Spark Plugs

[John Christian]

I am looking for a recommendation in respect of suitable spark plugs for my Tornado TS40 which is primarily used on the road. I am UK based.

Engine specifications are:-

Ford 302 Holley 600 cfm 4 barrel Big Valve Ford Motorsport Cylinder Heads (Aluminium) Motorsport True Roller Rockers Edelbrock Performer RPM Camshaft and Inlet Manifold MSD 6AL with Blaster 3 Coil ignition Accel distributor 51201E Blue Max 8mm Spiral Core Leads.

Also what would be the recommended plug gap setting.

Many thanks for your assistance.

John

 

[Fred/Belgium]

Always used Autolite AR3934

Grtz
fred

 

[Mike Pass]

I have Edelbrock Parformer RPM heads. I have used NGKBCPR5ES plugs road and occasional track use for years with no issues at all.
NGK part number key attached.
Cheers
Mike

 

[Howard Jones]

Here is a good overview of the how and why of spark plugs along with a cross-reference of different plug manufacturers. I am using NGK R #BKR6E. Engine : SBC, aluminum heads, 10.68/1 CR, quite a lot of cam, and 93octaine pump gas.

The MSD 6AL and Blaster SS 8207 coil seems to like a plug gap of .040

BoschSparkPlugs.net: What is a Spark Plugs Heat Range?

www.boschsparkplugs.net