4.3 manifolds & Y piece ??

[Ducati0]

How do you know if the manifolds and Y piece are getting close to their end of life ? I quite fancy having them white ceramic coated, but don’t know if they are knackered.

It’s such a huge part of the under bonnet look and I have been spending past Few days detailing under the bonnet cleaning every part properly and feel the manifolds and Y piece will ultimately let the rest down.

Edited by Ducati0 on Tuesday 23 April 20:33

[bobfather]

Provided the weld at the centre of both 4 into 1 junctions are okay then the manifolds and Y piece should last well over 100k miles. There are problems achieving adequate adhesion, good surface preparation is essential. Grit blasting should give the coating something to bite onto.

[Ducati0]

I just wondered if there was a minimum thickness the metal needs to be to achieve a good quality ceramic coating. I would get them professionally coated, but wasn’t sure if the manifolds and Y piece were good enough or would last long enough to be worth doing.

[bobfather]

They don't wear out. There are two failure modes, breakdown of the welds at the centre of the 4 into 1. This happens randomly. The other issue is choking of the precast, not as common but it has happened to several owners. The metal is quite meaty, I very much doubt thickness would be an issue

[Moose v8]

Well my manifolds are original, 92 Griff. and the y pipe is wafer thin manifolds cracked been welded ceramic coating isn't cheap. Myself saving for Clive ford's manifolds. Stainless looks good just my opinion

[BIG DUNC]

On my 92 Griff they were wafer thin, very rusty, and started blowing at the headers.

If you ceramic coat them they will have to be blasted and if they are thin that may finish them off.

If this is just for cosmetic purposes you could take off what you have, clean them up and paint them. This is the cheap option.

The other option is to buy new ones. These could be stainless and/or ceramic coated.

[Ducati0]

Moose v8 said:

Well my manifolds are original, 92 Griff. and the y pipe is wafer thin manifolds cracked been welded ceramic coating isn't cheap. Myself saving for Clive ford's manifolds. Stainless looks good just my opinion

Does Clive have his own business making stainless manifolds and Y pieces ?
I would like to keep the exact same shape but stainless.

[TJC46]

Ducati0 said:

Does Clive have his own business making stainless manifolds and Y pieces ?
I would like to keep the exact same shape but stainless.

Here you go

https://www.facebook.com/clivefppa/

[BIG DUNC]

Clive’s are undoubtedly nice and some would say the best. There are, however, other suppliers of manifolds for our cars, some of which are more cost effective, and also look very nice.

[Ducati0]

Does anyone know the price for manifolds and Y pipe for a 4.3 from Clive ?

[Ducati0]

BIG DUNC said:

Clive’s are undoubtedly nice and some would say the best. There are, however, other suppliers of manifolds for our cars, some of which are more cost effective, and also look very nice.

Do you know what other company’s there ? So I can look at the options of the best and maybe little bit cheaper

[Dominic TVRetto]

https://www.actproducts.co.uk/

[TJC46]

Ducati0 said:

Does anyone know the price for manifolds and Y pipe for a 4.3 from Clive ?

Send him an email asking for a quote.

[Ducati0]

TJC46 said:

Send him an email asking for a quote.

Sent him a message on Facebook