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bazil
18-12-12, 02:38 AM
So my XE head requires new Exhaust valves as 7 of them are bent.

Where should I buy valves from?
eBay at £30 for 8 Trenchii ones

Or the likes of QED at £72 for 8?

I'm not doing any head work or going for more power, just standard so I'm not looking at getting oversized ones.

The place that is doing the new guides will fit the valves for me if I supply them

16v Nova Kev
18-12-12, 07:49 AM
Is pistons and components still open?

Iain
18-12-12, 08:58 AM
I got Mahle ones from Autovaux at about a fiver a piece. They seemed OK.

MK999
18-12-12, 11:31 AM
We had some Vaux valves delivered from Trechii when I worked for an engine reconditioner last year, and we were surprised to see they were a really decent make for what they cost. (I forget which make tbh)

MattBrown
18-12-12, 11:32 AM
Just buy a decent head, by the time you fook about putting valves, guides and maybe seats in, you could have bought 5 good GM heads.

IMO its only worth saving if its coscast and your going down the big head route.

mowgli
18-12-12, 11:45 AM
bazil... do you really think qed make valves?? didn't think you did.. they unwrap them & put them in their own packaging, like most tuning suppliers do.

MK999
18-12-12, 01:35 PM
£8-9 a valve to public is about going rate, so it's not like they're boxing them up as magic valves, they're just supplying AE or whatever's available.

Mazz
18-12-12, 04:35 PM
Just buy a decent head, by the time you fook about putting valves, guides and maybe seats in, you could have bought 5 good GM heads.

IMO its only worth saving if its coscast and your going down the big head route..

What a load of crap..why buy a potentially scrap head(s), when you could just spend £100 and know you've got a good'un..

Lee H
18-12-12, 06:43 PM
For what its worth the standard XE exhaust valves are sodium filled whereas the cheapo replacement ones aren't. When I bent valves I stripped them out of another head as assumed they were sodium filled for a reason.

dc1984
18-12-12, 06:55 PM
Simples bazil, just buy my c20xe from the disastra

mowgli
18-12-12, 08:28 PM
For what its worth the standard XE exhaust valves are sodium filled whereas the cheapo replacement ones aren't. When I bent valves I stripped them out of another head as assumed they were sodium filled for a reason.

and how did you know that the ones you stripped were genuine??

Lee H
18-12-12, 08:35 PM
and how did you know that the ones you stripped were genuine??

They are stamped GM near where the collet fits.

mowgli
18-12-12, 08:48 PM
ok.

Mazz
19-12-12, 12:25 PM
lol

Jon_nova1
19-12-12, 12:47 PM
They're sodium filled to help with heat dissipation from the era where it was designed as a race engine