quick questions
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Joined: Sep 2005
Posts: 325
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From: Midwest
Car: 1991 Camaro RS
Engine: 383 LT1
Transmission: T56
Axle/Gears: 4.10
quick questions
What is a colder plug stock, a NGK TR55 non-platinum or a regular non-platinum Delco for the LT1? Also, what are the part numbers for one stage colder than stock on the NGK and Delco (both non-platinum)?
Thanks
Thanks
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Joined: Nov 2001
Posts: 920
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From: AL,USA
Car: 1990 Formula
Engine: 95 LT1
Transmission: T56
Axle/Gears: Weak 7.5 with 4.10s
I believe the colder NGK is the TR6 plug. Some parts stores list it as a 4177. I don't know about the AC plugs.
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