Performance S127212-602-604 GM 602 & 604 Crate DUI Stealth Distributor

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Performance 27212-602-604 GM 602/604 Crate DUI Stealth Distributor

    • 4% off
    Market price: $459.95, you save $20.00
  • $439.95
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  • Shipping info

    We deliver worldwide and to almost all countries. Call us at 704-871-0721 to get help with large international orders and we can help manually check the shipping for you. MORE INFO BELOW in Shipping Info section.

  • Payment methods

    Accepted payment methods

  • Return Policy

    We accept returns for up to 30 days from the purchase date. To be eligible for a return, your item must be unused and in the same condition that you received it. More Return Info below. 

The GM 602 & 604 Crate DUI is designed specifically for these crate engines with two features that set it apart from regular Racing DUIs. First, the mechanical advance is calibrated on a distributor machine with an aggressive and accurate timing curve designed to meet the requirements of these crate motors. This special racing curve will ensure maximum performance and get your car out of the corners faster. Second, a melonized
gear is installed on the distributor (instead of the stock cast gear) which is compatible with factory roller cams. 

  • Capable of turning 9000 RPM
  • No external spark boxes or coils are needed
  • Easy drop-in installation with a one wire hookup
  • Sends 2-3 times more spark into the combustion chamber than a magneto
  • Allows spark plug gaps to be opened up to .055"
  • Only pulls 2-3 amps (other systems draw 10+ amps)
  • Key distributor parts are polished and lubed for smooth operation

Available in "Stealth" version with no decals and a black cap for a bone stock appearance.


This does not have an internal rev limiter. If you would like to add an external rev limiter then part number 5478728 can be used with this distributor.

Each distributor is test on a machine before they leave D.U.I. This distributor will allow you to open plug gap to .050"-.055". Will work to over 10,000 RPM's. No spark box is required.

Product Line

Crate Motor

Computer Controlled Compatible


Trigger Style


Advance Type


Cap Style


Cap Color


Mechanical Tach Drive


Slip Collar


Gear Included


Gear Material




Ignition Box Required


Distributor Rotation


Housing Material


Housing Color


Housing Finish


Marine Use


Coil Included


In Cap Coil




    • Weight
      6.78 lbs
    • SKU
  • Manufacturer
    Performance Distributors - High Performance and Racing Ignition-DUI IGNITIONS

Product questions

  • B
    May 18, 2023, 23:37

    What gab do y’all recommend running the 602 NgK plugs with this DUI distributor? They are at .035now with this new dui stuff they say open them
    050-055 ?? What do y’all think is a good gap for them 602 w/ this DUI have u played with plug gaps on this motor to see what is best ?? Thanks

    May 19, 2023, 00:41

    I would call DUI directly @ 901-396-5782 and check with them, they have dyno'd many setups and would know better, I would image the larger gap would be the best though. Thanks for asking, Glenn.

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Products typically ship out between the same day and 1-3 days. Depending on the time/day ordered and the product type. Some products are made to order to spec and will ship once built. Feel free to call us at 704-871-0721 if you have any questions about shipping. Also call us if you are ordering large items like race car bodies as those are hard for the freight system to calculate sometimes and it will overestimate. Thank you.

We accept the following payment methods:

Accepted payment methods

And now Venmo & PayPay Credit

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. If the return is not based on a mistake on our part, a 15% restocking fee will apply.

Several types of goods are exempt from being returned. We also do not accept products that are hazardous materials, flammable liquids, or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. *Special cases might be returned to the manufacturer*

There are certain situations where only partial refunds are granted: (if applicable)
* Book with obvious signs of use
* Any item not in its original condition, that is damaged, or is missing parts for reasons not due to our error.
* Any item that is returned more than 30 days after delivery

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable)
Only regular priced items may be refunded, unfortunately, sale items cannot be refunded.

Exchanges (if applicable)
We only replace items if they are defective or damaged, or if we made the mistake.  If you need to exchange it for the same item, send us an email at and send your item to 304 5th Creek Road, Statesville, NC, 28625, United States.

To return your product, you should mail your product to:
304 5th Creek Road, Statesville, NC, 28625, United States.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.