This HPT Buick turbo oil drain and feed line kit by Full Throttle Speed is designed to fit with your Buick F2 or F3 HPT turbo. Includes the proper sized -8AN oil return line to the stock location in the block/valley. The -4AN oil feed line connects to the factory brass block where the stock feed line is located.

Vehicle Fitment:
Fits HPT F2/F3 Buick Turbos ONLY
1986-1987 Grand National, T-Type, Turbo Trans-Am

Purchase Includes:
(1) -4AN Feed Line
(1) -8AN Drain Line
(2) Drain Flange Bolts

Notes:
• Hand built custom length specific -8AN return to go to the stock spot in the block/valley.
• Yes -8AN is the correct size, these turbos don't use as much oil as what you are used to.
• Does not fit any other turbo. Works with the F2/F3 Buick turbos only.

Drain Flange Spacing Option:
As of July 2025, all Buick F2/F3 housings have the 2.0" bolt hole spacing. Some older F2/F3 HPT turbos had 1.5" spacing. Please confirm before purchase.

Pictured:
Images are for reference.