71scamp78
Well-Known Member
Just wondering if there is a stamp with numbers or something on the distributor to tell me if is a mopar performance one
how do i know if i have a mopar performance distributor
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doug 371
Well-Known Member
usually blue tag with numbers
small block ends with 430
small block ends with 430
OUTLAW
Master of All Mopars
is it point or electronic?
slantsixdan
=..=
Take a look at the mechanical advance flyweight springs. If they are both very lightweight springs with round loops on both ends (or if there is just one lightweight spring in total, no second spring) that's the MP setup: it dumps all the mechanical advance in real quick off idle. Fine on the track…not so hot on the street. Street-type distributors have one heavy and one lighter spring, often different colours, and the heavier spring has an elongated loop at one end so it doesn't become active until the lighter spring is stretched.
Also, if the part number tag is still present, and its number starts with a "P", that's a MP item.
Also, if the part number tag is still present, and its number starts with a "P", that's a MP item.
Best if you explain more about what you are looking for.
I have three I bought new. Green tag on one - the Chrysler built version. Mallory built version is externally identified by the metal (vs. plastic) retaining collar on the lower shaft. Removing the cap and rotor, the top of the hollow shaft the rotor seats on is brass colored. Prestolite based version was intended for racing. Externally the housing is aluminum but has the cap notches are for the prestolite cap, it has a mechanical tach drive, and no vacuum advance.
Internally, all of them came with one light primary spring and a long looped, heavy secondary spring. Although MP sold packages with two very very light springs, the distributors themselves that I have did not come that way. The super heavy secondary springs (especially on the tach drive dizzy) is to offset the slew rate of the ECU and any mechanical retard at high rpm (4000-8000 rpm).
I have three I bought new. Green tag on one - the Chrysler built version. Mallory built version is externally identified by the metal (vs. plastic) retaining collar on the lower shaft. Removing the cap and rotor, the top of the hollow shaft the rotor seats on is brass colored. Prestolite based version was intended for racing. Externally the housing is aluminum but has the cap notches are for the prestolite cap, it has a mechanical tach drive, and no vacuum advance.
Internally, all of them came with one light primary spring and a long looped, heavy secondary spring. Although MP sold packages with two very very light springs, the distributors themselves that I have did not come that way. The super heavy secondary springs (especially on the tach drive dizzy) is to offset the slew rate of the ECU and any mechanical retard at high rpm (4000-8000 rpm).
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