What plugs to use with a pro-tec head?

[bluegtate]

What spark plugs should I use with a pro-tec non girdle head? I have been building my boat for a couple months and it is almost ready. I just have to go get plugs and some fuel and try to fire it,thanks

 

[sflsurfrider]

br8es, more than likely.

 

[Matt_E]

I don't know whether you need ES or HS plugs. Easiest way to tell would be to try either in the head and see how far the plug extends. You don't want it recessed in the head, and you don't want it sticking out.
Or, measure the depth of the threads and measure the plugs.

You can use Resistor or Non-Resistor plugs. Heatrange should probably be 8.

So, use B(R)8(ES)/(HS)

 

[Jumper]

I have the one piece, non-girdled Pro Tec head on my Blaster. It uses the E length plug.

 

[D-Roc]

I have the one piece, non-girdled Pro Tec head on my Blaster. It uses the E length plug.

X2, i got one here and it for sure uses E length.

 

[bluegtate]

thank you guys