Finally decided to pull the engine out and rebuild it. Is it worth doing the head up for performance or will it not give any noticable power increase? Will be adding extractors as well as i understand they help a bit.

depends what carby u want to run..
i rebuilt my g13ba,, bottom end rebuilt too factory spec as there was next too no wear in the bore, new pistons,pins, master engine rebuild kit from (suzisport) $650 included absalutely everything..
i had the head rebulit with new exhaust valves,reground cam,mild port job.
$400
with standard carb and exhaust was better but no great difference in power..
then i put a webber on it with a custom ported original manifold,extractors,2" exhaust,hi flow cat,, and wow what a difference, i can do line lockers with 31s and std diffs lol holds 100ks on the h,way no worries

so what im sayin is if u plan on runin std accesorries than do a basic rebuild,
but if u want power gains then modify the head and get some good bolt ons

oh yeah u can use toyota parts for the top of your dizzy as the pick up points are 4x wider.

p.s I SMOKE VITARAS LOLLOL

wow kewl thanks for that info il work it out later or just take your word for it when i jumped in my new zook it felt alot faster then my mates 1.6 on take off but it could be all wrong because its on stock tyres .. cant work out why speedo is out though maby its because of diffs maby hes changes the ratios ?

another trick is if u got the standard carby, take out the choke mechanism (butterflys) then put no 2 ( secondary) fuel jet into no 1 and drill out the secondary jet (from no 1) and pop it in secondaries.. but make sure u drill it straite.. makes a notisable difference on take off but u lose a few revs..

i would of done a build thread on my engine but at the time i didnt know of auszookers. and a second hand 1.3 was like $900 from a wrecker

dont want to knock ur suggestions on bigger "high compression" pistons,,
but the gain bye doing that is f****all compared too porting and matching fuel,spark,exhaust.. 1.3 bottom ends arent strong to say the least, so extra pressure on the bottem end isnt a good idea,, if u want more cubes rebuild a 1.6...
suzisport kit includes,, new pistons,pins,head gasket, water pump, all main and piston rings bearings, timing belt, every gasket possible,, and if your nice ,they will custom make a kit to suit your engine.. i was in mackay at the time and they sent everything for $650..

Really? That's news to me..... Haven't heard of many failing at all.

thats couse givin there age most of them have allready had a rebuild.
"quote" when buying a sierra if its at 200,000ks more than likely u will be up for a engine rebuild.. u might not have heard of many, but everybody complains of how powerless they are,, THATS BECOUSE THEY ARE FUCKED AND NEED A REBUILD..

They may be a little tired, most small petrol engines are after 200,000km... Not broken though, as they would be if they are "weak".

G16s however, I know lots of people with cracked blocks on G16s...

ummm nobody mentioned "failed " or "broken" bottem end ?? but hears a idea .. instead of helping this bloke why dont u guys just railroad his thread and start ur own conversations !! yes mate the 1.6 blocks are notorious for cracking.. thats why im sugesting to this guy to work his 1.3 a bit ,, as aposed to most people dropin in a 1.6

Well then describe your example of 'weak' as you related it to bottom end stress due to HC pistons which implies that they fail or are prone to failure in stock form...

Many yanks are running the HC pistons and are having very good runs out of them. Have yet to hear a story of HC pistons killing the bottom end.

Skyman you heard of any issues as such?

998cc weak 1.2 weak 1.3 weak 1.6 weak 1.8 better 2.0 better 3.0 better 4.0 strong 5.0 strong 6.0 strong... the bigger your pistons the less wall u have between your pistons to water,oil jackets.. so when something goes wrong ur chance of rebuilding are limited.. i built a 250/200 6cyl in a cortina using huge wiseco motorbike pistons the bore was so big i hid a extra radiator in the boot just to keep it cool. street regd on pump gas it ran 12sec flat down the q,mile (with wheel spin ) but i aint givin that combo away to anyone.. but hey what do i know about engines

1.3 bottom ends arent strong to say the least,

if u want more cubes rebuild a 1.6...

thats why im sugesting to this guy to work his 1.3 a bit ,, as aposed to most people dropin in a 1.6

ummm nobody mentioned "failed " or "broken" bottem end ??

instead of helping this bloke why dont u guys just railroad his thread and start ur own conversations

Many yanks are running the HC pistons and are having very good runs out of them. Have yet to hear a story of HC pistons killing the bottom end.

i want to know more about the cortina, got any pics?

please add it to the previous rides thread.