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SN95 Cobras
_Lariats 97 Cobra build.
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<blockquote data-quote="scottydsntknow" data-source="post: 16070275" data-attributes="member: 79824"><p>Those all crack, don't worry about it. I don't know how much you want to tear into the heads but a good DIY lapping (which would take forever), some Brian Tooley springs and go get them decked. Also want to swap in your 96-98 cams and a proper degree job will pick up as much as 20ft lbs from the stock timing marks. I'd also look into the Cobra engineering passnger secondary tensioner fix as well as the dowel pin upgrade kit. Both known problem areas on the 4V. And do the head cooling mod too. </p><p></p><p>Looks like a fun project tho, should be awesome when its done. For a turbo and 6R80 swap I'd go with a lot less gear than even a 3.55... the Coyote guys run the stock 3.15s or 3.31s with that auto, the first gear in them is THAT STEEP where putting 3.73s in a 6R car is like putting 5.xx gears in a 4R car.</p></blockquote><p></p>
[QUOTE="scottydsntknow, post: 16070275, member: 79824"] Those all crack, don't worry about it. I don't know how much you want to tear into the heads but a good DIY lapping (which would take forever), some Brian Tooley springs and go get them decked. Also want to swap in your 96-98 cams and a proper degree job will pick up as much as 20ft lbs from the stock timing marks. I'd also look into the Cobra engineering passnger secondary tensioner fix as well as the dowel pin upgrade kit. Both known problem areas on the 4V. And do the head cooling mod too. Looks like a fun project tho, should be awesome when its done. For a turbo and 6R80 swap I'd go with a lot less gear than even a 3.55... the Coyote guys run the stock 3.15s or 3.31s with that auto, the first gear in them is THAT STEEP where putting 3.73s in a 6R car is like putting 5.xx gears in a 4R car. [/QUOTE]
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_Lariats 97 Cobra build.
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