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- Big Block Chevy 396-502ci
- Valve Springs for Hydraulic Flat Tappet
- Valve Size: 2.25"/1.88"
- Intake Ports 308cc (LH)/325cc (RH)
- Exhaust Ports 129cc
- 110cc Combustion Chamber
- Bare Head, Sold Individually
Combustion Chamber Volume: 110cc Intake Runner Volume: 303cc (LH) / 326cc (RH) Exhaust Runner Volume: 129cc Intake Valve Diameter: 2.25' Exhaust Valve Diameter: 1.88' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 9/16' Valve Spring Diameter: 1.55' Valve Spring Maximum Lift: 0.700' Rocker Stud: 7/16' Guideplate: Hardened Steel Pushrod Diameter: 3/8' Valve Angle: 25° Exhaust Port Location: .125' Raised Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 74 69 .200' 150 130 .300' 227 172 .400' 279 197 .500' 317 210 .600' 337 221 .700' 344 230 Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
E-CNC 325 OVAL PORT
BIG BLOCK CHEVY
E-CNC 325 oval port heads for big block Chevy have a 24.5° x 4.4° intake valve angle, 15.5° x 4.2° exhaust valve angle, stock exhaust port locations and spark plug angles that have been modified to produce a smooth flame front for increased fuel efficiency and maximum power.
These heads are equipped with high-quality valve springs for valve lifts of up to .700'' and are also treated to a full CNC porting of the combustion chambers as well as the intake and exhaust runners. This improves air-flow and overall performance potential. Made In The USA!
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