Upper Intake compatibility
 

Hey guys i looked around and cant find much info on this topic, so I apologize for any repeat of discussion.

I was wondering if the 6 port gslse lower to upper mounting bolts were the same as the 86 to 88 fc.

I want to use the racing beat weber upper intake manifold on my fc lower, when i compare a picture of the gslse gasket to the fc gasket i have, they look just about the same. yes i know the website says 84-85, but i know sometimes theres wierd grey areas. Any info is helpful thank you :)

here are some pictures and links of my situation

Link to racing beat manifold:
https://www.racingbeat.com/RX7-1975-1985/Intake-Components/18100.html


https://cimg5.ibsrv.net/gimg/www.rx7...15507d226f.jpg
.

https://cimg3.ibsrv.net/gimg/www.rx7...da38334bb7.jpg

i was going to say no its different, and i think it is, but really how different?

All i really need know is if the bolts and holes match up decently enough to mount it so i can run a weber dcoe.

Ive decided to go ahead and buy a gslse intake gasket, i will get back to yall if it works, feel free to add any input :)

If it doesn't work let me know and I think I might be able to help you out.
I don't normally hang out here so @ me or something.

I don't believe so, here are the gasket photos from Mazdatrix:
S4:
https://cimg7.ibsrv.net/gimg/www.rx7...3b10611c7f.jpg

GSL-SE:

https://cimg1.ibsrv.net/gimg/www.rx7...2b5c1ab95b.jpg

those are the plenum to the upper runner thing,

https://cimg5.ibsrv.net/gimg/www.rx7...3836ff860b.jpg
https://cimg6.ibsrv.net/gimg/www.rx7...97d96e9857.jpg

i do know the S4 to S5 the rear most stud is different, so we'd just pull it out and run without it, 4/5 would be an easy A when i was in school

Yeah heres the gslse gasket from atkins rotary on my s4 manifold. I did end up finding someone on Reddit by some miracle that had one of the discontinued racing beat weber manifolds for 6 port fc.
https://cimg1.ibsrv.net/gimg/www.rx7...52109177ef.jpg