What sized hose and fittings do I need?
Documented on the 1965 Ford Mustang build
Published August 13, 2026
Measure your current fuel line inner diameter and use matching hose and fittings.
Full Answer
Measure your current fuel line inner diameter and use matching hose and fittings. Common sizes on classic Mustangs are 5/16" or 3/8", but verify before purchasing.
Documented In This Build
Related Knowledge
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Related Parts
Fuel hose (rubber, appropriate inside diameter for system)
$20
Hose clamps (set)
$8
Evil Energy fuel filter with shutoff valve
Evil Energy$120
Mounting bracket and hardware
$12
Fuel fittings / adapters
$15
PTFE thread tape / thread sealant
$3
Related Tools
Drill and drill bits
Socket set and ratchet
Screwdriver (flat and Phillips)
Adjustable wrench / open-end wrenches
Tubing / hose cutter or utility knife
Catch pan and rags
