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Qwest for more RPMS or Cubic Inches
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<blockquote data-quote="Ryushin" data-source="post: 8754459" data-attributes="member: 38551"><p><strong>Quest for more RPMS or Cubic Inches</strong></p><p></p><p>So it's been one of my goals to put a Ford GT block under my hood. But the amount work to get it to fit, and to clear the stock hood, not to mention all the custom work that has to be done, just makes it seem like it's going to be huge monetary investment to get this work. I was budgeting about 12-15K for an built engine, and at this point, I think the Ford GT block, is going to put it closer to 20-25K.</p><p></p><p>So this got me thinking about alternatives.</p><p></p><p>One method would be just to build an engine that can handle 8000 RPM and get the higher revs to build the power needed to compete with the 5.4 liter. I was looking on Nasty's site, and his stage III port includes everything so the heads can run at 8000+ rpm.</p><p><a href="http://www.naztyperformance.com/heads.html" target="_blank">Nazty Performance -Your Source!</a></p><p>So the question is, can a coated piston and the appropriate coated rings work at 8000 rpm and not put to much stress on the cylinder side wall to crack it. Al Papito said in an interview in MM&FF, that the bottom of the cylinder wall is the weak spot for the 4.6 engine and that he's seen it crack there. So I don't know if running 8000 rpm is just going to put too much stress on the lower cylinder wall or not.</p><p></p><p>So I was really thinking of the higher RPM plan, until I came across this doing research:</p><p><a href="http://www.stangtv.com/forum/4-6-ford-modular-short-blocks-5809.html" target="_blank">4.6 Ford Modular Short Blocks – A Guide to a Bottom End for Boost - Stang TV Forums</a></p><p>In the article, when it talks about the blocks themselves, it mentions "There are a few aftermarket companies that offer big-bore sleeve kits for aluminum factory blocks to increase the bore up to 94mm (3.700”)." So take this and couple it with a 302 stroker kit would give us 323 cubic inches in a 4.6 block Essentially a 5.4 liter.</p><p></p><p>So if I can take a teksid block, put in the big-bore sleeve kits, and run Nazty's ported heads, and build it strong enough to handle a 7500 rpm red line, then this motor will hopefully get me over 700 rwhp on pump gas with a twin screw.</p><p></p><p>Any thoughts on this? Is it doable?</p></blockquote><p></p>
[QUOTE="Ryushin, post: 8754459, member: 38551"] [b]Quest for more RPMS or Cubic Inches[/b] So it's been one of my goals to put a Ford GT block under my hood. But the amount work to get it to fit, and to clear the stock hood, not to mention all the custom work that has to be done, just makes it seem like it's going to be huge monetary investment to get this work. I was budgeting about 12-15K for an built engine, and at this point, I think the Ford GT block, is going to put it closer to 20-25K. So this got me thinking about alternatives. One method would be just to build an engine that can handle 8000 RPM and get the higher revs to build the power needed to compete with the 5.4 liter. I was looking on Nasty's site, and his stage III port includes everything so the heads can run at 8000+ rpm. [url="http://www.naztyperformance.com/heads.html"]Nazty Performance -Your Source![/url] So the question is, can a coated piston and the appropriate coated rings work at 8000 rpm and not put to much stress on the cylinder side wall to crack it. Al Papito said in an interview in MM&FF, that the bottom of the cylinder wall is the weak spot for the 4.6 engine and that he's seen it crack there. So I don't know if running 8000 rpm is just going to put too much stress on the lower cylinder wall or not. So I was really thinking of the higher RPM plan, until I came across this doing research: [url=http://www.stangtv.com/forum/4-6-ford-modular-short-blocks-5809.html]4.6 Ford Modular Short Blocks – A Guide to a Bottom End for Boost - Stang TV Forums[/url] In the article, when it talks about the blocks themselves, it mentions "There are a few aftermarket companies that offer big-bore sleeve kits for aluminum factory blocks to increase the bore up to 94mm (3.700”)." So take this and couple it with a 302 stroker kit would give us 323 cubic inches in a 4.6 block Essentially a 5.4 liter. So if I can take a teksid block, put in the big-bore sleeve kits, and run Nazty's ported heads, and build it strong enough to handle a 7500 rpm red line, then this motor will hopefully get me over 700 rwhp on pump gas with a twin screw. Any thoughts on this? Is it doable? [/QUOTE]
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