head studs or headbolts what's the difference
 

can someone tell me about undercut bolts/studs and standard bolts/studs
i mean i guess one is shorter than the oter but why??
can anyone shed some light on this.

No need it's irrelevant.

You want the standard sized ARP studs.

That's all you really need to know.

coolant hoses.
 

hi bill, supramacist,

can you send me some pictures of all the coolant hoses if possible,
thinking about replacing them. not sure how many there are, cheers.:)

Upper and Lower radiator hoses.
Upper head hose right at the rear of the head behind the spark plug galley.
Lower block hose back behind those pesky starter bolts.

Those are the main ones right off the top of my head.

Hi Andy,these are from the EPC DVD (Electronics Part Catalogue) this should cover most of them. The numbers on the drawings are not the Toyota part numbers, they are just figure numbers. When the EPC software is installed you just click on the figure # and then click execute and up pops the Toyota part # and price. Please note the drawings are from a 7M-GTE UK model.
http://i17.photobucket.com/albums/b56/cirgriff/1003.jpg
http://i17.photobucket.com/albums/b56/cirgriff/2004.jpg
http://i17.photobucket.com/albums/b56/cirgriff/3005.jpg
http://i17.photobucket.com/albums/b56/cirgriff/4006.jpg

Missed one, properly the most likely to need replacing is in red, this connects to the back of the head.
http://i17.photobucket.com/albums/b56/cirgriff/5007.jpg

vsv
 

cheers bill,supramacist what does the vsv do? and stand for.

I don't know without looking it up.

Do a search on vsv valve.

Vacuum Solenoid Valve: part of the EGR unit (Exhaust Gas Recirculation) as it says on the label, it recirculates a percentage of the exhaust gas back into the inlet manifold. All to do with lowing exhaust emissions, some UK members have removed theirs, as you probably know vehicles registered before 1992 in the UK are allowed a higher Nitrogen Oxides emission levels that’s also why many remove their cats.
Back to your pipes, I would suggest you replace the ones that are difficult to get at and look inexpensive, there are a couple of small 90? elbows one on the exhaust side rear of the head and one at the front just behind the thermostat housing. How does that large turbo concertina pipe look ?, the one that fits to inlet side of the turbo with a few pipe coming off of it.

EGR UNIT
http://i17.photobucket.com/albums/b56/cirgriff/EGR.jpg

bill
 

hey bill where can i get arp head studs from, i can only seem to find them in the usa?