NGK TR8 vs. gasketed plug
Thread Starter
Joined: Nov 2001
Posts: 45,325
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From: Chicago, IL
NGK TR8 vs. gasketed plug The plugs in question:
Stock no. 7317, R5724-8
Stock no. 7173, R5672A-8
The second one is gasketed, are these plugs the same heat range. MMouse, what plugs are you running, gasketed 3911's?
I'm runnnig Allpro heads and gasketed plugs were suggested a long time ago and I still run them, but the other plugs don't look like they would really protrude more into the combustion chamber.
Stock no. 7317, R5724-8
Stock no. 7173, R5672A-8
The second one is gasketed, are these plugs the same heat range. MMouse, what plugs are you running, gasketed 3911's?
I'm runnnig Allpro heads and gasketed plugs were suggested a long time ago and I still run them, but the other plugs don't look like they would really protrude more into the combustion chamber.
7317 is a stock type head plug with the stock 0.708" reach. Any after market head that is designed for a stock reach tapered seat plug can use that series.
7173 is a 0.750" reach non tapered seat. It's up to the head design to see if it matches that plug. "Should" be the same heat range....it's just a head design question.
7173 is a 0.750" reach non tapered seat. It's up to the head design to see if it matches that plug. "Should" be the same heat range....it's just a head design question.
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From: Norn Iron
Installed height of gasket/non gasket plugs is negligable. They are basically the same in the chamber.
Ive tried a few different plugs in my 853, Edelbrock, and now TFS heads ( TR6 and various gasketed ) I posted the pics up ages ago here somewhere.
These heads are intended for taper plugs, Ive pretty much always run gasketed plugs, as virtually no cars in Europe/UK use taper seats, so its hassle to get them.
Currently using BKR8IEX as reccommended by NGK. So far no complaints.
Ive tried a few different plugs in my 853, Edelbrock, and now TFS heads ( TR6 and various gasketed ) I posted the pics up ages ago here somewhere.
These heads are intended for taper plugs, Ive pretty much always run gasketed plugs, as virtually no cars in Europe/UK use taper seats, so its hassle to get them.
Currently using BKR8IEX as reccommended by NGK. So far no complaints.
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From: Cecil County Raceway!!!
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