Stock plug is Champion L92Y from the Workshop Manual Supplement. I have
used both NGK BP5HS and Bosch W8BC. The NGK seem to suddenly deteriorate,
giving hard starting and very poor cold running after not many thousands of
miles, even though physically they look like new. I have recently put the
Bosch in so it will be interesting to see how they compare. I always have
to get my plugs (UK) on special order.
----- Original Message -----
From: "Jeffrey Howell" <howellmail@worldnet.att.net>
To: <mgb-v8@autox.team.net>
Sent: Saturday, February 23, 2002 11:05 PM
Subject: Spark Plug Question on 215
> What is the best spark plug to run in this engine? I have just had my
engine
> overhauled with 10.25 to 1 pistons, with a stronger cam and port and
polished
> heads. Is the stock plug still the plug of choice? I went to a several
auto
> parts today and no one has a listing in their books. What is the stock
plug
> and should I go hotter?
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