+1mm oversized valves.. Worth it?

[BeirutTaxi]

As per the title, has anyone installed oversized valves? If so, are they worth the effort?

Kind regards,

Matt

[stevieturbo]

BeirutTaxi said:

As per the title, has anyone installed oversized valves? If so, are they worth the effort?

Kind regards,

Matt

That's a vague question hitting about 100/100 on the vague scale.

[DVandrews]

Only if you make commensurate modifications to the head, enlarging and re shaping of the valve seats and throats and un shrouding of the combustion chambers. If you just cut the seats and install them there is a good chance the head will flow less air.

If your engine s seriously undervalved you could see some good improvements, more so if other mods are made to the engine

Dave

[Sardonicus]

DVandrews said:

Only if you make commensurate modifications to the head, enlarging and re shaping of the valve seats and throats and un shrouding of the combustion chambers. If you just cut the seats and install them there is a good chance the head will flow less air.

If your engine s seriously undervalved you could see some good improvements, more so if other mods are made to the engine

Dave

and of course better profiled .... usually

[Honestherbert]

Depends on engine, spec, objectives etc? bit to much of a random question tbh!