I have a S5 TII, but my rear iron is bad. Is it ok to use a S4 rear iron with a S5 front one?

 

bump

 

No, the spark plug holes are spaced apart more on s4 housings.

 

Ive heard a lotta bullshit going around about housing swaps.

are front/rear housings the same on a S5 TII if emissions isnt an issue?

 

I was talking about the irons... or should I call them the end plates?

 

what he was saying is that the waterjacket is different on the series IV. The s4 housings have further apart
spark plugs, so the jackets on the irons would have a slightely different shape around the spark plug holes

 

really? that odd...the rebuilt kits are for 86-92.....hrmm

 

ohhh thx for the responses! DAMMIT!!! that means I need to find a S5 rear iron.

 

are irons and housing swapable between motors of the same series? Such as s4

 

oops, let me clearify. Are the front and rear housing able to be swapped between engines. Could I take a front rotor housing from an s4 and use it as a rear rotor housing in a different motor?

 

I don't think there would be any problems, the o-ring would be the same shape since all of these engine are the same epitrochoid shape.
I've never tried though, so I'm not sure.

 

My bad lol. Wasnt really paying that close attention. Usually when someone asks about mixing **** its the housings not the end plates.

 

It's cool.

Is anyone positive it'll work?!

 

I think it should work especially since the rebuild kits are universal for the 86-91. But since you have both the motors just compare them.

 

The rebuild kits should be similar. The gaskets should all match up because the housings are the same size. The waterjacket may be different though(not match up correctly). This is ust my reasoning someone tell me if this is my *** talking or not?

 

Thanks, I guess I just need to know if the waterjacket lines up... Anyone?!

 

Can ya'll stop guesstimating and give a staight answer...someone go and line up the pieces and see!!

Ya'll rebuilders out there have to have come across this problem...ohh wait I believe this topic has been covered before...SEARCH!!!!

 

Searched... didn't yeild any finds. All the other topics talked about rotor housings.

 

Bump

 

Yes you can swap front, rear or intermediate housings between any year model engine from '86-'91. They are all interchangeable. So yes you can use an S4 end plate on an S5 block. The rotor housings can be interchanged between the S4 and S5 but you would have to swap the out in pairs and not mix and match due to the spark plug location differences. You could even use 3rd gen rotor housings just don't interchange the other 3rd gen parts unless it is an entire swap. I hope this answered the question.

 

Thank you rotarygod! Now I just have to find a front iron!