[HP HUNTER]

In the picture its hard to see but both the intake and exhaust valves are sunk quite a bit, probably to get CCs and piston to valve clearance, which I will check so I can get my heights setup before any work is done. Flow testing was done @ 28 inches, 4.350 bore, SF 600.

Short port:

.100 73
.200 131
.250 154
.300 181
.350 208
.400 232
.460 243

Long port:

.100 73
.200 132
.250 161
.300 185
.350 210
.400 235
.460 257


Exhaust: No pipe


.200 107
.300 131
.400 152
.480 165

One thing to note, when a BBC head is flat milled to the extent this head is, flow is lost, although I understand CCs have to be met some way, it's definitely a juggling act. At this point I will clean the head, then locate the highest (closes to the piston) intake and exhaust valve and check piston to valve clearance then CC the chambers, after this the cylinder head restoration will start with pictures. If anyone has flow data for this type of casting in Stock Eliminator trim casting numbers, please feel free to post along with opinions.

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