Every now and then you come across something from the 50s and 60s thats just plain functional and cool. I had found this kit at a swap meet and picked it up . Got the chance to open it up today and install it in a early chevy distributor. Pretty cool kit and would make the "ultimate " distributor for that dual carb stovebolt six cylinder.... I took a core from the box and started cleaning up the shaft housing etc. The advance ( one of the best in the GM line up) was rusted up and wouldnt move. Took apart bead blasted and polished all moving parts . Removed heavy factory springs and installed two from a chevrolet curve kit. Everything is lubed and ready to ***emble. This dual point kit is a Mallory Accessory kit # 24800. Quality is first cl*** and comes with a new .40 mfd large br*** condensor, probably worth more today than the entire kit. Installation was very easy and came with all new hardware. Ran it on the machine , adjusted the points and let er run at 6000 rpm for a few minutes. 30 degrees of advance at 2500 rpm should be perfect !!!!! Wish i had some more of these kits for sure.. VERY, VERY nice unit !!!!!!!!
Yes the GMC is the same , although you may need a different drive gear based on the camshaft used in the GMCs. I suggest using the drive gear that came with the motor , they used a billett and a cast camshaft.... Good to see you and six in a row respond quickly, you learn well gr***hoppers .. I heard that somewhere ??
Verry cool , since u mess around with all these different distribtors, are these older Mallory's A lot better than the newer one ? just asking because I pick a mid 60s Mallory still brand new in the box for my chevy 292 and haven't messed around with it much yet.
I know some of the '50's Roll Royces and Bentleys used a 6 cylnder twin point Delco distributor. I've often wondered if the parts would interchange with Chevy and GMC. Good score!
Your distributor course was great - better than the last dental implant course I took - (thats a compliment)
The old mallorys are three times the distributor the new ones are. Better parts , better machining etc............... New ones are stamped jap **** ....... The only thing you may need on your 292 is a custom curve job.......setting the advance ot your engine.........
You could do that , however they are dual point chevrolets around and they made a retro kit for these as well. The stock v8 units work so damn well with a good set of contacts there is very little need to go to the trouble........
So would a twin point Delco be as good as a Mallory? I've always considered Delco electrics to be good quality. Makes me wonder why Rolls Royce went to Lucas. So is a twin point breaker plate the same for 6 cyl and V8 Chevy?
The older Delco stuff was very good. The v8 plates are very different from the 6 cylinder stuff........
Bubba,nice post,I see you mentioned 30 degrees of mechanical advance.Generally speaking,how much total advance do you run on a 235-262 engine? 30 plus 5 initial? or more initial?
The advance spec is 26-36 mechanical advance plus approx vacuum of another 10 degrees . You cant have max rpm and high vacuum at the same time, so there is some overlap and 30 is just about perfect. Factory all in spec is at 3400 rpm. 2500 is a little more realistic i think..... 30 degrees , no vacuum all in at 2500 seems to work well, especially in a dual carb motor with little vacuum....
Do you know what is different in this kit from Mallory #25050? I'm trying to figure out which kit would work to upgrade an old distributor from a GMC 270.
The main difference is that the 24800 kit used center pivot breaker points, while the 25050 used the newer style point sets that pivoted on one end.
Not to hijack this thread, but can you take a stock Delco vacuum advance unit and put it on a Mallory dual point distributor that was originally non-vac***? I have an older Mallory two piece cap style distributor for my 261 that I'd like to add the vacuum advance to if possible.
***uming you set up the mechanical advance on the Mallory to work in conjunction with the vacuum unit i see no reason that wouldnt work?? Should function very well...
dayton ignition also made a very nice twin point kit that fit into the stock 235 distrib houseing, they worked as well as mallory but stiffer point springs and harder chrome on the contact. i used them in the white 54 chevy we ran at island dragway named the stovebolt
Bringing back the dead from 2011. I just found four more of the mallory kits , they are in cl***ifieds.. A great kit for the GM six banger crowd....
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