Bbc 454 build.
01-11-2019, 07:46 AM
#61
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some gm service head for the corvette,,semi closed chamber.its been to long to remember the p/n.
01-11-2019, 10:47 AM
#63
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01-19-2019, 06:21 AM
#64
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Thread Starter
Any idea what is the primary runner lenght/diameter off gill/stainles marine manifolds? Cant find any info.
02-05-2019, 01:53 AM
#65
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Thread Starter
First flow test done. Step 1. Intakes: slightly cleaned valve throat. Exhaust: stock. Test pressure 10", results converted to 28"
Head casting: 14092360.
good port
0.100=65cfm
0.200=144cfm
0.300=207.5cfm
0.400=243cfm
0.500=263cfm
0.550=266cfm
0.600=266cfm
Head casting: 14092360.
good port
0.100=65cfm
0.200=144cfm
0.300=207.5cfm
0.400=243cfm
0.500=263cfm
0.550=266cfm
0.600=266cfm
Last edited by JaniH; 02-05-2019 at 02:08 AM.
02-05-2019, 01:57 AM
#66
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Thread Starter
bad port
0.100=62.5cfm
0.200=145.5cfm
0.300=211.5cfm
0.400=233cfm
0.500=244.5cfm
0.550=251cfm
0.600=252.5cfm
0.100=62.5cfm
0.200=145.5cfm
0.300=211.5cfm
0.400=233cfm
0.500=244.5cfm
0.550=251cfm
0.600=252.5cfm
02-05-2019, 02:03 AM
#67
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Thread Starter
Exhaust, no pipe.
0.100=50cfm
0.200=94cfm
0.300=128cfm
0.400=157cfm
0.500=175cfm
0.550=180cfm
0.600=185cfm
0.100=50cfm
0.200=94cfm
0.300=128cfm
0.400=157cfm
0.500=175cfm
0.550=180cfm
0.600=185cfm
02-06-2019, 02:45 AM
#68
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Thread Starter
What you thing about ferrea 5000 series valves? Planned to use 6000 series valves but ferrea dont offer 1.72" exhaust valve, 1.88" is the smallest.
02-06-2019, 09:00 AM
#69
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try rev,manley and even PEP automotive parts,they may have a quality stainless steel valve.
02-06-2019, 12:24 PM
#70
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