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Discussion Starter #1
Tom and his crew at KTL posed this question. We need to get a repro engine tag made for my 70 Eliminator with 428 SCJ. The cobrajet 428 website does not list an engine tag code for this car, which has an automatic tranny. I have seen anything form 422S to 426T. Any ideas, or better yet anyone with an original? Thanks!
 

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Joe, in The Mustang & Cougar Tagbook, the code for a '70 428SCJ with an automatic is 425 (under comments it says Drag Pack). The suffix after the number can range from the letter A-H according to TM&CTB. The letters are based on a 3 year cycle, A-H for 64,67,70 & 73. J-R for 65,68 & 71. And S-Z for 66,69 & 72. Now if your 428SCJ is a Non-thermactor, there might be a letter K in front of the 425, if it is a Thermactor it might be blank. In TM&CTB it shows a prefix of the letters CN for Canadian non-emission (from 65-71), K for a Non-thermactor from 67-70 & No prefix for a Thermactor from 68-71. So, for example lets say your 428SCJ is a non-thermactor, the engine code might be K 425 A-H or if it's a thermactor it might be 425 A-H. Hope this helps. John :) Edit: The letter I & O were left out so it wouldn't be confused for the number 1 or 0.
 

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Discussion Starter #3
That was very helpful. Thanks so much!
 

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You're welcome Joe.
 
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