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  #1  
Old 03-19-2017, 04:58 AM
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KenMaisano KenMaisano is offline
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Default 1973 455 Super Duty Dyno Results
Thought i would share some info on a recent Dyno study.
Engine SD 455 .005 over clean up W/ torque plate
increased compression from a calibrated 8.6to1 to 9.0 to1
original camshaft was 226 236 .410 114
new camshaft 221 232 .500 112
heads#16 completely stock
original exhaust manifolds,LS intake, 240 Q jet, 208 Dist.
Full Balance and Blueprint Build.
Torque @ 3800 485
Horse Power @ 5200 415

Ken Maisano
Mascar Classics
Last edited by KenMaisano; 03-19-2017 at 05:18 AM.
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  #2  
Old 03-19-2017, 10:35 AM
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Very nice numbers! Got any video of the dyno run? I'd love to see/hear it.
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Old 03-19-2017, 12:01 PM
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Good swap on the cam. Bet that torque curve was real broad?
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Old 03-19-2017, 03:09 PM
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Very cool!
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Old 03-19-2017, 06:47 PM
tjs44 tjs44 is offline
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Ken,any reason for not going up a touch on duration also?Those engine seem to really like the 230-236 range along with the added lift?Tom
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Old 03-19-2017, 09:02 PM
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Quote:
Originally Posted by tjs44 View Post
Ken,any reason for not going up a touch on duration also?Those engine seem to really like the 230-236 range along with the added lift?Tom

I wanted to keep it all stock with a smooth idle. Tightening up the lobe center already added overlap.
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