TSP/CRT Distributor Cap?


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By RossL - Yesterday
Does anyone know if an MSD cap will fit the TSP distributor?   (HEI/with tach drive for Tbird)

The carbon button that contacts the rotor disintegrated.   Luckily I bought a spare but since this one failed with about 4,000 miles on it I would like to find something more reliable.

Note this is the second problem I've had with the distributor.  The coil was intermittent out of the box now this................it's 8 months old
By Ted - Yesterday
The MSD 84335 (red) and MSD 84336 (black) distributor caps will work with the CRT & TSP Ford YBlk distributors.  To date, I have only used the Pertronix (0.6 ohm) and MSD (0.7 ohm) coils with the CRT & TSP distributors.  When available, I use the epoxy coils versus the oil filled coils.  Be sure you have the positive and negative sides of the coil hooked up correctly to the distributor wiring harness.
By RossL - Yesterday
Ted (3/16/2026)
The MSD 84335 (red) and MSD 84336 (black) distributor caps will work with the CRT & TSP Ford YBlk distributors.  To date, I have only used the Pertronix (0.6 ohm) and MSD (0.7 ohm) coils with the CRT & TSP distributors.  When available, I use the epoxy coils versus the oil filled coils.  Be sure you have the positive and negative sides of the coil hooked up correctly to the distributor wiring harness.

I need female terminals, MSD does not have that config in that size.  I just installed a new set of custom wires...................
Does anyone besides pertronix make an epoxy filled?
By Ted - 4 hours ago
RossL (3/16/2026)
I need female terminals, MSD does not have that config in that size.  I just installed a new set of custom wires...................
Does anyone besides Pertronix make an epoxy filled?

The MSD p/n 8222 and Holley Sniper p/n 556-153 coils are epoxy filled and ohm compatible for electronic ignitions.

I do have spare ‘plug in’ style distributor caps for the CRT/TSP distributors.  Just send me an email if you fail to find a ‘plug in’ replacement on your end.
By RossL - 4 hours ago
Ted (3/17/2026)
RossL (3/16/2026)
I need female terminals, MSD does not have that config in that size.  I just installed a new set of custom wires...................
Does anyone besides Pertronix make an epoxy filled?

The MSD p/n 8222 and Holley Sniper p/n 556-153 coils are epoxy filled and ohm compatible for electronic ignitions.

I do have spare ‘plug in’ style distributor caps for the CRT/TSP distributors.  Just send me an email if you fail to find a ‘plug in’ replacement on your end.



Thank you Ted.  I bought two extra caps and a module with the distributor.  I was hoping the MSD might be better quality, since this one was not even a year old.  I will use the spares, if another one fails prematurley I will see if my wires are long enough to crimp new ends on and get the MSD cap