2.4L/2.5L Duratec CNC Portwork with Valves 37/31mm + New Seats

Description

2.4L/2.5L Duratec CNC Port Work with Big Valves 37/31mm + New Seats

HEAD-M-DURA-07-BV-CNC

2.4L- 2.5L (89mm bore) Duratec CNC port work with big valves (inlet:37mm, exhaust:31mm), larger inlet valve seats and standard guides, performance up to 350bhp.

The 2.5L Duratec head casting has a unusual intake port shape, which is quite different to the original 2.0/2.3L version. This shape does not give any benefit to performance and if anything, will potentially lose performance. It has probably been created to produce torque at very low rpm since this is what Ford designed the 2.5L engine for. When we carry out cylinder head work, we re-machine the port shape and fit aluminium inserts to change the shape to match the 2.0L/2.3L versions.

Prices are based on cylinder heads being supplied by customer, however we can supply new cylinder head, please contact us for details.

All the Duratec head performance figures are based on the 2008-on Focus high port head. Read more information about Duratec cylinder heads

Earlier heads are likely to produce 10-15bhp less. The maximum performance figures shown are based on using our components; we cannot confirm what your gains would be with non-SBD components. The results should be similar for the 2.0L & 2.3L Duratec, just produced at different rpm. Please refer to our kits for more information.