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Referenced item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

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Mechanical/Functional

Ford exhaust port plug caps 289 302 351 Windsor

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CC BY

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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 Vehicles

Ford (all models)

Published Jun 30, 2026Updated Aug 14, 2026

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

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