Trimatic to Grey Motor Conversions

Smooth customs · Post by **Smooth customs** » Fri Oct 12, 2007 10:24 pm

I am making up a conversion for a customer to fit an OZ 4 speed into his EK behind a grey motor.

This is a conversion we use to do in the mid 70's and 80's, and then a conversion kit was made available.

I also made up an Auto conversion to fit Powerglides and trimatics behind greys as well.

Is there any intrest in conversions of these types for owners of Grey motored cars

Thommo · Post by **Thommo** » Sat Oct 13, 2007 5:53 pm

Gday SC
I'm looking to put a trimatic behind a grey.
From what i know,
I only need to redrill a red motor flex plate
Use red motor starter motor
hydromatic engine mounts
Find a trimatic with 360 degree bellhousing,
and right side linkages
HR neutral cut-of switch to fit to an auto colum
& plum the vaccum to your manifold.

Is there anything else that needs to be done?

Smooth customs · Post by **Smooth customs** » Sun Oct 14, 2007 11:16 am

Thommo

You have the basis of what is needed and involved.
If you have the capabilities to problem solve and do what is required to do the job that is fine.

If you dont have these skills and have to rely on someone else be it a mate or the local mechainic , a well thought out kit with all the parts required to make this a bolt together deal is the way to go.

When I did these in the 70's I used the available trans at the time and adapted them as required. Yesterday I evaluated the late trans with the 360 degree bellhousing

I have one of these conversions to do and will approach it as I have done all the conversions I have designed and produced over the last 35 years.
When it is finished, and if there is some interest I will concider producing a kit with all the parts needed.

TAYZ 58 · Post by **TAYZ 58** » Sun Oct 14, 2007 8:03 pm

Thommo, I fitted a trimatic behind my grey, all of what you said is correct, its not really that hard of a job. We cut the end off an old crank shaft and used it as a template to re drill the red motor flex plate. I also bought a conversion kit from Rodger HANCOCK from Vic (hes made quite a few) which was excellent. Good luck with the conversion

Ive still got the instuctions here somewhere........

ekdoug67 · Post by **ekdoug67** » Fri Apr 11, 2008 7:38 am

TAYZ 58 wrote:Thommo, I fitted a trimatic behind my grey, all of what you said is correct, its not really that hard of a job. We cut the end off an old crank shaft and used it as a template to re drill the red motor flex plate. I also bought a conversion kit from Rodger HANCOCK from Vic (hes made quite a few) which was excellent. Good luck with the conversion Ive still got the instuctions here somewhere........

Hi Tayz 58, I'm doing one of these conversions on my EJ at the moment and would like to get one of these kits if available....Do you have a contact number for Rodger Hancock? Thanks!

Thommo · Post by **Thommo** » Fri Apr 11, 2008 11:15 am

ekdoug67 wrote:Do you have a contact number for Rodger Hancock? Thanks!

(03) 9758 1965

Trev · Post by **Trev** » Fri Apr 11, 2008 5:22 pm

I too am getting a kit off Roger, including the column shift gear linkage and gear indicator. Trev

ekdoug67 · Post by **ekdoug67** » Fri May 09, 2008 8:10 am

THOMMO wrote:
ekdoug67 wrote:Do you have a contact number for Rodger Hancock? Thanks!
(03) 9758 1965

THOMMO - Thanks for the contact Number - I went out to see Roger and the Trimatic conversion kit is simple and easy to get your head around for a non-mechanic like me. He's a great bloke to deal with and is very helpful with info and advice. When the engine and tranny are ready to go back into the EJ, I'll post a few pics!!

Thommo · Post by **Thommo** » Fri May 09, 2008 7:47 pm

mrs ratbox · Post by **mrs ratbox** » Wed May 14, 2008 10:10 pm

there's what looks to be a very good conversion kit to do this swap on ebay at the moment

ekdoug67 · Post by **ekdoug67** » Thu Jun 05, 2008 9:32 am

Hi all, Just wanted to post some pics of the greymotor to trimatic conversion kit as supplied by Roger Hancock (eastern suburbs Melb). The trimatic I used is from a HQ with shifter on the right hand side and has an electric solenoid kickdown. Earlier trimatics had a cable kickdown. The standard bellhousing has been changed to a VB commodore 360" full bellhousing.

You will need to redrill 4 holes in the redmotor flexplate to suit the greymotor 4 bolt crank.

the original greymotor mounts bolt up to the bellhousing cover plate supplied in the kit.

both of the original mount brackets have to be modified with a grinder so that they clear the bellhousing bolts.

The only other modification needed is the VB commodore bellhousing also has to have 2 holes redrilled and tapped (top bracket bolts each side).
- - - also, your torque converter must have encapsulated nuts (fixed to converter) because with the full bellhousing, you cant get to the torque converter nuts to do them up once everything is assembled!

Hope this info is useful to those considering running a Trimatic.... Cheers!

Greg.

FB MAD · Post by **FB MAD** » Thu Jun 05, 2008 10:00 pm

Thanks Greg for throwing the pics up.

There's a fair bit of interest both here and other forums on trimatic to grey and photos like these are brilliant for describing how its done.

ekdoug67 · Post by **ekdoug67** » Thu Jun 12, 2008 12:20 pm

Hi FB MAD -
......Funny thing is, my hydramatic was running quite well but the feedback on this forum indicated that the trimatic is a much better option and as luck would have it, my brother had a trimatic lying around in his garage.

- - - more than happy to help out with a few pics!!

Greg.

mrs ratbox · Post by **mrs ratbox** » Thu Jun 12, 2008 7:37 pm

there's a guy selling conversion kits on ebay to do this swap

Trev · Post by **Trev** » Thu Jun 12, 2008 8:12 pm

That would be Roger

fbekholden.com

Trimatic to Grey Motor Conversions

Trimatic to Grey Motor Conversions

greymotor to trimatic conversion pics