Harris Performance Engineering NZ Ltd

4AGE 20 Valve head came in with a sinking valve issue. Valves now replaced with genuine supertech valve set and retainer set. Tidied up the cnc porting job to the shapes I prefer and put suitable chamber modifications in place to assist induction and combustion. Skimmed to volume and nice new Franklin Cams to go in should make this rally head nice and reliable.
Franklin Cams

Checking lifts at TDC to adjust cam timing on on an RB in a R34 GTR we are involved with. I cannot wait to see how this thing spools and boosts. Our cam pro plus computer program and cam doctor machine let us measure and specify cams very accurately and make setting cam timing a fair bit faster.

Been a busy day putting new seat inserts into an L28 head along with seat cutting and chamber mods to improve flow and combustion conditions. Fitting custom Manley valves to suit an aggressive fast road engine. Going to be running tripple sidedrafts. Should sound awesome and go just as well.