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The Terminator
Terminator Talk
Mark VIII motor in 2004 cobra
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<blockquote data-quote="Corbic" data-source="post: 15453923" data-attributes="member: 171475"><p>If you'd had a running engine and was thinking of going through this hassle just for weight savings... I'd pass.</p><p></p><p>However since you are looking to build an engine, and since it's only 800hp, I personally would go aluminum.</p><p></p><p>80lbs is a big impact, add in a crossmember and arms and you can drop some serious pounds of the car.</p><p></p><p>In my notes I show a Teksid is 85lbs and the Iron Block is 152lbs.</p><p></p><p>According to MMR</p><p></p><p>WAP blocks are good to 800whp. If you debur/smooth the window mains they are good to 1,000whp.</p><p></p><p>MMR also states the Teksid is good to 1,000whp, debur/smooth for 1,200. Beyond that you'll need to fill the water jackets because of cylinder distortion.</p><p></p><p>Iron blocks have all the same issues but at 1,200 and 1,400 instead.</p><p></p><p>Once again, sourcing MMR (for whatever that's worth).</p><p></p><p>I've also seen plenty of internet hearsay that the later WAPs are just as strong as a Teksid and most of the Ferrari Teksid fanboism is just because people get hooked on crap.</p><p></p><p>So whatever you do, just make sure a competent shop does the block prep and watch out for old abused and damaged Teksids.</p></blockquote><p></p>
[QUOTE="Corbic, post: 15453923, member: 171475"] If you'd had a running engine and was thinking of going through this hassle just for weight savings... I'd pass. However since you are looking to build an engine, and since it's only 800hp, I personally would go aluminum. 80lbs is a big impact, add in a crossmember and arms and you can drop some serious pounds of the car. In my notes I show a Teksid is 85lbs and the Iron Block is 152lbs. According to MMR WAP blocks are good to 800whp. If you debur/smooth the window mains they are good to 1,000whp. MMR also states the Teksid is good to 1,000whp, debur/smooth for 1,200. Beyond that you'll need to fill the water jackets because of cylinder distortion. Iron blocks have all the same issues but at 1,200 and 1,400 instead. Once again, sourcing MMR (for whatever that's worth). I've also seen plenty of internet hearsay that the later WAPs are just as strong as a Teksid and most of the Ferrari Teksid fanboism is just because people get hooked on crap. So whatever you do, just make sure a competent shop does the block prep and watch out for old abused and damaged Teksids. [/QUOTE]
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Mark VIII motor in 2004 cobra
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