wardy18 33 1 Cars Posted November 1, 2007 Ok so im still learning about engine and internals so please help me When you fit 83.5mm Pistons to have to fit 83.5mm liners to match, same with 85mm and 86.6mm etc etc, does the Liner always have to match exactly the piston size. im asking because i was under the impression that pistons sizes for XU engine were 83, 83.5 then jumps to 85mm but i have found a company that supplies 84 and 84.5mm pistons too which i assume take the CC inbetween 1928cc and 2000cc, but what liners would you need for these!? The site is: www.forgedpistons.co.uk regards Simon Share this post Link to post Share on other sites
309PUG 2 1 Cars Posted November 1, 2007 Ok so im still learning about engine and internals so please help me When you fit 83.5mm Pistons to have to fit 83.5mm liners to match, same with 85mm and 86.6mm etc etc, does the Liner always have to match exactly the piston size. im asking because i was under the impression that pistons sizes for XU engine were 83, 83.5 then jumps to 85mm but i have found a company that supplies 84 and 84.5mm pistons too which i assume take the CC inbetween 1928cc and 2000cc, but what liners would you need for these!? The site is: www.forgedpistons.co.uk regards Simon Hi, You assume correctly, whatever piston size you opt for you must also purchase matching sized liners. Chris Share this post Link to post Share on other sites
wardy18 33 1 Cars Posted November 1, 2007 ah ok, strange how this company doesnt supply the liners aswel as the pistons then!! could do with finding out how thin the liners are for the 84mm and 84.5mm cause i ive been told that 85mm liners are too thin and so unreliable but the 84 or 84.5mm may be better!! Share this post Link to post Share on other sites
Batfink 201 Posted November 1, 2007 86mm no good then? Share this post Link to post Share on other sites
wardy18 33 1 Cars Posted November 1, 2007 86mm no good then? from what i can gather 85 is the biggest that can be fitted to a XU9 but are way too thin, you can fit larger but this mean machining of teh block and custom liners i think which is gettin expensive!! where can i source liners from?! Share this post Link to post Share on other sites
Batfink 201 Posted November 1, 2007 Miles (aka pugracing) used to be able to get them. Havent spoken to him about them for a while though Share this post Link to post Share on other sites
wardy18 33 1 Cars Posted November 1, 2007 am in contact with Miles now, thanx for your help Share this post Link to post Share on other sites
