hey guys im looking at putting a v8 trimatic auto behind my carby vn engine and im after some info or if anyone has done this can they tell me what i will need.
if i get a turbo pattern trimatic auto will this bolt up ?
if i use the stall that is in the auto box and use the flywheel from the vn auto engine will it work ?
are the v8 trimatic autos the same pattern where they bolt to the bellhousein (whether its turbo or trimatic patten) ?
what model trimatic would be the best to use in my case or doesn't it really matter?
it will be in a uc sedan 308 mild heads, lumpy cam and 9in diff 3.25 ratio with 14in tyers street car but is a weekended/toy so doesn't have to be tame on road.
trimatic to vn block
Started by
_freddy_
, Sep 17 2010 09:57 PM
16 replies to this topic
#2
dattoman
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Posted 17 September 2010 - 10:09 PM
There isn't a Turbo pattern trimatic
Thats why its called Turbo... or Tri pattern
You need an adaptor or have your block drilled to suit
Thats why its called Turbo... or Tri pattern
You need an adaptor or have your block drilled to suit
#3
surfmaster
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#4
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Posted 17 September 2010 - 10:35 PM
As datto said, Trimatic & Chev (turbo) bolt pattern are different. Out of the two choices datto suggested, my personal preference would be to have the block re-drilled, i paid around $300 to have mine done & yes the trimatic torque convertor will still bolt up. To my knowledge all Holden V8s use the same flexplate, therefore changing the bolt pattern on the block won't affect this.
#5
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Posted 17 September 2010 - 10:38 PM
Mate, I did alot of research on this a couple of weeks ago. will put up a list of shops and thier solutions and prices to make this happen. will have to be patient though because i am about to go to bed and wont be gettin back on the computer till thursday at this stage
#6
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Posted 17 September 2010 - 11:06 PM
Decided to do it before bed. From my understanding you use a chev pattern flywheel and trimatic stall in all these aplications
Castlemain rod shop do an adapter kit for $365, you will have to modify the inspection plate though and it spaces the box back so tailshaft would have to be shortened. Also was told from several people that these are just trouble and you wont be happy with them.
http://www.rodshop.c...ns/ap/ap014.htm
Craig at Torque power does a Bellhousing to pair them up, from memory it was around the $650 mark. best bet is to ring him on 0417556201.
/www.torque-power.com.au/
[email protected]
Rodney from Wholesale Automatics does brand new Bell Housing assembly for $995 inc gst,
Wholesale Automatic Transmissions
Factory 1/58 Barry St
Bayswater
Victoria 3153
Phone: 03-97628004
Fax: 03-97628108
[email protected]
Joe at Transtyle modifies trimatic bellhousings so they will bolt up to both a trimatic block and turbo block for $385, a further $88 if you wish for him to supply the bell housing. I thought this was the best option but after typing the shop name into google i found forum after forum of bad feedback from this shop.
Factory 1, 65-67 Hallam Rd, Hallam, Victoria, Australia, 3803
Tel: +61 3 9702 3188
Fax: +61 3 9702 3187
Email: [email protected]
I have a fresh manualized, kitted, 3500 stall traumatic that I wanted to bolt up to my vn motor. but after alot of research I decided personally that i would be better off just payin the extra to build a turbo pattern box and keep the tri for another motor. Hope the info has been of help
also, from what im told putting a bellhousing back on a box isnt just a matter of bolting it back up, theres a couple of specialized tools a some know how involved so you would prob be looking at paying a shop to do that too?
Castlemain rod shop do an adapter kit for $365, you will have to modify the inspection plate though and it spaces the box back so tailshaft would have to be shortened. Also was told from several people that these are just trouble and you wont be happy with them.
http://www.rodshop.c...ns/ap/ap014.htm
Craig at Torque power does a Bellhousing to pair them up, from memory it was around the $650 mark. best bet is to ring him on 0417556201.
/www.torque-power.com.au/
[email protected]
Rodney from Wholesale Automatics does brand new Bell Housing assembly for $995 inc gst,
Wholesale Automatic Transmissions
Factory 1/58 Barry St
Bayswater
Victoria 3153
Phone: 03-97628004
Fax: 03-97628108
[email protected]
Joe at Transtyle modifies trimatic bellhousings so they will bolt up to both a trimatic block and turbo block for $385, a further $88 if you wish for him to supply the bell housing. I thought this was the best option but after typing the shop name into google i found forum after forum of bad feedback from this shop.
Factory 1, 65-67 Hallam Rd, Hallam, Victoria, Australia, 3803
Tel: +61 3 9702 3188
Fax: +61 3 9702 3187
Email: [email protected]
I have a fresh manualized, kitted, 3500 stall traumatic that I wanted to bolt up to my vn motor. but after alot of research I decided personally that i would be better off just payin the extra to build a turbo pattern box and keep the tri for another motor. Hope the info has been of help
also, from what im told putting a bellhousing back on a box isnt just a matter of bolting it back up, theres a couple of specialized tools a some know how involved so you would prob be looking at paying a shop to do that too?
Edited by LEE, 17 September 2010 - 11:17 PM.
#7
_LEE_
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Posted 17 September 2010 - 11:21 PM
the last pic is actually a chev pattern converted to do chev and tri, but you get the idea
#8
_Quagmire_
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Posted 17 September 2010 - 11:34 PM
yep second the adaptor voices
seen em snap the flexplate at high revs/horsepower
if you haven't got a box already i'd just pick up a turbo patten box and t/shaft/shifter/crossmember to suit
seen em snap the flexplate at high revs/horsepower
if you haven't got a box already i'd just pick up a turbo patten box and t/shaft/shifter/crossmember to suit
#9
surfmaster
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Posted 18 September 2010 - 12:03 AM
also, from what im told putting a bellhousing back on a box isnt just a matter of bolting it back up, theres a couple of specialized tools a some know how involved so you would prob be looking at paying a shop to do that too?
There are a couple of special tools required to align the bell housing to the trimatic oil pump and the steel plate between them, generally only an automatic specialist will h ave these.
#10
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Posted 18 September 2010 - 04:58 AM
I have an adapter if you want one, bought it of ebay about a month ago, have changed plans, you can have it for the same as I paid $75 plus postage.
#11
yel327
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Posted 18 September 2010 - 08:45 AM
Don't use an adapter. Redrill your block. Or find a Chev pattern trimatic from the USA or Canada. These were a TH180 fitted to many 6cyl GM cars. You only need the bellhousing. The best Trimatic for a UC is a VL Commodore V8 box. Remember UC has a LH shift so you want a LH shift trimatic.
#12
_freddy_
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Posted 18 September 2010 - 09:31 AM
Don't use an adapter. Redrill your block. Or find a Chev pattern trimatic from the USA or Canada. These were a TH180 fitted to many 6cyl GM cars. You only need the bellhousing. The best Trimatic for a UC is a VL Commodore V8 box. Remember UC has a LH shift so you want a LH shift trimatic.
what do you mean by the "Remember UC has a LH shift so you want a LH shift trimatic" yel327?
my planes where to get a trimatic from a commodore and buy the toque power bellhousein to suit the trimatic to turbo block i thought that this would be a better way to go than a th350 or th400 but wat do you guys think would i be better of with the th350/400? would this box fit in my tunnel with no mods?
#13
rodomo
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Posted 18 September 2010 - 09:48 AM
Trimatics have the shifter linkage on either side depending on which car they came out of.
#14
yel327
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Posted 18 September 2010 - 10:04 AM
Don't use an adapter. Redrill your block. Or find a Chev pattern trimatic from the USA or Canada. These were a TH180 fitted to many 6cyl GM cars. You only need the bellhousing. The best Trimatic for a UC is a VL Commodore V8 box. Remember UC has a LH shift so you want a LH shift trimatic.
what do you mean by the "Remember UC has a LH shift so you want a LH shift trimatic" yel327?
my planes where to get a trimatic from a commodore and buy the toque power bellhousein to suit the trimatic to turbo block i thought that this would be a better way to go than a th350 or th400 but wat do you guys think would i be better of with the th350/400? would this box fit in my tunnel with no mods?
UC's with T-bar shift have a trimatic with a shift lever on the passenger's side. So if you already have a T-bar it is easiest to use a LH shift trimatic.
Honestly, a TH350 might be an easier and cheaper idea for you, just means a bit of a stuff around with gearbox crossmember, speedo cab;e and kickdown cable. Trimatic built right is a better box, but TH350 are fine if built right too. TH400 is a bit big for a Torana and not really necessary unless you are running a really big engine like a 377 or 400 SBC.
#15
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Posted 18 September 2010 - 10:41 AM
Trimatics have the shifter linkage on either side depending on which car they came out of.
easily changed if you have the parts and know how
but as i said b4 if you don't have a box just go the turbo route
#16
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Posted 18 September 2010 - 12:41 PM
so if i was to go a th350 what would be the best way to go about it? and would it fit nice in the tunnel with no mods?
#17
_freddy_
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Posted 20 September 2010 - 09:02 PM
what do you guys reckon about these gearboxes
http://cgi.ebay.com....=item4152bf2674
and can someone please explain what you need to do for the auto kick-down cable how does it work? my car originally had a trimatic with a 202 in it and has got a little thing on the throttle aswell if you know what im talking about.
thanks matthew
http://cgi.ebay.com....=item4152bf2674
and can someone please explain what you need to do for the auto kick-down cable how does it work? my car originally had a trimatic with a 202 in it and has got a little thing on the throttle aswell if you know what im talking about.
thanks matthew
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