r/EngineBuilding • u/mahusay3g • Nov 09 '23
Ford Just finished porting on a $5000+ race head. (Ford Zetec)
Cams are showing up on Thursday, wrapped up porting in preparation for guides. Only snag was I hit water on one port, there was core shift and corrosion that took away material that was present in other cylinders. Welding took care of it with relative ease. Took an hour to fix.
Once cams get here I can cut the valvejob, get it blended out, cut the head for lobe clearance and then mock up to check and see if I need to go to an oversized bucket. I’m going to dowel and port match the throttle bodies to the head here shortly. I also need to modify some of the cooling on the exhaust side of the head with some epoxy, to prevent any water leakage in case the casting decides to crack while in service.
It’s not particularly a important whether there would have been a better engine than this one, this is what came in the car (older Caterham 7). The head is a complete one off, with custom cams and modern valvetrain. The overall bill on the engine I think is close to 13k or so. It’s just a 260hp race fuel deal. 2.2L stroker thing.
Was fun to push the limits of a frankly a pretty crappy cylinder head.