Allstar Performance Steel Small Fill Plug Kit - 1.375 in Opening - Aluminum Cap - Polished 19399901 the Stroud system was developed

the Stroud system was developed

This is a single layer smoke lens used under your stack of clear that are bought separately

3/8 NPT ports

1971-1975 GMC Sprint

Allstar Performance Steel Small Fill Plug Kit - 1.375 in Opening - Aluminum Cap - Polished 19399901 the Stroud system was developedKits include a weld in or bolt in bung and an easy grip O ring cap with positive seal. Kits are often used as an inspection plug or a filler plug. Small fill plugs have a 1 3 8" opening with 1 1 2" 12 threads. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on