v2.50PF/23º
2.47in² MIN 64-72cc chamber 1.320 x 2.230 opening Fel Pro 1206 (trim) 2.53in² AVG CSA 5.47 port length 227cc runner 2.080 intake w/33º BC 1.600 exhaust 4.155 fixture .200 141/113 .300 201/155 .400 248/189 .500 290/212 .600 318/230 .700 325/241 .800 330/248 .900 334/252 1.00 338/254 NOTES I = -.050/SRH1115 E= -.150/SRH1005 I = -.065/Manley .310 E = -.120/Manley .310 I = .00/SRH2100/SRH50 E= .100/SRH1600/SRH45 |
The VFactor v2.50PF/23º has quickly become a favorite among engine builders and racers Worldwide! This cylinder head is a very popular choice for 406-421's. You need a .150 offset stud rocker to fit a 3/8 pushrod.
∙VFactor v2.50PF- 640/585 wHR Pump Gas on 420, Edelbrock 2925 HERE ∙VFactor v2.50PF- 710hp@7200 NA on 406, BURR Holley 300-110 ∙VFactor v2.50PF- 660@6400 Pump Gas on 421, Edelbrock 2982 This cylinder head just won a NHRA National Event in Super Comp! YES, a SBC won Super Comp!!!-2018 Heartland Nationals VFactor v2.50PF/23º
Fully CNC SRH priority ProFiler casting, Custom Multi-Angled Valve Job, MLS Surface finish, Guides Sized. OPTIONS
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