looking for info about this inline hemi 6 cylinder head

[bill jones]

---I have this head porting project but have no idea what the head fits and what it's designation is yet.

---if anybody knows anything about what this fits and possibly any flow numbers I'd appreciate some story about it.

---also would like to hear something about this head being used maybe in a stock versus modified condition.

---the sparkplugs are all tilted in two different directions---4 lean one direction and two lean the other direction.

---the end pair of cylinders are opposite to each other---and the two middle cylinders are opposite to each other

---I don't have any valves for it yet.

--valve guides look to be 8mm---about .314/.315" or so

thanks,,,,

inline 6 hemi---chamber side---lighter.JPG

inline hemi 6---top angled sparkplugs.JPG

inline 6 hemi---5 cylinders have these cracks.JPG

inline 6 hemi---intake flange.JPG

[peejay]

Looks like a Toyota 5M-GE cylinder head.



The combustion chambers and ports looked very "Toyota" to me, like an extended 22R, but I got thrown off a little bit by the lack of cam boxes. Also, I thought all the DOHC M engines were 4 valves per cylinder. Oops!

[midnightbluS10]

5MGE came with 161 hp and 169 tq in its final iteration. Could be found in '82-'86 Toyota Supras in the US.

[dannobee]

Stan's site shows intake flow at 10mm of 178 and 252cfm, stock vs ported.

One of my customers years and years ago had one of these in a Cressida (stock). At the time I remember how well it ran. Considering the stock GM crap I worked on at the time, not a surprise.

3.27" bore x 3.35" stroke.

[bill jones]

--OK--that was what I needed--thank all you guys.