v6 to v8 swap

[wrightz28]

That's why if you look, you'll see alot more 3.8's going into retro modern projects, decent power and mileage.

But there is a difference in rwd vs fwd applications.

[666_speed]

well, i still say thats neat...didn't know that.

[ihavtats29]

this is a 2.8l its a 87 model and its has limited slip dif i knew the trans would have to be junked along with the torque converter im mostly worried about drive shaft length and if i would have to relocate the trans crossmember, as for rear end changeout im not worried about that ive changed out plenty, ive built a few cars all witch were factory v8's ive never done the 6 to 8 swap

[666_speed]

the driveshaft should be okay, they were interchangable from 82-02 i believe, formulalt1 has some for sale

[666_speed]

or had at least.....

[ihavtats29]

thanks for the info ill keep you all posted when i start the prodject im currently driving the car believe it or not it only has 84,000 miles on it
my uncle gave me the car he had it sitting in the garage for the last
7 years only driving it 3 or 4 times a year recently i lost a lifter in it and i dont feel like messing around with fixing it right now any way if im gonna fix it im going to fix it right with a 350 , witch i have sitting in pieces 350 4 bolt bored 40 over, 400 sb double hump heads 10.2:1 cast alm pistons, a custom turned cam i got from a friends uncle witch should be sweet since he used to race road track for maseratti, solid lifters adj titanium pushrods, and alm roller rockers,thinking on getting a pete jackson gear timing kit, and i have some large valves sitting around im going to stuff into the heads ill post pics of assembly in a few months when i get started on the engine.

[Savage Messiah]

WHOA WHOA WHOA


a 3.8 tranny will NOT bolt up to a v8!

different bolt patterns.

Just figured I would clear this up...

[92zcamaroperson]

didnt think so...

[Savage Messiah]

yea, and I believe the input shafts may be different lengths as well.

Another thing to clear up is in terms of the RWD 3.8's, the 4l60e is internally the same as the LT1/LS1 4l60e

[ihavtats29]

3.8 tranny definatly not going to bolt up to a v8, more than likely im going to use a turbo 350 or a powerglide, the only way a v6 tranny is going to bolt up is if you make a bellhousing adapter

[666_speed]

that's what i thought...small block and big block bolt patterns are the same, but they are v8 specific

[wrightz28]

Kasey I wouldn't doubt you for a second when it comes down to as you stated, a current 3.8L to 4L60 (700).

I was thinking of the 3.8s of the mid 70's to late 80's in the Montes, Cutlatss and Regal, to maybe a 300 or th350.

Maybe i just didn't notice, but the few roadsters i 've seen with a 3.8L in 'em didn't have and adapters.

[ihavtats29]

wow what i thought was a bad lifter turned out to be something al bit more than that, i was riding down the road and the ticking stoped i was thinking the lifter had finaly pumped up cool i thought then a loud grinding sound, kinda like something was wrapped around the drive shaft , i through the car up on stands could not find anything loose i got to looking at the torque converter inspection cover and there was a freahs hole in it i pulledit off and behold 2 large chunks of metal fell out everything is dry in there all the torque converter mounts and bolts inplace must have had been part of the flywheel had broken i cant tell could not see anything wrong ohh well ill drive it till it dyes then put the 350 in it