LS1 LS2 Engine Pro Racing Cathedral Cylinder Heads 63CC 235CC Intake Runner Like 243

SKU: EPCH-3000
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243
Ls1 Ls2 Engine Pro Racing Cathedral Cylinder Heads 63Cc 235Cc Intake Runner Like 243

LS1 LS2 Engine Pro Racing Cathedral Cylinder Heads 63CC 235CC Intake Runner Like 243

SKU: EPCH-3000
Regular price $1,625.00
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Description

Bare Heads Pair - Cathedral Intake Ports 235cc, 15 Degree Valve Angle 

These are a direct replacement upgrade for Cathedral port LS heads as found on LS1 LS2 LS6 LS engines. Having Bronze guides you will require spring bases to suit (with an ID of .565"). We have these available.

with a 235 CC intake runner they are bigger than the 211cc port in a 243 head and 200cc in a 241 head. They also have a 63cc combustion chamber to help bump up the comp for those naturally aspirated engines.

Suits VT-VZ 5.7 engines and 6.0L HSV engines(ls2)

OE 4 Head Bolt Design 

Material | Aluminium 
Combustion Chamber Volume | 63cc 
Intake Runner Volume | 235cc 
Intake Port Size H x W | 3.23" X 1.10" 
Exhaust Runner Volume | 93.6cc 
Exhaust Port Size H x W | 1.41"X 1.71" 
Intake Valve Size | 2.020" 
Exhaust Valve Size | 1.600" 
Valve Stem Diameter | 8.00mm 
Valve Length | Standard Length 
Valve Angle | 15 Degree 
Valve Guide Seal Diameter | 0.500" 
Valve Guide Material | Manganese Bronze 
Valve Spring Base Diameter | 1.358" 
Rocker Type | LS1 
Deck Thickness | 0.625" 

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