400 and 383's, come inside.

Reply Subscribe

Thread Tools

Search this Thread

Mar 4, 2002 | 01:55 AM

Omar

Thread Starter

Senior Member

Joined: Jul 1999

Posts: 994

Likes: 0

From: San Diego, CA

400 and 383's, come inside.

I searched the archives, but couldnt find much.

If you have a 400, or 383, what kind of gas mileage are you guys getting?

I would prefer FI, but carbed units are also welcomed.

Thanks!

Mar 4, 2002 | 02:08 AM

Apeiron

Moderator

Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

13 city, 19 highway, but that was at altitude.

Mar 4, 2002 | 02:26 AM

Stroked-Z

Senior Member

Joined: Oct 2001

Posts: 607

Likes: 0

From: Ottawa, Ontario

5 city....7 highway!

LOL j/k man but it isnt good.....

4:10 with a 3 speed & high just DONT mix.

Mar 4, 2002 | 05:56 AM

drive it

Senior Member

iTrader: (1)

Joined: Jun 2001

Posts: 549

Likes: 16

From: Ca.

An honest 22 to 24 hwy. and 18 in town; of course with a heavier foot it'll go down....

Mar 4, 2002 | 09:29 PM

rocky383

Senior Member

Joined: Nov 2001

Posts: 532

Likes: 1

Car: 88 IROC-Z

Engine: 383 Stroker

Transmission: TH350

10 city, 13-14 hwy. Yes, it sucks. But you have to give up something for getting something.
:hail:IROC-Z

Mar 4, 2002 | 09:36 PM

cp87GTA

Senior Member

Joined: May 2001

Posts: 745

Likes: 0

From: springfield,IL

Car: T/A / Grand Am

Engine: 383 SBC

Transmission: glide

Axle/Gears: 9" ford 5.67

Weeeeeell it depends on how I drive it. Easy footed it'll get 15mpg hy and 14 mpg cty.

Attached Thumbnails

Mar 4, 2002 | 09:43 PM

jamesbern

Member

Joined: May 2001

Posts: 308

Likes: 0

From: kingfisher, ok

20 combined highway and in town with the 2.73's, around 18 with the 3.73's.

Trending Topics

91 rs overheating.

38

663
PROM Compatibility

19

4.8k
For the 305 Crowd: Engine Power Channel

30

1.1k
1991 Formula LS9 Build

101

7.3k
Dash Wiring

5

149

Mar 4, 2002 | 09:47 PM

grumpygreaseape

Senior Member

Joined: Jul 2001

Posts: 548

Likes: 3

From: Culleoka, Tn

Car: 85 iroc,96 z28,96 Ram 2500,69RR

Engine: 383 with AFR heads.

Transmission: richmond 5 speed

Axle/Gears: 1991 w/1LE.auburn pro series.2.73's

man-o-man hows this, owned the car since new and have never never ever even checked on that particular spec. should i feel bad about that? 17 years of ownership and not once? um i will check that soon and get back to you. now I "GOTTA" know.