6togo

iTrader: (13)

Question are aftermarket hollow stem SS valves magnetic?

KCS

iTrader: (20)

The tip will be, but not the rest of the valve.

6togo

iTrader: (13)

Thats my problem the entire valve is magnetic! I took a head to the shop today to have them pop a intake and exhaust valve and see if they are marked and to weigh them would not surprize me if the place i bought them from did some shady S*** nothing but issues with these heads since i got them and they never even been bolted on!

KCS

iTrader: (20)

Cheap valves then I would guess. Good quality stainless steel shouldn't be magnetic.

6togo

iTrader: (13)

So i talked with another guy who has the same hollow SS valves and he said they are magnetic so they must have a lower grade of stainless in them. These are Mast valves i'm talking about in case that helps any.

KCS

iTrader: (20)

You know what's wierd, I just checked a set of GM hollow LS3 intake valves and GM solid stem LS2 valves and they're magnetic. The set of REV 2.080" valves I have aren't though.

6togo

iTrader: (13)

So i was told that premium alloy stainless is magnetic dont know if that is what i have or not just yet!

Briou

iTrader: (1)

Certain different grades of stainless steel can be slightly magnetic...it depends on material grade and there are tons of different stainless steels

6togo

iTrader: (13)

So i had the valves pulled and checked out and weighed they are Mast valves per the numbers on them 2.250 hollow stem SS intake weight 113 grams and 1.600 Inconel exhaust 100 grams. The machine shop said they are SS just who knows what grade.

Jason 98 TA

iTrader: (4)

If memory serves me correctly the mast valves are from REV. You might call them, they can compare the part # & see if its theirs.

Hope this helps!

6togo

iTrader: (13)

Will do Thanks!