Probe 2.0L Head swap

[akhilleus]

yeah...i could have hc pistons and my own head worked for that price. And i saw that head for auction too but i was a couple hours late...damn.

 

[green MP3]

head install

I just put together an engine for a 97 mazda 626 an i believe is the same exact one for the ford probe.
I used a 2002 Protege block an a 626 head and the only difference i saw was the cam with the gear to drive the distributor and the lifters were different but the rest seem the same and well the car is running great so this proves that it works fine. i don't see why it wouldn't work with your protege block , besides if you are going to have it done at the machinest you can do anythig there. Also the 626 has 2 guides at the head while the protege only has one which it sucks when you have to install it back in the block.
i am going to try my protege spare head in to the 626 block to see if it fits perfect but i am 99% sure it will.

Green

 

[70]

The 2000+ 626 head is the J-spec/E-spec Protege head. Just with different cams.

The intake valves are different between the Probe and Protege head. Bigger in the Protege.

A 626 head would be an easier swap. But is pointless if you can find a cheap Protege head used.

Part numbers blab bla bla...TheMAN said so.

 

[akhilleus]

yeah good point i will look into that. A protege head is kinda expensive..the recyclers i talk to wanted alot for one and didnt want to part it...the 626 might be easier to find..i will check btw what is the difference between the j-spec/e-spec head and the usa-spec?

 

[soulstylee]

Whoa, Ok first off '93 - '97 Probe/626/MX6 engines are FS-02. We all have distributor, whereas your car does not. Your engine is the FS-DE.

Whomever supplied this information to you is misinformed, or trying to screw you.

I'm building up a FS-DE to drop into my 626. It's going to be a huge pain in the ass, I need to swap the ECUs and wireharness. I hope it works. Everything will bolt up, it's just a matter of tuning it properly.

 

[green MP3]

humm.......

Whoa, Ok first off '93 - '97 Probe/626/MX6 engines are FS-02. We all have distributor, whereas your car does not. Your engine is the FS-DE.

interesting!!!!! First off you are correct about the engine been a FS 2 on the 626 and yes they use a distributor but you are wrong about other things......

The FS-DE has a knock sensor while the FS 2 does not and the components on the 626 are not as good as the ones in the proteges but everything fits perfect my friend.

The head is the same as far as dimensions,of course it has a distributor cam gear and the hole for the dist. which it can easily be tap with the original cap from the FS-de. Now what you want to do is harder cause you want to go distribuless like the Proteges so you need to change pretty much everthing but I did not do that to my friend's 626. I took the knock sensor out of the block(FS-DE 2002) and placed the 626 head with the original cams and distributor. put it back on the car and started right up.
as simple as that. the car is running like new again,actually better than that and everybody is happy. I am not the kind of guy that believes in using only specified parts for each vehicle.i am custom made and always try parts from other manufactors that use the same or similar set -ups. how do you think i got the oversize valves for my head, (they are from a car of different brand ) since noone makes them for mazda yet. you will be surprise about how manny manufactors use the same stuff(in size or fittings) that mazda uses only they are better in other cars like the toyota etc.

respectfully

green

 

[akhilleus]

wow...soudns intersting but i figured that the modifications needed would exceed the practicality of the situation. Suppsosdly the 2000+ has a distributorless ignition so the distributor drive shaft is filled in. But since i am aiming for max flow and the older 626 arenta s worked it would kinda defeat the purpose unless there is an advantage performance wise to another cars cylinder head...626..probe..etc.
But i find the different valves to be very interesting...do u need different valve springs? are the toyota valves larger and if so can our valves be bored to match...thereby increasing flow. But what are the effects of this...compression overlap..vlave timing..etc..fill us in

 

[green MP3]

here is a pic of the valves

/members/green MP3/dsc00579.jpg

 

[melicha8]

The egr port is in a different location. I'm not sure though if that goes in the TB or the head

 

[twilightprotege]

egr goes to the intake manifold

 

[soulstylee]

Re: humm.......

Whoa, Ok first off '93 - '97 Probe/626/MX6 engines are FS-02. We all have distributor, whereas your car does not. Your engine is the FS-DE.

interesting!!!!! First off you are correct about the engine been a FS 2 on the 626 and yes they use a distributor but you are wrong about other things......

The FS-DE has a knock sensor while the FS 2 does not and the components on the 626 are not as good as the ones in the proteges but everything fits perfect my friend.

respectfully

green

Never said they wouldn't fit. I know they will fit.

Also your blocks have higher compression pistons, another little difference.

 

[akhilleus]

he was talkin to me i think...