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    260 V8 Engines In here- Need Help

    A bit over simplified, but a (stock 289/302) 1.78" intake valve is to a 260 as a 2.06" valve to a 302. So, a stock 289 valve is not as small as it seems in terms of valve area per cubic inch. Also, the 1.78" valve is as close to the wall of a 3.80" bore as a 1.98" valve is to a 4.00" bore...
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    Distributor recurve

    I did it the same way. My Duraspark had too wide advance slots, so I welded them up and filed them back into shape, but with smaller slots. Then I adjusted the advance rate with different springs.
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    Took some Pictures of the K fastback I worked on the past 11 Monthes

    Looks nice. Especially the Webers :) I'm not a fan of front spoilers on the early cars though. They look great on a Boss 302, but not on a 65-66 for some reason. Lowering the car a little would also improves the looks, I think.
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    The engine builders "black art" (AKA Rod ratio)

    Yes, it has longer rods than a 302, but that's not a LONG ROD engine, but a short rod engine. The term LONG ROD is of course just short for "high rod ratio", it doesn't refer to the actual length of the rod. I doubt that 5.09 rods are long enough to provide clearance for a 3.50" stroke...
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    Torsional rigidity test: 67 coupe

    With all the heim joints, the TCP braces can only aborb push/pull forces along their length. That is of course the main job of these type of reinforcements and that's what gives the main contribution to the strength, but I don't really see the point of making a brace that's free to pivot in all...
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    The engine builders "black art" (AKA Rod ratio)

    Keep in mind that racing engines that are running 5 seconds at a time have different requirements than those that run 500 miles at a time. What works best for an endurance engine doesn't necessarily apply to a 2500+ drag racing engine.
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    Torsional rigidity test: 67 coupe

    Exactly!
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    Torsional rigidity test: 67 coupe

    Even with the tube as close to the inner fender like you have it now? Well, I assume you put more thought into into it than I have. I need to remind myself that you're not really that guy with his inflateable penis :D
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    The engine builders "black art" (AKA Rod ratio)

    To all of you who make all kinds of claims about how the rod lenght affects the combustion process, have you ever calculated the differences in piston position and combustion chamber volume, like blkfrd (and me) did? I think you will be surprised.
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    1967 wheel swapping fun (with modem-choking pictures goodness)

    Don't get me wrong, +1" is hardly an industry standard. I just read it somewhere once and when I calculated it for some wheels, it seemed to be correct. I guess taking the lip into account makes the difference. BTW, I like your car, despite the paint. You're not making much progress either...
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    1967 wheel swapping fun (with modem-choking pictures goodness)

    Actual rim width is actually about 1" wider than the "advertised" width. For a Torq Thrust wheel, that means: 7+1=8", 4" BS = zero offset, 3.75" BS = 1/4" (or 6 mm) negative offset. If you check the American Racing website, you'll find that they are listed with -6 mm offset.
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    Torsional rigidity test: 67 coupe

    I think it's a good idea, but I would have designed it differently. Now it attaches quite a bit in front of the area were the chassis is loaded. Attaching it just in front of the upper A arm would help more. Also, The way it is designed now, there is a long horizontal section which can bend...
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    Better motion ratio?

    I believe Formula type cars use cantilever setups to increase spring/shock travel, rather than to reduce it. With their stiff suspensions, these cars have very little wheel travel. I'm not an expert on this, but I can imagine that precise shock absorbtion becomes difficult to achieve with...
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    Crown Vic rear disks, a new idea

    Maybe Ultrastang meant that his Mom wouldn't appreciate it if her son would drill alternative bolt patterns in her caliper brackets :D
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    Mustang Drop Spindles

    That would be neat. Especially if it had slotted holes, so that you can adjust bump steer. That would save the customer $150-200 for a bumpsteer kit and make the spindles even more desirable.
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    Piston selection for about 10:1 compr.

    The links you provided show the same piston. They look like replacements of the forged Ford 5.0 HO pistons. I doubt that the valve reliefs are large enough for the larger valves of the head's you're planning to use. I ran into that problem with the forged Speed Pro pistons I have in my...
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    Piston selection for about 10:1 compr.

    You should be able to find the piston specs here with a little bit of clicking: http://21cgt.com/FMWebCatalog/default.htm
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    Piston selection for about 10:1 compr.

    Another piston alternative are Speed Pro H120's. They have much smaller valve reliefs and a taller deck height of 1.619. The valve reliefs are big enough for larger than stock valves, but there are only two instead of four huge ones (like the 273's have). They also use thinner piston rings...
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    Who has the best disc conv. kit

    It's just that bigger brakes (like the Cobra setup, with 13" rotors) offer improved braking performance. However, due to their size you need 17" wheels to make it all fit. I understand what you mean, but most practical wheel/tire combos have about the same diameter (within an inch or so), so...
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    Torsional rigidity test: 67 coupe

    I'm curious what you would get if you used all the convertible reinforcements on a hardtop (extra rockers, boxing under seats, torque boxes, one piece seat riser, etc.). SN65 is doing something like that at the moment, but I don't think he has posted the end results yet. One nice thing about...
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