Late Model Racecraft Gen V LT1 Cylinder head development is underway!
Late Model Racecraft Gen V LT1 Cylinder head development is underway!
We have received our LT1 castings from GM and have already flowed/torn down and started grinding on them. Overall we should have numbers very soon.
Our before numbers were as follows:
Was flowed on a 4.060 bore at 28" of water with a Untouched port and valve job.
lift Intake Exhaust
.200 134 120
.300 204 164
.400 258 193
.500 291 204
.600 285 208
.650 291 210
As you can see our bench seems to read lower than others. 1 other well known shop out there besides us posted 318 as there stock numbers. So dont take final Flow numbers to make decision on whos is best. Flow benches are just like dynos. Used for tuning tools, and to see gains.
And now for some pictures




And now the fun part begins!

Roughed in Exhaust port




Our before numbers were as follows:
Was flowed on a 4.060 bore at 28" of water with a Untouched port and valve job.
lift Intake Exhaust
.200 134 120
.300 204 164
.400 258 193
.500 291 204
.600 285 208
.650 291 210
As you can see our bench seems to read lower than others. 1 other well known shop out there besides us posted 318 as there stock numbers. So dont take final Flow numbers to make decision on whos is best. Flow benches are just like dynos. Used for tuning tools, and to see gains.
And now for some pictures
And now the fun part begins!
Roughed in Exhaust port
Here is some Updated flow numbers (still not finished)
Lift Intake/Exhaust
.200 137/116
.300 208/154
.400 270/197
.500 310/228
.600 331/245
.650 335/252
.700 340/257
.800 345/260
Still have quite a bit more development to do, this was first attempt.
SAM never did one, it was lingenfelter. And im sure Bryant or Winberg could make you one if you were looking to do so.
Thanks, It is looking good so far!
Here is some Updated flow numbers (still not finished)
Lift Intake/Exhaust
.200 137/116
.300 208/154
.400 270/197
.500 310/228
.600 331/245
.650 335/252
.700 340/257
.800 345/260
Still have quite a bit more development to do, this was first attempt.
Here is some Updated flow numbers (still not finished)
Lift Intake/Exhaust
.200 137/116
.300 208/154
.400 270/197
.500 310/228
.600 331/245
.650 335/252
.700 340/257
.800 345/260
Still have quite a bit more development to do, this was first attempt.
Nice numbers!
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