Sigma-galant.com

Have you wired up the sense wire correctly?

Your likely only option is custom as anything from a sigma/l200 wont fit without a major rebuild due to the tight fit between gearbox and steering box, which would probabely cost more than custom. The other problem you might have is that there were 2 different exhaust bolt patterns for the 4g52 GTO ...

Have you checked the timing?

With that thermostat housing in the photo it looks like it is for an Astron.

They are quite different : http://www.nzgaskets.co.nz/default.aspx is really good for checking out this sort of thing. Early 4g63 SOHC http://www.nzgaskets.co.nz/SeeSetImage.aspx?ImageLocation=JC493.gif&SetCode=JC493 Early 4g63 DOHC http://www.nzgaskets.co.nz/SeeSetImage.aspx?ImageLocation=JC795...

The evo4 manifold needs the holes for the injectors in the manifold to be blocked(jb weld or welded) and the flange needs to be trimmed at the front so that it doesn't hit the back of the timing gear cover. The top of the flange also has to be trimmed so the injectors can be fitted into the head. On...

Evo 4 inlet on a RVR small port head (same as an Evo 1-3 head).

If you shorten the strut tubes you will have to get a cert. If you use shorter travel shock inserts, appropriately modified springs and you still have sufficient travel you wont need a cert (but the police will still give you a hard time if at the wrong place at the wrong time). The Autolign guys pr...

Matt, are you willing to get your car certified? If so then go with a set of weld on coilovers in the front. If not you could use shorter shock inserts and cut and reshaped/reset lowering springs, but if you go this way make sure you get it done properly, talk to the guys at Autolign (I have used th...

I've used Scotch Super 33+ vinyl electrical tape and its pretty good to use. I would avoid self amalgamating or cloth tape at all costs as both will be a nightmare to repair if something goes wrong. For the ultimate in easy repair a good quality non adhesive loom tape, but I found that it's very har...

Give these guys a go http://www.dashboardrestorations.co.nz/ . They are supposed to be pretty good, but I have not used them personally.

The clamp shown above is not original, but just a generic clamp. The originals only suited smaller batteries.

Can someone show me what twin dcoe webbers look like on a g63?

If you look closely at the engine bay photo I posted above you will see a 4g63 with twin sidedrafts that look like dcoe webbers.

This is twin sidedrafts on a custom manifold fitted to a sohc 4g63 http://thumbnails28.imagebam.com/8179/3e7d4a81789240.gif which was in this http://thumbnails31.imagebam.com/8179/9416df81789241.gif If you went the custom manifold you could fit these http://www.jenvey.co.uk/home/twin-throttle-bodies...

Here is the factory battery tray/ heat shield.


The radio face is plastic under the chrome and it's quite a specialised job to re-chrome. It can be very difficult to strip the old chrome off without damaging the plastic.

Yes the battery support frame is spot welded in place, but the actual factory tray/heat shield just sits in/on the support frame.


This is just the support frame. I can take a photo of the factory tray/heat shield if you like.

I saw a M8 head at pickapart Mangere today in a Magna so they are definately in NZ.

I'm not sure that those are genuine original flares as the other set the seller has up for auction at the same price are reproductions, see http://page8.auctions.yahoo.co.jp/jp/auction/h171542241 Usually if they are originals there will be a photo showing the underside with the strengthening ribs at...

In NZ some Sigma and L200 came with 4g63 in rwd and were narrow block.

The centre consoles are pretty lose in the car if the original radio has been replaced. The radio dials fitted through the the metal bracket and console with nuts on the dials holding the two together. I can't see how badly hacked the metal support frame is in the photo as the steering wheel spoke i...

My only suggestion is that you need to vibration isolate the pumps from the body work so the noise/vibration of the pumps isn't transmitted to the cabin as that facet pump can be very noisy if they aren't isolated properly.

On the GTO I have used L200 clutch cables with the part number MB527075. These are about 150mm longer than the standard part.

If you haven't read this article it is worth reading http://www.motortecmagazine.net/article.asp?AID=1&AP=1 as it has some interesting info on the potential of the 4g63 heads.

Jason, I think you are over estimating the factory non-turbo output of the dohc 4g63 or are using the wrong units. The dohc 4g63 engine in the 1989 Galant output 145 ps (106.65 kw) / 6000 rpm while the AMG version output 170 ps (125.04 kw) / 6750 rpm. Some of the later high spec engines output was 1...

I also had the same problem, but with the rwd waterpump modified to clear timing belt and align pulleys. http://thumbnails38.imagebam.com/20927/dc730e209267489.jpg Something else to check is the hood clearance with the timing cover as I found it to be an issue with the hood strengthening brace in th...

Small port head will have better inlet flow velocity give better cylinder filling at lower engine revs resulting in better lower rev torque. The smaller ports also have better approach to the valves meaning better flow on the short radius side of the valves. The result is a much better, low rev engi...

Increased the spring stiffness and/or is the front suspension bottoming out? Either case will shorten the life of strut top rubber. As it appears that you haven't driven with that engine I'd say that they were shagged before you put the v6 in and the extra weight is just opening up the cracks in the...

The DOHC is definitely an interference engine, but I'm not sure about the SOHC.

I would personally would avoid a 4g5x in a 16L as 4g52 from a GTO is a very tight fit length ways due to the shorter engine bay in the 16L and the later 4g5x would be even worse having an even longer rocker cover. If you wanted to approach the swap as an on-going development project the simplest fir...

Another option to consider is a 4g92 mivec see http://www.mivec.co.nz/forums/viewtopic.php?f=44&t=7429. There's more info in this link but you must be a member to view http://classiccolt.forumcircle.com/viewtopic.php?t=877. Also, a 6g72 can fit in with a little work see http://classiccolt.forumc...