My engine is casting # 389244D with B heads and a Tripower manifold Casting #393238

Some questions about this engine which apparently has a W30 cam in it.
I want to replace the spark plugs and the old ones have a ND brand name on them but no number. Does anyone recognize this brand? Could anyone tell me what Autolite spark plug number to use as a replacement for my old plugs? Or does anyone have a preferred spark plug to use with this engine?

I also want to replace the distributor cap, rotor and spark plug wires? If I can't get these parts for my 425 engine, will ones for a 400 engine work?

Thanks
Pat Mills

 

ND is Nippodenso. The correct plug to use depends on what's been done to the motor, since it clearly is not stock.

All Olds point-style distributors use the same cap and rotor for the 1964-1973 model years. All coil-in-cap HEI distributors use the same cap and rotor (which is obviously different from the point-style cap and rotor).

 

hey pat, nice to see another island guy. would like a 425 in my car, i have a parts engine and c heads, torker intake. would like a complete runner to start with, i dont know what parts im missing.cant help you on the tech, i think the distributors are the same for all, even the 350. stan

 

Thanks Joe. I have never heard of Nippodenso plugs. I will look to see if there is a number on them as this will be my only clue to what the correct plugs will be. I do not know the person who built it.

thanks for the note Stan. There are a few Olds guys on the island.

 

All the distributors are the same.

 

i have an accell dual point distributor, old school! came in a bunch of parts. different cap though.