308

[thatotherguy]

has anyone used an adaptor to fit a trimatic to a turbo pattern 308 are they any good or is it better to get the block redrilled ?

[ozbox]

get the block drilled..adaptor also involves shortening the tailshaft...

[HK1837]

I've had a TH400 behind a trimatic 308 before. Kept breaking converter to flex plate bolts. I wouldn't consider using one again. You could get the trimatic bellhousing modded to fit the TH pattern block.

[HX76King]

Fellow would have adaptor housings check them out I was going to go the other way so that I could have the 5 speed. They also do hydraulic clutch conversions. Awesome stuff!

[adam perth]

put a chev in it.
seriously.

[thatotherguy]

the 308 was for my monaro really good motor but turbo pattern and i want to put a 4 spd back in it. the car was a factory 253 but have been quoted $4500 to rebuild it . i have a 350 in my van but that hasnt been good, it was a crate motor put in by previous owner and sitting on 80 kmh one day it dropped a cylinder and started blowing smoke so i am a bit reluctant to throw more money at it

[HK1837]

Might just be a valve.

[ozbox]

so you are putting a trimatic behind it or a 4 speed?..if its a 4 speed then you just buy the bellhousing..

[HK1837]

^^^As above for HQ and HJ, or 2nd half of HZ. Not so easy for HX and early HZ as clutch mechanism attaches to 4spd bellhousing holes so needs further mods.

[thatotherguy]

so you are putting a trimatic behind it or a 4 speed?..if its a 4 speed then you just buy the bellhousing..

i didnt realise they made 4 spd bellhousings for turbo blocks i thought anything with a 4 spd had trimatic blocks i have a 308 from a vl commodore and it is trimatic pattern but it needs reco but i can get a really nice 308 but it is turbo pattern hope that makes sense