i am now wondering if i can put in a tranny meant for a V8 its a manual


will this give me better or worse performance


also how hard will it be to adapt???

 

Can't use it, sorry.

 

so i should just get it rebuilt??????

 

well my tranny blew recently, and well i had it rebuilt, but it's an automatic. From what i've been told the v8 and v6 trannies (700R4's) are the same internally, i'm guessing that a (T5) for a v6 and v8 should be too. The difference are supposedly with the bellhousings, and the v8 one won't bolt up to the v6. As one mechanic told me, a v8 tranny benefits only because it has a v8 infront of it, meaning that the tranny won't have to downshift out of O/D to make it up steep hills, unlike a v6 that's constantly shifting between D and O/D.On your manual you might not have this problem though, my guess would be to just have your manual tranny rebuilt. Throw in some performance parts though if you want.

 

not true... i am using the input shaft off a v8 along with a v8 clutch and it works fine. All they did was swap input shafts, then drill and tap holes to fit the v8 clutch

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil (Fireball in future) Accel 8.8 wires, MSD Ignition Module, 4th Gen Seats

--This car is for sale!-- Email me!
" I'd rather run last in a full out race, than to NOT run at all ".

 

graeme>>????? what about the bellhousing???

 

I had a tranny shop tell me a 305 would bolt up to my tranny

 

About the v8 tranny's being the same as v6 tranny's, they're not. The manual v6's came with shorter gear ratio to kinda compensate for the lack of power. Swapping in a tranny from a v8 not only requires changing the bell housing, but it will also affect preformance in the same manner as goin from 3.73's rear end gears to 3.23's. Reason why a v8 wont bolt to a v6 tranny and vice versa is because the 8's are 90 degree motors and the 6's are 60 degree motors. (no not temperature, the angles of the pistons!) hehe... so yea. payce!

------------------
85 2.8L Sport Coupe 5-speed.
Mods: Hpertech chip and powerstat, MSD 6A-L, Crane fireball coil, Dynomax hi-flow cat and catback system with a dynomax magnum race bullet muffler on the i-pipe, K&N filterchargers, Eibach and Tokiko springs/shocks setup, Global west sub frames, Suspension techniqs front and rear sway bars, and good ole 88 IROC wheels with Kumo Ecstas on em!
"I'm out to seek those pesky VTEC boys!" (don't get me wrong, I'm asian myself! hehe)

 

dont know about bellhousings...only thing im using of an 8 is the input shaft and its clutch. The rest is from a v6

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil (Fireball in future) Accel 8.8 wires, MSD Ignition Module, 4th Gen Seats

--This car is for sale!-- Email me!
" I'd rather run last in a full out race, than to NOT run at all ".

 

well, being the young 17 teen year old i am,

i talked with my parents and we decided the best solution will be to eihter get it rebuilt OR get a replacement tranny from the general

 

Scour the used parts section. You should be able to find a V6 T-5 floating around either here or on Camaroz28.com's for sale section. As far as I know, V6 trannies don't have a history of "blowing" simply because they don't take as much abuse from the V6.

Chris

 

Check out your local wrecking yards.

 

Couldn't the V6 manual-trans bellhousing be redrilled for the V8 trans?


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Seek one outta the wrecking yards, much less expensive.
While it's out, check it out, before it goes under the car!
You'll win.
Happy hunting.

I NEED A GOOD 700R4 from the LA area.
Who has one???????????

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

sorry guys,

case closed

i went down to the tranny specialists and told them to rebuild it

its $1600 rebuilt with brand new parts and a new clutch

how bad is that???