Match Race 1972 ~ 'Road Runner/GTX 440' vs. 'Buick GS 455'
Camshaft vs. Camshaft
Engine..........Mopar 440/290 HP...........Buick 455/270 HP 'Stage 1'
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Type...................'Hydraulic' ......................... 'Hydraulic'
Lift 'Intake'............. .467" .............................. .490"
Lift 'Exhaust'........... .483" .............................. .490"
Duration 'Intake'..... 268* ............................... 316*
Duration 'Exhaust'... 284*................................ 340*
Overlap..................... 46* ................................. 90*
Center-Line.............. 115* ............................... 113*
Valve Spring..... Single Coil w/Damper ........ Single Coil w/Damper
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Valve Closed..... #129 lbs. @ 1.845" ............ #125 lbs. @ 1.727"
Valve Open....... #279 lbs. @ 1.370"............. #272 lbs. @ 1.227"