Stem valve over size ???
Thread Starter
Burning Brakes
Joined: Nov 2006
Posts: 954
Likes: 40
2022 C3 of the Year Finalist - Modified
Stem valve over size ???
My heads have 1.600 Exhaust & 2.020 Intake Valves.
I have too mach freedom between the stem & the hole and my stem valves diameter are already + 0.003.
Where I can buy valves 2.02 + 1.6 with standard length (4.911) & over size stem diameter?.
The standard stem is 11/32 = 0.3415.
I need + 0.006 - +0.010 or 0.347 - 0.351 stem diameter.
Thanks
Avner
I have too mach freedom between the stem & the hole and my stem valves diameter are already + 0.003.
Where I can buy valves 2.02 + 1.6 with standard length (4.911) & over size stem diameter?.
The standard stem is 11/32 = 0.3415.
I need + 0.006 - +0.010 or 0.347 - 0.351 stem diameter.
Thanks
Avner
Thread Starter
Burning Brakes
Joined: Nov 2006
Posts: 954
Likes: 40
2022 C3 of the Year Finalist - Modified
Race Director
Joined: Jun 2000
Posts: 10,042
Likes: 674
From: FL
A good machine shop will drill out the old guides, press in bronze ones and then ream them to the correct size. This is fairly standard and easy for a machine shop in the US but I see that you in Isreal. You need to find a machine shop that can work on a small block chevy. This is not a do-it-yourself kind of thing.
Oversize stems will just wear the guides out more and cause the problem to come back.
Oversize stems will just wear the guides out more and cause the problem to come back.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
A good machine shop will drill out the old guides, press in bronze ones and then ream them to the correct size. This is fairly standard and easy for a machine shop in the US but I see that you in Isreal. You need to find a machine shop that can work on a small block chevy. This is not a do-it-yourself kind of thing.
Oversize stems will just wear the guides out more and cause the problem to come back.
Oversize stems will just wear the guides out more and cause the problem to come back.
, plus the guides don't wear evenly, the holes are no longer round.
Thread Starter
Burning Brakes
Joined: Nov 2006
Posts: 954
Likes: 40
2022 C3 of the Year Finalist - Modified
A good machine shop will drill out the old guides, press in bronze ones and then ream them to the correct size. This is fairly standard and easy for a machine shop in the US but I see that you in Isreal. You need to find a machine shop that can work on a small block chevy. This is not a do-it-yourself kind of thing.
Oversize stems will just wear the guides out more and cause the problem to come back.
Oversize stems will just wear the guides out more and cause the problem to come back.
Do you know what guides/bushing I need & where to buy them?
Thanks
Avner
