Allstar Performance Exhaust Block Off Plates - GM LS-Series Engines 20-OTL-NB-4XL Smallest shell

Smallest shell

Universal coolers reduce operating temperature of the fluid

Product Features:

standard static flow design

Allstar Performance Exhaust Block Off Plates - GM LS-Series Engines 20-OTL-NB-4XL Smallest shellAluminum block off plates seal exhaust ports during engine storage or repairs. Plates help protect against moisture, dust, and dirt. 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 the quality, affordable and practical items available from Allstar