The VFactor 23° v2.70/250cc LBSR is a Large Bore cylinder head. This cylinder head is an excellent option for 421-434 CI engines.
Heads can be purchased bare or fully assembled.
4.155" Fixture .200 142/113 .300 210/155 .400 263/189 .500 293/212 .600 320/230 .700 332/241 .800 342/248 .900 344/252 1.000 346/254
2.820 sq in Avg CSA 2.700 sq in Minimum Size 5.470" Port Length 250cc Runner 1.3020" x 2.300" Opening 2.125" Intake Valve with 33º Back Cut 1.600" Exhaust Valve 64-72cc Chamber
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