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What kind of 428 head? By Gerry Proctor - 04/21/2006 2:19:15 PM; IP 137.242.1.15 The only 428 head that is a step up from a 390 head is the 428CJ head (C8OE-N casting typical). All other 428 heads(or better, heads that were on a 428, since there was only one 428 that got a distinct head, the CJ) are the same as heads used on 352/390. If it's not a CJ head, then you haven't moved the ball down field at all. As to whether it's worth it to install even a CJ head on a TBird depends on what you expect. Unless it's part of an exhaust, cam, and intake upgrade, I'd say probably not. As to other issues...a good free-flowing exhaust is always going to be your best bang for the buck. Doing anything else before you do the exhaust is usually not worth while.

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Skip Navigation Links.  T-bird 390 -- Mike, 04/21/2006 What kind of 428 head? -- Gerry Proctor, 04/21/2006  RE: What kind of 428 head? -- hot428ford, 04/21/2006  RE: T-bird 390 -- Beganit2, 04/22/2006  RE: T-bird 390 -- Mike, 04/22/2006   T-bird 390 -- hot428ford, 04/23/2006

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