v8 headset which one ????

[dixiebabes]

Can any of you guys pass me a link for a headset for a 1983 series one 350i off ebay. I have looked and there are quite a few and I'm not quite sure the one I need just in case I do need one afterall thanks lads.

Dix

[carob]

Rimmers dix give em a shout.

Rob

[convert]

I've always used Payne sets, but I've never had to use one for a V8 (touch wood)

[chedder]

convert said:

I've always used Payne sets, but I've never had to use one for a V8 (touch wood)

Another Vote for Paynes...top stuff

Dix before you strip down, have you had the coolant checked for hydrocarbons? This would confirm that the there is problem with head gasket/porous/cracked head, saves a lot of time and money if there is no need for a strip down.

Chedder

[dixiebabes]

Not yet tony but I will be on friday, just covering all bases early doors good prep is always top of my list let's just hope i don't need it thought I still have high hopes its something daft and not the head gasket. I'll get there in the end hopefully cheaper than expected

Dix

[tempus]

Just to complicate life Payen do steel and composite head gaskets,old things like mine are quite happy with a composite set but if your going to Santa Pod with it you may prefer a steel set. CG915 fits the 30A series engine.

[TVRleigh_BBWR]

I always use 10 bolt Elring ones, and just leave the bolts on edge off, as they can cause problems.

[dixiebabes]

TVRleigh_BBWR said:

I always use 10 bolt Elring ones, and just leave the bolts on edge off, as they can cause problems.

Edge off what's that mean leigh? Sorry for the incompetence

Dix

[Wedg1e]

dixiebabes said:

Edge off what's that mean leigh? Sorry for the incompetence

Dix

The heads have three rows of bolts clamping them down: two rows are under the rocker cover and the third set (at the exhaust side) are exposed. Some (race-tuned) engines have been known to have sealing problems caused by the additional clamping loads of the outer row of bolts so some builders prefer to leave them out. On a standard-tune engine it's probably not a problem (I rebuilt my 390 engine in 2001, I guess that would have been regarded as a 'tuned' engine in its day ) and ten years later I haven't noticed any problems in normal road use. I bet more RV8s have them fitted than not.

[dixiebabes]

Right now I see cheers leigh.

Dix

[TVRleigh_BBWR]

Wedg1e said:

The heads have three rows of bolts clamping them down: two rows are under the rocker cover and the third set (at the exhaust side) are exposed. Some (race-tuned) engines have been known to have sealing problems caused by the additional clamping loads of the outer row of bolts so some builders prefer to leave them out. On a standard-tune engine it's probably not a problem (I rebuilt my 390 engine in 2001, I guess that would have been regarded as a 'tuned' engine in its day ) and ten years later I haven't noticed any problems in normal road use. I bet more RV8s have them fitted than not.

All the later heads did not have the outer row, as it was a known problem of causing uneven loads.

[rev-erend]

The decision should be steel or composite head gaskets.

V8 developments supply top kit !

[dixiebabes]

Steel or composite what do you lads recommend then? I have heard good reports of composite gaskets.


Dix

[TVRleigh_BBWR]

As said I'll only use Elring Composites, bit more expensive than some but worth it, esp as you are not going to want to have to redo them.

[Wedg1e]

TVRleigh_BBWR said:

All the later heads did not have the outer row, as it was a known problem of causing uneven loads.

Maybe I'm just lucky then

[rev-erend]

Steel being thinner give a higher C/r and more power (a bit)

and composite give better sealing abilities.

[dixiebabes]

Composites it defiently is then!!!!!!!! any links for such headsets/Head gaskets boys?


Dix

[Wedg1e]

dixiebabes said:

Composites it defiently is then!!!!!!!! any links for such headsets/Head gaskets boys?


Dix

What's the plan then. round to your place tomorrow night for spannering and beers?

[chedder]

Dix, composite H/G on mine, just be aware that due to the thicker material;
1)You will lower the compression ratio by upto .7 (ideal for Supercharging)
2) Hydraulic lifters will need shimming.

Tony

[Wedg1e]

Of course you may already have composites fitted... I used them on my rebuild in 2001, still working fine! Took the 390 up and down our private driveway a few times tonight to annoy the neighbours...er, I mean make sure that the brakes worked etc. in advance of Saturday's MOT...