yes i need to no if thay are all the same thread count i no thay are all the same thread but i need to no about the count cause i dont like how close my piston dome cames to the plug and would like to raise it up and dont want to use a spacer so i need to no if the sohc or any d15 d16 b16 b18 are shorter please let me no

 

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damn no one can help me i guess spacers it is dang

 

I am guessing you milled the shit out of your head & this is why you are concerned about spark plug to piston clearance ?

I highly do not recommend using some random homedepot spacers...

 

nope not milled to hell only .015 shaved from stock only reserfaced but im just lil on the safe side im not useing homedepot im going to slide spaces off other spark plugs i would not use a washer it will not seal i just would like at least 2more threads up for safty my valves are perfectly free of harm from claying it but i just want the plug lil higher and was thinking maybe a d15 iss a bit shorter or even typeR or something i just thru this up to see if someone hard some sohc and dohc and could hold them 2gether at let me no you can kinda see from the picture the head i not shaved but i have flat Ss valves

 

I honestly don't think you will have a problem running OEM ngk plugs.... I personally wouldnt use any spacer on my plugs.

 

well anyone with Ctr pistons USE sohc plugs : o) thay are 3MM or so shorter heres the picture the contact point is shorter