msd real or knockoff

[Lowcar]

why would heat and rust be any more of a issue with the sbm than any other engine? ever see were a early ford flathead distributor bolts on, been running a mallory unilite on 36 flatty for 20 years no issue's. and about the cheap comment the widest part of a one piece billet distributor body is around 4 inches the widest part of this distributor body is now a little over 2 inches, chuck a piece of 4 in round billet in the lathe versus a 2 in piece and you would have a huge savings

 

[Demonracer]

I have an MSD 8534 that I had & run for quite a while. I believe it's dated MAR 11 & has the plastic base as shown.

 

[Jarlaxle]

The plastic base transfers less heat. Just spit ballin'

And is twelve cents cheaper.

 

[LocuMob]

the widest part of a one piece billet distributor body is around 4 inches the widest part of this distributor body is now a little over 2 inches, chuck a piece of 4 in round billet in the lathe versus a 2 in piece and you would have a huge savings

Way more cost effective with that smaller piece of billet.

 

[Krooser]

Come to think of it my MSD billet dizzy has that brown plastic basce and its from 1993!

 

[str12-340]

They've been like that for 20 years - I thought the OP meant the whole body was plastic!