exhaust stud thread sizes

red122 · Mar 22nd, 2021, 10:01

Could anyone please tell me what the two thread sizes are on the regular amazon manifold studs ? I need to buy some new brass nuts .

Derek UK · Mar 22nd, 2021, 12:25

I might advise the copper coated ones from Brookhouse? I don't have the size handy.

Ron Kwas · Mar 23rd, 2021, 10:09

R122;

Manifold Stud threads are 5/16" NC, and I agree with treating them with an anti-seize /lube.

Thread size at Manifold to Headpipe is larger, at I believe 3/8" NC, and those were SS nuts from the factory.

Cheers

Mar 22nd, 2021, 10:01	#1
red122 Master Member Last Online: Apr 25th, 2024 14:30 Join Date: Jun 2007 Location: tunbridge wells	exhaust stud thread sizes Could anyone please tell me what the two thread sizes are on the regular amazon manifold studs ? I need to buy some new brass nuts .

Mar 22nd, 2021, 12:25	#2
Derek UK VOC Member Last Online: Yesterday 14:29 Join Date: Jul 2006 Location: Chatham	I might advise the copper coated ones from Brookhouse? I don't have the size handy.

Mar 23rd, 2021, 10:09	#3
Ron Kwas Premier Member Last Online: Today 02:04 Join Date: Jul 2007 Location: Connecticut, USA	R122; Manifold Stud threads are 5/16" NC, and I agree with treating them with an anti-seize /lube. Thread size at Manifold to Headpipe is larger, at I believe 3/8" NC, and those were SS nuts from the factory. Cheers

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