Where would you buy your head set/bolts from?

[Acheron]

Having a look around, ebay seems an obvious choice, is there much difference in quality between this type of stuff, the stuff at the local engineers and the dealers? is it safer to go to the stealers for these kind of parts?

On a side not, my pressure test showed no cracks, so i have no idea where the problem lies, im guessing maybe inlet manifold.

[Wing Commander]

Online I'd use somewhere like www.buypartsby.com

In town, try eurocarparts or another motor factor

I got a set for a punto for a tenner. Happy days

[Liquid Knight]

Local part slingers usually. eBay can be good but can also be cheap crap from China that takes ten days to be delivered and substandard quality.

[MX7]

Main dealer. For the small saving, it's not worth risking low quality bolts in my opinion.

[Chicane-UK]

Main dealer - always - unless there was a compelling / proven aftermarket set which were held in good regard.

ARP head bolts for the VR6, for example, are re-usable and not stretch bolts like the OE ones. And are able to cope with a lot more power should you decide to force feed the motor