Hey peeps. putting a few bit on car (mk1 occy vrs) and hopefully when finished will hit the 280-300 bhp mark.

My questions are, i'm putting better con rods in a doner engine im building but wondering about the head. I'm gonna put new oil stem seals in head but will i need to uprate anything else in the head for that power?

The other thing is, after searching i realise for this power 6 speed is not worth the hassle. But my gearbox is leaking oil and needs replaced. So was thinking of 5 speed diesel box as i understand theyre stronger but which one or stick with standard vrs as can get the box from the car im getting engine from. Long winded but that is all.

the head can be flowed ported and polished, you can fit hardened valve seats/springs with a 3 or 4 angle valve job and uprated valves.

I recon for that power though the stock valves and seats should be ok, perhaps spend the money on porting polishing and a 3 angle valve job.

i understand the port and polish but lost with the angle valve job. where's google lol