Recent content by Phoenix440

Found the issue, the plate which has the pins for the mechanical advance arm slips on the shaft. Wonder if this is common with these distributors. I will let the seller know, but don't expect a replacement. Some good info there, thanks for all that. I bought the ebay distributor as the seller...

Thinking the same

Finally got my car going and am starting to tune ignition and carb to attempt to get some more performance. I have just done the weld up advance mod, to limit the advance( awful looking welds I know). When I went to install the distributor I noticed the rotor turns nearly 90 degrees when you...

Wow, wouldn't have thought resistor plugs woukd have caused miss firing. Will keep that in mind.

Yes the 1/2' plugs were what was in the 906 heads that came off the engine before pulling it down which made me query the shorter reach plugs.

Very interesting, thanks.

That's exactly what I was hoping to see, thanks for posting this. I was worried the RJ12YC plugs didn't project enough into the chamber. It seems the old heads had a longer reach ( you can see in the pics) , more like 1/2', which confused me.

Thanks for pics, looks like mine have been machined. I ordered some champion RJ14yc plugs but the reach is shorter than what I expected( would have thought 3/8 as those which were in the old 906 heads but they are shorter. What plugs did you use?

I bought some RJ14yc plugs. The reach is a bit less than what I had in the 906 heads. Just wondering if that looks right( they are listed at 9.5mmm reach). Did you have the heads off and checked the length by any chance?

Yes looks they have been machined for washer plug, just thinking the plug may sit further into the chamber than standard, which may be an issue. Thinking of trying the champions mentioned by Dave6T4.

Great photo, that explains it. My concern was the plugs may sit further into the combustion chamber than they should. Sounds like a 906 style plug should work.

Thanks, these are flat and need a washer and flat shoulder type plug, which is odd for 452s i believe.

The plug seats are generally tapered.

Thanks ill see if if I can track down a set of those.

Hi all Almost ready to start my 440 with reco 452 heads. I ordered peanut plugs Ngk bpr5fs after reading some info here. I must have missed the fine print. The 452s i have appear to have a flat gasket seat even though they have the raised part below plug which I read is to stop people using the...