more spark plug ?
- Thread starter black cat
- Start date
rentedmule
wanna-be
Re: more spark plug ?
The ur5 is the stock heat range for a 4.3, isn't it? I ran the tr6ix's gapped at 35 in my '03 when it was supercharged. I kept them in after I took the blower off and they seem to be doing OK - I haven't noticed them fouling in the cold. At one point when I had the S/C I tried a delco plug that was 2 heat ranges down from stock (r32's maybe?) and they did build up some crud on the electrode after a while.
The ur5 is the stock heat range for a 4.3, isn't it? I ran the tr6ix's gapped at 35 in my '03 when it was supercharged. I kept them in after I took the blower off and they seem to be doing OK - I haven't noticed them fouling in the cold. At one point when I had the S/C I tried a delco plug that was 2 heat ranges down from stock (r32's maybe?) and they did build up some crud on the electrode after a while.
black cat
New member
Re: more spark plug ?
i can,t find an app where the the ur 5 or 6 is for an 4.3. but if u look at the stock 4.3 plug and a ur 5 or 6 there is a diff but not in the size just in the the electrode and ceramic.it seems to work well in my ty but in my s10 i used the stock plugs gapped down. mine fouls them after a 10 min idle they do clean up after a run but it has been a prob for a a while ive spent a long time trying to get the cold start right but it sems like plugs . if i change them its good for a bit bye the way i,m from the east coast too. NS
i can,t find an app where the the ur 5 or 6 is for an 4.3. but if u look at the stock 4.3 plug and a ur 5 or 6 there is a diff but not in the size just in the the electrode and ceramic.it seems to work well in my ty but in my s10 i used the stock plugs gapped down. mine fouls them after a 10 min idle they do clean up after a run but it has been a prob for a a while ive spent a long time trying to get the cold start right but it sems like plugs . if i change them its good for a bit bye the way i,m from the east coast too. NS
Last edited:
Captain Morgan
Moderated User
Re: more spark plug ?
stock plug for a 94 S10 4.3L is a UR5
stock plug for a SyTy is a UR5
so to answer your question, YES, you can use the same plugs SyTys use in your turbo S10.
and auto parts stores probably dont list them as UR5 in their catalogs, they list them by the stock number which is 2771 for the basic V-Power UR5, and the V-Power UR6 is 7773.
stock plug for a 94 S10 4.3L is a UR5
stock plug for a SyTy is a UR5
so to answer your question, YES, you can use the same plugs SyTys use in your turbo S10.
and auto parts stores probably dont list them as UR5 in their catalogs, they list them by the stock number which is 2771 for the basic V-Power UR5, and the V-Power UR6 is 7773.