• Similar to the late-style 1980-99 OEM collars, but low profile for easier installation of high lift cams• Theyre required if you are using 1980-99 style valve guides which use seals such as P/N 431-506
- Make sure this fits
by entering your model number.
- Sold in a set of 4
- Low profile lower collars allow approximately .060 more valve spring travel and ease high lift cam installation
