Fox 5.0 Mustang Tech

Technical discussion related to the Fox body 5.0L Mustang.

Fox Engine Swaparoo New

: 173

: 1.6K

Threads: 173

Messages: 1.6K

Speed density 302 to carb 351W

May 29, 2026
AeroCoupe

Filters

K

Drivetrain '87 5.0 Installing New Ring Gear and Pinion - Pattern Questions

Replies: 10

Views: 334

May 9, 2026

Mindseye007

G

Electrical Getting good ground in 1991 Fox Vert for amps - getting popping noise when I turn on the lights?

Replies: 15

Views: 283

May 9, 2026

CAMTWO1070

B

Engine Another no start after washing engine bay

2

Replies: 24

Views: 499

May 7, 2026

AeroCoupe

F

Interior and Upholstery 1986 Mustang convertible Inner door help

Replies: 4

Views: 95

May 7, 2026

AeroCoupe

Engine Suggestions on an engine rebuild. Stock cam/GT40Ps or aftermarket on both for a fun weekend driver?

2

Replies: 23

Views: 620

May 7, 2026

MadSquirrelTech

J

Wheels-Tires Need Some Help - Brakes Upgrade/Wheel fitment

jaygee15
Dec 8, 2025

3 4 5

Replies: 81

Views: 2K

May 6, 2026

AeroCoupe

Engine Fuel not pumping

Creomod
Apr 13, 2026

2 3

Replies: 43

Views: 727

May 3, 2026

Shakerhood

Electrical Headlight Harness Route

Replies: 0

Views: 59

May 3, 2026

dan50

Foxbody Mustang Cruise Control information, location, wiring diagrams

Mustang5L5
Jan 22, 2021

2 3 4

Replies: 79

Views: 37K

May 3, 2026

AeroCoupe

Dipstick Not Correct

Replies: 14

Views: 10K

May 3, 2026

AeroCoupe

Engine (EGR Deleted) Solution the hotter combustion chambers?

PonyGTrider
Jan 21, 2026

3 4 5

Replies: 97

Views: 3K

May 2, 2026

PonyGTrider

Electrical In theory what ELECTRICALLY kills TFI modules?

2

Replies: 22

Views: 6K

May 2, 2026

gkomo

F

Engine 1988 Foxbody idle issues

2

Replies: 26

Views: 424

Apr 30, 2026

AeroCoupe

Electrical Ron Francis Headlight / Alternator Harness

Replies: 0

Views: 181

Apr 30, 2026

dan50

Wheels-Tires Factory white ponys, anyone know a color match paint for them?

Replies: 5

Views: 238

Apr 27, 2026

rednotch

H

Drivetrain 6R80 to t56 swap

Replies: 4

Views: 192

Apr 25, 2026

AeroCoupe

Engine Radiator with no shroud provision... What to do?

Replies: 16

Views: 282

Apr 25, 2026

FastDriver

Engine Bleeding air in the heater core

Replies: 10

Views: 217

Apr 23, 2026

limp

The Official Fox Body Production Number Thread

10 11 12

Replies: 224

Views: 345K

Apr 21, 2026

jmadera916

J

F

Electrical Please help. In CA, have to legally change my 5.0 ECU from 89 to 91, What must be done to make it work?

Replies: 5

Views: 3K

Apr 19, 2026

CAMTWO1070

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