Description
This sale is for a CNC Ported Pair, with as Cast Chambers.
Assembled & suitable for Street Solid Roller, max 7000 RPM & .650" lift.
Utilising Comp Cams Street Series Valve Springs.
- Angle Spark Plug
- CNC Port Shape, High Torque inlet runners that flow 573hp @ .600" lift
- 228cc Intake runner volume (CNC Ported)
- 88cc Exhaust (CNC Ported)
- 64cc Chamber size (As Cast) (these heads can be milled down to 60cc)
- Crisp throttle response.
- Internal Cast Quality + Thick ( Super Smooth Water Jackets for maximum flow - see our photos of the internal casting)
- Optimal Spark Plug position. The copies dont have this location.
- Premium Bronze Valve Guides. 0.570" OD
- Use Valve Stem Steals: Comp Viton: 518-16 Teflon: 503-16
- Seal Size 0.530" x 11/32
- Hard 355-T6 Aluminium - Race Quality.
- 3 Angle Valve Seats
- Intake Valve size: 2.02"
- Exhaust Valve size: 1.60"
- Recommended Spark Plugs: 750 reach gasketed 5/8 hex. NGK-BCPR7ES
- Recommended Intake Gaskets: Felpro 1205 std Port or Felpro 1206 for Ported
- Recommended Guide Plates: Comp Cams 4835-8 / DRP-4835-GP
- Valves needed: Intake: 2.020" x 5.011" Long x 11/32" stem. Ferrea Part F5027-8
- Valves needed: Exhaust: 1.600" x 5.011" long x 11/32" Stem. Ferrea Part F5025-8
- Intake valve seat can be cut to accomodate a 2.080" Valve diameter.
Have confidence and pride these are quality items Hand Assembled right here in Melbourne Australia.
Exceptional Quality for a Wow factor of a price!
*See the photo of the internal cast quality. We cut a cylinder head in half to verify the thickness and quality. These castings are exceptional quality.
These Cylinder heads flow and work like you wont believe. Best Bang for your Buck!
Dont waste your time or money on rebuilding old Cast Iron units - upgrade now. Forget the headaches, poor valve seats and crack testing woes.
We do offer Complete assemblies, valves, springs, retainers to suit your application, see our other listings for various assemblies to suit your camshaft. We use Ferrea Valves, DRP Stainless Steel Valves and Comp Cams hardware.
Always trust TOTAL PERFORMANCE for the right parts.
Specifications
SKU | DRP-SBC225CNC-SR-S |
Brand | DRP |
Unit Of Measure | ea |
Warranty | Manufacturers Warranty |
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