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Ford exhaust port plug caps 289 302 351 Windsor - image

Files (1)

exhCap4.stl
STL
191.7 KB
Print guidance estimate
Estimated from part metadata
Print cost & setup estimate
Planning numbers for filament, cost, time, and setup. Treat them as estimates until you confirm the file in your slicer.
1 model file
Recommended kit
16g

Based on 25% main infill across listed model files

Material cost
$0.39

Filament only at roughly $24/kg PETG / ASA

Print time
28m–46m

Uses 70 mm/s, 0.2 mm layers; verify supports in slicer

STL fileRoleSource sizePETG / ASA 20%PETG / ASA 25%100% solidRecommendation
exhCap4.stlCover / cap191.7 KB STL
15g
$0.36
16g
$0.39
36g
$0.86
Use PETG / ASA; check sealing faces and verify in slicer.

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Mechanical/Functional

Ford exhaust port plug caps 289 302 351 Windsor

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Description

Dust caps for standard 1.5" x 1.125" exhaust ports on a Windsor family small block Ford motors. 5.0, 289/302/351. Useful when spraying engine cleaner or painting as it just leaves a little area that doesn't get paint. For a little more serious washing of the motor, an O ring could be stretched around the sealing surface that goes into the port opening, there is a groove to hold the O-ring in place. Not meant to be totally waterproof, but pretty good.

Compatible Cars

Published Jun 30, 2026Updated Jul 15, 2026

Originally published on thingiverse.com by Travis Walpole (travbuilds) · License: CC BY

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