What is this engine???

[A112H]

Can anyone tell me what this engine is?
Look closely, you will be as confused as I am.

[Scorpma82]

Astron 1850cc?????

looks like a Saturn style rocker cover bur has astron on it..

Do you know what car it's in???
I'm guessing it's Japanese......judging it on being RHD, the batery plate is on the RHS and the qud circular headlights

[A112H]

It's a GTO I think. What do you make of the Saturn dizzy position too?
Does a Astron rocker cover fit on a Saturn?? I am not sure but wouldn't think so, Astron would be much bigger.
I thought it was a 4G35 (1700cc) but then noticed the Astron on the rocker cover???

[Scorpma82]

Got me stumped.....i'm still thinking some form of import 1850cc

Yeah your right about the dizzy.....it's some fom of hybrid of Saturn and Astron

This engine could be have been made at a time when Mitsubishi/Chrysler were phasing out the Saturn and bringing in the Astron

For all we know, this particular engine is a working prototype, in a company car, feasability study...could be anything!!!

[C_Fernance]

Non-Balance shaft Astron

[A112H]

Ah, you might be onto something Chris, I have never seen a non balance shaft Astron, i just figured they were the same but that could account for the dizzy placement.

[BlueThunder]

this is from the same series of pictures and says 4g35:

[simon]

Hi I think its a non balance cam astron possibly 2000 gto gsr.We were told the head ran slightly bigger vavles,but not sure if they did.Is this what is called an astron 80?

Simon

[A112H]

There are some weird things going on there, that's for sure.
Check the oil cap, it is central on the rocker cover and in line with the rocker cover bolts, on an Astron they are offset.
This is cottees Astron80 ( I think)


Also, check the water pump. Doesn't look Astron or Saturn as we know it. WEIRD.

[Cottees]

It is a pre-Astron 80 Astron. As in before they put in the balance shafts. Will post pic I have of an original Astron when I get home.

[75glnt]

It's a gb style front.. That's a definite! And I'd say 1850??

[77GDWAGON]

It is a pre-Astron 80 Astron. As in before they put in the balance shafts. Will post pic I have of an original Astron when I get home.

This is the true astron 1 motor. They started with the 4G51 1850 then came the 4G52 2000. These came in the gc/gd style galants and gto,s. Mitsubishi then installed balance shafts and had to move the dissy to the side of the head and called these astron 80. Think this may have happened in 1980 hence the astron 80.

[A112H]

Well that is disappointing really. It is meant to be fitted with a 4G35, where the hell am I going to get a 1700 Saturn from??

[Cottees]

Found these pics a while back.

[A112H]

Cool, nice and clean

Do we know if the 4G51's were the same?

[Cottees]

I would say it would depend on how old the 4G51 is. The engine in the pics was in an auction last year some time, NOS on a pallet. Think it was in Japan.

[A112H]

WOW, would have been a cool pick up if it was local.
These pics are from an A55C GTO

[simon]

Has it got to be 4g35 or would an astron 1850 or 4g62 suit.I know where there is a 35 ,possibly 1770,no5 cam,45 webers,etc
It might take a bit of talking to get him to sell it though.
simon

[A112H]

The current engine is a good one so that will stay in it but yeah, the id tag says 4G35.

[Cottees]

Looks like 1972-1975 is when the Astrons were made, and changed to Astron 80 in 1975.

http://en.wikipedia.org/wiki/Mitsubishi_Astron_engine

[Cottees]

http://www.ebay.com/itm/Mitsubishi-74-7 ... 0730030990

[shelbygto]

its a 2lt gto engine . i had 1 of these years ago , just a bigger version of the saturn . mine had the dizzy hole blocked up with a l8ter head on it from a astron 2000

[A112H]

Excellent, thanks for that Shelby

[DriveBy]

Found this.....

http://www.hyundaiperformance.com/forum ... hread.html

[Natedog]

Well that is disappointing really. It is meant to be fitted with a 4G35, where the hell am I going to get a 1700 Saturn from??

I got lucky enough to get one in my car! However, only diffence is piston size, just bore a 4g32, unless your going for originality. I recently put a 1.6 back into mine due to some bad luck on my head, and finding a cheap 1.6 with 0 miles on it since rebuild.