 .500' 274 200 .600' 285 210 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
