Does anyone out there in Studedom have an R3 head gasket (new or used) that they wouldn't mind posting (or PM'ing me) a semi-closeup picture of? I need to get a good idea what the bore shape looks like.
The stock/R2 head gasket won't allow me to make my next step in head porting and I think the R3 gasket will. Ya expensive, but I think flow and overall power can be increased notably with moving the valve into the center of the port...just like the R3 engineers did!
The good - it would allow much better flow on both "sides" of the port/bowl, it would leave most of the material in place between the intake and exhaust ports, the roof of the port can now be made more symetrical to allow equal flow on both sides of the valve guide. This IS afterall, where the high lift, high speed flow is located.
The bad - gasket cost, bigger notch in the cylinder bore to match the chamber shape.
Both of these (bads) are acceptable (to me) for more low, mid, and full lift flow. In theory!
Thanks
Mike
The stock/R2 head gasket won't allow me to make my next step in head porting and I think the R3 gasket will. Ya expensive, but I think flow and overall power can be increased notably with moving the valve into the center of the port...just like the R3 engineers did!
The good - it would allow much better flow on both "sides" of the port/bowl, it would leave most of the material in place between the intake and exhaust ports, the roof of the port can now be made more symetrical to allow equal flow on both sides of the valve guide. This IS afterall, where the high lift, high speed flow is located.
The bad - gasket cost, bigger notch in the cylinder bore to match the chamber shape.
Both of these (bads) are acceptable (to me) for more low, mid, and full lift flow. In theory!
Thanks
Mike
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