spark plugs for Dart 1-014-2 heads
#1
spark plugs for Dart 1-014-2 heads
Does anyone know what the proper spark plug is for a Dart 1-014-2 head is? I know the newer Pro 1 castings use a 3/4 inch thread reach plug but unsure if the older 1-014-2 is the same or not? Using a small dental pick i can count 9 threads which I believe is for a 3/4 inch reach but wanted to see if anyone can confirm this?... is the 1-014-2 the early pro1 design?
#2
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The older dart heads , took a .460 reach tapered seat plug, like a merc/gm iron head engine. The newer darts use the longer reach plugs.
Are there numbers stamped on the front or back of the head, where the head meets the block ?
The 1-014-2 sounds like a race series head, like the 308/320/360cc versions
Are there numbers stamped on the front or back of the head, where the head meets the block ?
The 1-014-2 sounds like a race series head, like the 308/320/360cc versions
Last edited by MILD THUNDER; 07-19-2015 at 09:41 PM.
#3
MT thanks for the reply. The heads have been polished on the outside so all markings are gone but I believe you are correct that they are the older race series heads... what got me thinking is there was a few longer reach plugs that I found under the seat. The casting numbers under the valve covers are the same on both motors which also crossed my mind that maybe one motor had newer heads or something. Do you know anything else about the race series heads?... all I know about them is the paper work I got from the previous owner says they where ported to 380cc on the long runners and 365cc on the shorts and they have 2.30 intake and 1.88 exhaust valves