4.3
Thread Starter
Supreme Member
iTrader: (1)
Joined: Mar 2001
Posts: 1,100
Likes: 0
From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
4.3
has anyone ever done the 4.3 turbo swap nnto a 3rd gen?seems more practical thann the 3.8.same motor mounts bellhousing bolt pattern etc.even if you dont have the engine tthere are tons of astro vans out there with 4.3's that need a rebuild anyway so forge em and boost em what do you think?
------------------
87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.
SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.
best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'
------------------
87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.
SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.
best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
i have a 4.3 in a drag car. the motor mounts are differant and as far as i know there are no forged cranks for them. most parts you have to buy for a v8 so you end up with lots of spares. all in all it's been way more work and expense than a v8 would of been
------------------
ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
------------------
ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
Supreme Member
Joined: Jul 1999
Posts: 4,310
Likes: 1
the 3.8 is only more pratical because GM made so many more of them. The turbo 4.3 is rare from the facotry. All the Buick turbo pieces are bullet proof. Most get reused easily. To have the same to a run of the mill 4.3 you would spend big bucks on exotic pieces.
Thread Starter
Supreme Member
iTrader: (1)
Joined: Mar 2001
Posts: 1,100
Likes: 0
From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
a lot of people like the 3.8 but i am part of a gn site and once you get to the point where you need a cam guess what there is about one place you can get one and it's machined from solid billet cause they chew up the cam,clogg the oil filter and bye bye 3.8.and there are no facttory shortblocks avalable anymore that's my only reason for consderation
------------------
87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.
SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.
best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'
------------------
87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.
SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.
best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'
Thread
Thread Starter
Forum
Replies
Last Post
