Fox 5.0 Mustang Tech

Technical discussion related to the Fox body 5.0L Mustang.

Fox Engine Swaparoo

: 173

: 1.6K

Threads: 173

Messages: 1.6K

Speed density 302 to carb 351W

May 29, 2026
AeroCoupe

Filters

Engine '91 5.0 Pop & Sputters Around 4k Rpm

Replies: 13

Views: 3K

Jul 12, 2025

Noobz347

Engine 1990 LX 5.0L EFI Mustang Fuel Management Problems - HELP!

2 3

Replies: 45

Views: 2K

Jul 11, 2025

5.0LXStanger

C

Electrical New fox body owner little worried

2

Replies: 30

Views: 6K

Jul 11, 2025

Noobz347

C

Locked

Engine Found problem but!!

Replies: 9

Views: 2K

Jul 11, 2025

Noobz347

C

Locked

Engine Struggling engine

Replies: 6

Views: 2K

Jul 11, 2025

Noobz347

C

Locked

Engine New electrical issues

Replies: 8

Views: 777

Jul 11, 2025

Noobz347

Locked

Engine Might have to get a Dart block but don't want to and if I do, then 363 instead of 331. Thoughts on what I've already bought so far.......

Replies: 2

Views: 537

Jul 8, 2025

Noobz347

7

Wheels-Tires Front end shimmy on 79 foxbody

Replies: 12

Views: 446

Jul 7, 2025

General karthief

Engine Light throttle miss

Replies: 1

Views: 186

Jul 7, 2025

AeroCoupe

M

Suspension Coil over clearance

Replies: 15

Views: 3K

Jul 6, 2025

mcowing

M

X

Engine What’s your preferred way to clean engine parts prior to assembly?

Replies: 13

Views: 867

Jul 5, 2025

Methodical

R

Drivetrain Clutch

Replies: 4

Views: 288

Jul 2, 2025

AeroCoupe

9

88 dies when spout is plugged in

92LX5spd
May 7, 2023

2 3

Replies: 44

Views: 7K

Jul 2, 2025

AeroCoupe

Engine 302 production block selection

2 3

Replies: 48

Views: 7K

Jul 1, 2025

FastDriver

J

Electrical Cluster bulb LED swap gauges bounce

Replies: 1

Views: 206

Jun 29, 2025

gkomo

E

Engine EEC-IV Problems

EDDIEM75
Jun 13, 2025

2 3 4

Replies: 62

Views: 2K

Jun 29, 2025

manicmechanic007

Forced Induction Bypass valve backwards?

Replies: 3

Views: 362

Jun 29, 2025

JD1964

Engine My Gates K060845 (85 1/4”) belt doesn’t fit

Replies: 17

Views: 627

Jun 27, 2025

Mcmahst

Electrical Going crazy trying to identify burnt and disconnected wires 83 GLX5.0

Replies: 6

Views: 436

Jun 26, 2025

AeroCoupe

B

Electrical Fuse 8, Light Green / Black Wire

Replies: 7

Views: 481

Jun 26, 2025

bleedinggreen

B

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