blue thunder alum cj heads

[feetfirst]

anybody have or know where i can find flow data & specs on these heads?

[ccso640]

Might check over at www.460ford.com. Look in the engine archives section. Chris

[CraigT]

Here is what they did: B/T CJ style Ford Ex.
Valve Size 2.250 int 1.800" ex
Test Bore 4.400"
No Pipe on EX.

Here is what they do from Blue Thunder As Cast with valve job
.100" 70 49
.200" 120 83
.300" 169 121
.400" 221 150
.450" 250 163
.500" 279 173
.550" 301 182
.600" 315 189
.650" 321 191
.700" 330 191
.750" 336 193
.800" 341 194
.850" 347 195

This is with our bowl blend, valve job and CNC chamber.

.100" 78 62
.200" 167 114
.300" 219 147
.400" 280 175
.450" 306 185
.500" 322 195
.550" 324 205
.600" 335 211
.650" 344 218
.700" 354 225
.750" 359 236
.800" 364 242
.850" 373 246