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By RB - 15 Years Ago
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11:1 ,big cam, ported iron heads, Blue Thunder intake. Cam is too radical for a street car but it sure sounds nice
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By charliemccraney - 15 Years Ago
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Excellent! Looks like the hp was still climbing at 6600rpm!
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By LordMrFord - 15 Years Ago
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What is cam specs?
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By grovedawg - 15 Years Ago
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Excellent build. I'm also curious as to what the cam specs were.
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By RB - 15 Years Ago
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The camshaft is Isky lobe number S-539
288/288 @ .020 258/258 @.050 .365 lobe lift 108 LSA .015 lash
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By BFOOTER03 - 15 Years Ago
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Very nice results and I will agree with Charlie that HP numbers were still going up. If you get a chance post a video of it running. I would love to hear it.
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By Ted - 15 Years Ago
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Great numbers Royce. I’ll assume a forthcoming article for the Y-Block Magazine is in the works? Keep up the good work.
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By pegleg - 15 Years Ago
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WHOA. That t'bird's going to Boogie!
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By Daniel Jessup - 15 Years Ago
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Wow! Check out those torque specs too! Pretty dog-gone stout! 
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By mctim64 - 15 Years Ago
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Wow! Very Strong!  Good job!
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By 57FordPU - 15 Years Ago
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Royce, Congratulations on a great effort. That is a solid 1.3 hp per cu. in. (WOW!). And the torque kept climbing to 5000 rpm and remained relatively flat. What ever this engine is destined for is going to fly.
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By RB - 15 Years Ago
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I don't have a home for this motor at present.. I want to try some other things on it before I put it in a chassis.
A few more details.. 312 block bored .030 312 Crank offset ground to 3.62 stroke with 2" rod journal
Rods are NASCAR used. 6.5 " Light I beams with 19mm wrist pin (tiny). I had Wiseco make a custom forged piston with 1/16 1/16 3/16 ring package and 10cc dome. Heads are nicely ported and have 2 inch intake 1.6 exhaust 71 cc chambers. Blue Thunder intake also ported. Cam I mentioned earlier. Static compression comes in between 11 and 11.25:1 Best power was a Holley 850 Double pumper on 110 gas. Best torque was a 750 DP running E-85
I intended to run it out to 7000 rpm but anyone who has done a dyno session kows what a thrash it can be, and I simply forgot. Power had pretty much peaked at 6600 and the dyno operatior does not like going higher unless asked.
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By John Mummert - 15 Years Ago
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Excellent job Royce! Those are some very impressive numbers. Now all you need is your pilot's license.
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By Y block Billy - 15 Years Ago
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Wow! Very impressive Royce! since you don't have a home for it, I sure do.
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