- ALL Pro-Filer VFactor 23º Cylinder Heads will be getting a new parts package. All heads will ship with the following as standard equipment. Manley 5/16 Race Master Valves, K-Motion K1650 Chrome Silicone Springs (email@example.com, firstname.lastname@example.org, 1.120 coil bind), Manley Titanium Retainers, Manley 10º Bead Loc Keepers, SRH Locators, Viton Metal Clad Seals. Options are available. Please contact SRH for custom packages per application.
∙VFactor v2.35PF, BURR Holley 300-110- 680hp@7300 NA on 380
∙VFactor v2.50PF, BURR Holley 300-110- 710hp@7200 NA on406
∙VFactor v2.70PF, BURR 2970- 757hp@7200 NA on 434
∙VFactor v3.00PF, BURR 2970- 855hp@8100 NA on 437
∙VFactor v2.70PF, 732hp@7500 NA on 409
∙Get Your Darin Morgan AIST kit here!
Welcome to Speier Racing Heads and the home of the VFactor line of cylinder heads! SRH has become one of the leading suppliers of properly designed powerful CNC heads. We have a strong database of dyno proven and track results, look at our results page! Also please look at our track and dyno proven line burr ported manifolds! From NHRA records to working with major cylinder head companies, let our knowledge work for you! Heads are finished per application with many options! We have cylinder heads for NA, nitrous, and turbo applications! From Comp Eliminator to the weekend bracket warrior, we treat all our customers with the same customer support. We use only the best! PAC, PSI, Victory, Manley, REV, K-Motion, Ferrea, and SRH components. Custom cams and Professional consulting services available. If for any reason you purchase a set of heads from SRH, or have yours ported, and they don't perform like we discuss, send them back and I will work on them until they do, free! Better than any flow data guarantee! Speier Racing Heads now has in-house wet flow capabilities! With the purchase of a Mondello wet flow bench, wet flow testing has become standard for all development.
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