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Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 1:13 pm
by WHTGESIG
Hi Guys

I have an 1978 Ge Sigma that im playing around with, i want to do an engine conversion 4g63 or similar in a budget of around $5,000 with me doing the work myself.. My Question to you guys is with that budget what is the best legal power productive choice??

Ive searched around on the site but with so many options its a bit confusing..Eg mixing and matching heads to Blocks etc

Regards
James

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 2:30 pm
by Scorpma82
4G63 SOHC with Carby/ies

Oodles of Aftermarket goodies for these engines.......they are the same capactiy as the Astron 2000cc (which these cars came out with from factory) but they are significantly lighter (I've heard as much as about 40kg's)

AND....if ur lucky....it will bolt up to the gearbox you already have in the car

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 2:46 pm
by Taz
I currently have a 4g64 dohc engine for sale. Wideblock 2.4l with a DSM twin cam head freshly reco'd for 500.was going to boost it and put it in the lc but have gone a different direction. Even Na it would be a weapon. Food for thought

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 4:57 pm
by stealth
Be careful with this !
What you need to work out is what you want to achieve here
Yes there are many options for the 4g63 BUT it depends how you want to go about it
What 63 are you planning on ?
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 5:00 pm
by Scorpma82
I think that's the original question now that I've reread it

What engine/gearbox combo is in the car now?

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 6:45 pm
by WHTGESIG
Hi guys

I'm going to start with the 4g64 Dohc that Taz has for sale in this thread... It's a wide block with a reco Lancer Dohc, my only concern is the 7 bolt crank shaft??

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 6:50 pm
by WHTGESIG
This to start playing with

4g64 twin cam engine on Gumtree http://www.gumtree.com.au/s-ad/1093055278

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 6:51 pm
by Scorpma82
Stick with the carbied '63 or '54 and u could do ur entire driveline with ur 5k budget

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 7:16 pm
by stealth
Good luck with the budget !
You should start a build thread for all the questions that you will have
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 7:17 pm
by WHTGESIG
Hi guys

The car has a 2.0 auto..
What gearbox and flywheel can I use with the 7 bolt crank?

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 7:42 pm
by stealth
Triton 4g64 5 speed
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Thu Oct 29, 2015 8:07 pm
by WHTGESIG
Cheers Stealth... Looking on ebay and the shift point is on the side on the triton box... So im looking at b2600 boxs at the moment...

Re: Ge Sigma eng conversion

Posted: Fri Oct 30, 2015 6:57 am
by stealth
I don't know what you are talking about, unless you are looking at a l300 box
The triton gbox is the best option you have
And you need the 7 bolt flywheel for it to work
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Fri Oct 30, 2015 7:29 am
by Scorpma82
WHTGESIG wrote:Cheers Stealth... Looking on ebay and the shift point is on the side on the triton box... So im looking at b2600 boxs at the moment...

At a guess......I'd say he's referring to the linkages used on these boxes

Re: Ge Sigma eng conversion

Posted: Fri Oct 30, 2015 8:24 am
by WHTGESIG
Yea my mistake I was looking at the L300 4G64 gearbox.. I'm thinking the triton will just have the shifter on top..

Re: Ge Sigma eng conversion

Posted: Fri Oct 30, 2015 9:10 am
by stealth
Cool cool
Sounds more like it
Get the flywheel and starter motor , that go with that gbox so everything fits
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Sun Nov 01, 2015 5:22 pm
by stealth
Turns out I found one in my shed, so if your keen
I got a complete g/box , no flywheel to suit a wide 64 $500
Pick up gold coast
Cheers stealth

Re: Ge Sigma eng conversion

Posted: Sun Nov 08, 2015 7:05 pm
by WHTGESIG
Hi and thank you... I'm going to look for something local..

Cheers
James