Mar10n

I bought some ported 243 heads that have a new valve job for stock valves (1.55/2.0). But I need some new valves.

Can I put some bigger valves on this stock worked seats WITHOUT touching the seats again?
I dont want to send the heads to the machine shop again.

1.6 / 2.02?

Darkman

iTrader: (2)

I think not.

garygnu

no ,the angles ground on the valve seat won't match with the angles on a bigger valve head.

studderin

iTrader: (28)

not only that but that would flow LESS. I bigger valve head in front on the same size opening just gets in the way more.
A valve head in not something that adds flow.