ENGINE PRO RACING Chevrolet LS1 & 2 Cathedral intake ports, 15 degree
These heads are sold in Pairs
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
OE 4 Head Bolt Design
This head design is optimized for performance and reliability, featuring the following specifications:
Specifications:
- Material: Aluminium
- Combustion Chamber Volume: 63cc
- Intake Runner Volume: 235cc
- Intake Port Size: 3.23" H x 1.10" W
- Exhaust Runner Volume: 93.6cc
- Exhaust Port Size: 1.41" H x 1.71" W
- 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 (Use OE Rocker Stand - Not Included)
- Notching of Stand: Maybe Required
- Deck Thickness: 0.625"
Flow Data @ 28" (CFM):
Intake:
- @.300": 205
- @.400": 259
- @.500": 294
- @.600": 310
- @.700": 300
Exhaust:
- @.300": 139
- @.400": 177
- @.500": 210
- @.600": 220
- @.700": 226
| Product Name | ENGINE PRO RACING Chevrolet LS1 & 2 Cathedral intake ports, 15 degree |
|---|---|
| Brands | Engine Pro, Permaseal |
| Engine | GM / LS |
| Make | Chevrolet, Holden |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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