Size of the nut used on oil pump pickup tube?

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08-29-2015, 04:15 PM

mustangfan305

Thread Starter

Join Date: Jan 2012

Location: Florida

Posts: 34

Size of the nut used on oil pump pickup tube?

Hey guys I'm building a 302 from the ground up and I bought all parts and pieces I needed to build the oil system but here's my problem none of the ARP bolts I bought come with the nut that hold down the oil pickup tube to the main cap stude on the block. Does anybody know what size nut and or what grade nut should I get for it? I tried looking everywhere but nobody online sells that nut

08-30-2015, 10:34 AM

ALMOST STOCK

4th Gear Member

Join Date: May 2007

Location: Calif

Posts: 1,926

The nut should be 5/16-16 not sure what grade bolt .

OIL PUMP BOLTS there are 4 bolts
The bolts that hold the oil pump to the block are 3/8-16.
The bolts that hold the pick-up to the pump are 5/16-16.
Torque them to 25 ft lbs

08-31-2015, 07:18 AM

Boss_Hotrod

5th Gear Member

Join Date: Apr 2006

Location: NC

Posts: 2,166

Its either a 1/2-20 or 7/16-20. Cant remember which. Just a regular grade 5 lock nut will be fine since it doesnt hold anything. You just dont want it coming loose. If you cant find a mechanical lock nut then use a lock washer. Dont think id trust a nylock nut in an engine.