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New Edge Cobras
4.6 Rebuild or Coyote Swap?
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<blockquote data-quote="autoxbob" data-source="post: 16895854" data-attributes="member: 171318"><p>My 99 SVT Cobra has been in the family since my brother bought it new. He passed and willed it to my son. We autocrossed it and used for a daily driver. Son decided he didn't want to keep it, and I now own it. I plan to keep it for my grand kids.</p><p></p><p>It has little over 150000 miles on it and six seasons of just-for-fun Autocrossing. Still runs and drives ok, but is scruffy and tired.</p><p></p><p>I'm planning a restore project. The powertrain is the first stage. There are two basic options for the powertrain: </p><p></p><p>1) Overhaul and rebuild the 4.6, add a blower to get about 500 HP, rebuild clutch and trans. This is assuming the block, heads, etc. still look good after a tear-down.</p><p></p><p>2) Swap in a Coyote making 500+ HP, new clutch, trans, and all that goes with it.</p><p></p><p>I'm not up to doing this myself. I have estimates for the 4.6 rebuild at about $20-25K, and about $30-40k for the Coyote swap.</p><p></p><p>I expect to continue to Autox and drive no more than 2000 miles per year for about another 10 years.</p><p></p><p>My main worry about the 4.6 is reliability and maintainability. Will it last another 10 years? 20 years? If it breaks and can't be fixed, the lower initial cost is a bad trade.</p><p></p><p>What would you do?</p></blockquote><p></p>
[QUOTE="autoxbob, post: 16895854, member: 171318"] My 99 SVT Cobra has been in the family since my brother bought it new. He passed and willed it to my son. We autocrossed it and used for a daily driver. Son decided he didn't want to keep it, and I now own it. I plan to keep it for my grand kids. It has little over 150000 miles on it and six seasons of just-for-fun Autocrossing. Still runs and drives ok, but is scruffy and tired. I'm planning a restore project. The powertrain is the first stage. There are two basic options for the powertrain: 1) Overhaul and rebuild the 4.6, add a blower to get about 500 HP, rebuild clutch and trans. This is assuming the block, heads, etc. still look good after a tear-down. 2) Swap in a Coyote making 500+ HP, new clutch, trans, and all that goes with it. I'm not up to doing this myself. I have estimates for the 4.6 rebuild at about $20-25K, and about $30-40k for the Coyote swap. I expect to continue to Autox and drive no more than 2000 miles per year for about another 10 years. My main worry about the 4.6 is reliability and maintainability. Will it last another 10 years? 20 years? If it breaks and can't be fixed, the lower initial cost is a bad trade. What would you do? [/QUOTE]
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4.6 Rebuild or Coyote Swap?
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