Derale Single Side Ports 1/2" NPT Filter Mount with 13/16"-16 Filter Threads 25729 1987-pontiac-bonneville-esi6661741 "text": "This countersunk body bolt

"text": "This countersunk body bolt washer measures 0

so there is a D-SS PRO lighting solution for nearly any application

swap-out installation utilizing existing metering blocks

Flows 35 Percent Better Than Stock

500" oversized steel shaft spins in a sealed ball bearing and sintered bushing for long endurance and accurate spark delivery throughout the entire rpm range

Derale Single Side Ports 1/2" NPT Filter Mount with 13/16"-16 Filter Threads 25729 1987-pontiac-bonneville-esi6661741 "text": "This countersunk body boltHigh quality die cast aluminum thermostatic sandwich adapter with 3 8" NPT ports and an O ring diameter of 2 3 4", this adapter provides external oil lines to allow the addition of an engine oil cooler. It installs between the stock engine oil filter landing and the oil filter. Stock filter is retained. Designed to be used on engines with a 3 4" 16 filter thread. Kit includes sleeve nut only. Derale Single Side Ports 1 2" NPT Filter Mount with 13 16"