Match Race 1972 ~ 'Road Runner/GTX 440' vs. 'Buick GS 455'
O-M-R
1972 Buick GS 455
Engine..................Intake / Exhaust...........Camshaft.............................................
* 455/225 HP....... 2.005" / 1.630" .......... .397" /.466" .... 258*/268* {Automatic only}
* 455/250 HP...... 2.005" / 1.630" .......... .397"/.466" ..... 260*/276* {4-Speed only}
* 455/270 HP...... 2.130" / 1.755" .......... .490"/.490"...... 316*/340*......'Stage I'
Stage I Cylinder Head