• Vulcan Engineering Vulcan Engineering Compression Releases 1 7/8" & .500" threat - 66-8232

Vulcan Engineering Compression Releases

Art no.: 66-8232
incl. tax, plus shipping 
Made out of stainless steel these compres - sion releases have the correct pop-off rate for Harley engines. Drill and tap a hole preferably on the spark plug side of the head into the combustion chamber. They have a 10mm x 1.0 thread pitch. Comes in variable over all lengths and thread lengths. Made in the USA. Sold each type: 1 7/8" & .500" threat
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