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HTL Series Cam Profiles (Small Block)

8/29/2016

Grind Number Valve Lift 1.5 Valve Lift 1.6 Duration @.050" Lobe Separation Opening at .050" Closing at .050" Springs for 1.5 Springs for 1.6  Tappet Lift  Angle  Tappet Lift Tappet Lift                   HTL3742AS INT .531" INT .566" 237° 108° 13° BTC 44° ABC 1129 1129 EXH .542" EXH .578" 242° 52° BBC 11° ATC HTL4248AS INT .542" INT .578" 242° 106° 18° BTC 53° ABC 1129 1129 EXH .560" EXH .597" 248° 45° BBC 15° ATC HTL4652AS INT .549" INT .586" 246° 106° 20° BTC 46° ABC 1129 1129 EXH .567" EXH .605" 252° 56° BBC 17° ATC HTL4852AS INT .563" INT .569" 248° 106° 21° BTC 47° ABC 1129 1129 EXH .600" EXH .606" 252° 55° BBC 17° ATC HTL5256AS INT .569" INT .606" 252° 106° 24° BTC 49° ABC 1129 1129 EXH .575" EXH .613" 256° 57° BBC 19° ATC HTL5660AS INT .572" INT .610" 256° 106° 26° BTC 51° ABC 1129 1129 EXH .582" EXH .621" 260° 59° BBC 21° ATC HTL6064AS INT .531" INT .566" 260° 106° 27° BTC 53° ABC 1129 1129 EXH .543" EXH .579" 264° 61° BBC 24° ATC HTL6468AS INT .621" INT .662" 264° 106° 30° BTC 54° ABC 1129 1129 EXH .632" EXH .674" 268° 64° BBC 24° ATC HTL6872AS INT .611" INT .651" 268° 106° 31° BTC 65° ABC 1129 1129 EXH .620" EXH .661" 272° 57° BBC 27° ATC HTL7276AS INT .611" INT .651" 272° 106° 33° BTC 59° ABC 1129 1129 EXH .627" EXH .669" 276° 67° BBC 30° ATC HTL7680AS INT .629" INT .670" 276° 106° 35° BTC 61° ABC 1129 1129 EXH .633" EXH .675" 280° 69° BBC 31° ATC HTL8087AS INT .633" INT .675" 280° 106° 37° BTC 72° ABC 1129 1129 EXH .641" EXH .683" 287° 72° BBC 35° ATC