WTB supra 5 speed bellhousing - turbo / trimatic.

[panoz78]

From memory you can go from one pattern to the other
But cannot have both, It has something to do with the locating dowels & size of them.
In saying that it doesn't mean you couldn't put removable bushes/inserts in the dowel holes to get around it.
I also would like to have both chev & holden (trimatic) patterns on my bell housing ..
Think you'll find that all 304fi motors are chev pattern..
The dellows bell housings are cast with both patterns but only the one required is drilled with the dowel/bolt holes.

[Big Rob]

From memory you can go from one pattern to the other
But cannot have both, It has something to do with the locating dowels & size of them.
In saying that it doesn't mean you couldn't put removable bushes/inserts in the dowel holes to get around it.
I also would like to have both chev & holden (trimatic) patterns on my bell housing ..
Think you'll find that all 304fi motors are chev pattern..
The dellows bell housings are cast with both patterns but only the one required is drilled with the dowel/bolt holes.

Everything you've written is correct.
I have one attached to a Supra 5- speed that was in a Torana I bought years ago. The bellhousing is cast for both options and then drilled to suit, however I see no reason why the other holes couldn't be drilled and the bolt pattern changed.