Grind Number​

Valve Lift 1.5​

Valve Lift 1.6​

Duration at .200"
tappet lift​

Duration at .050"
tappet lift​

Advertised Duration
(at .020" lift)​

Lobe Separation Angle​

Opening at .050" tappet lift​

Closing at .050" tappet lift​

HEV3945AS​

INT .546"
EXH .560"​

INT .582"
EXH .597"​

157
163​

239
245​

270
277​

107​

15.5 BTC
52.5 BBC​

43.5 ABC
12.5 ATC​