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Are these good flow number for ported ls1 heads?bluecmaro96 05-19-2004, 10:19 PM Intake: 100 - 75cfm 200 - 139 300 - 210 400 - 248 500 - 268 600 - 280 Exhaust: 100 - 50 200 - 103 300 - 140 400 - 184 500 - 201 600 - 207 NBS4 05-19-2004, 11:50 PM Originally posted by bluecmaro96 Intake: 100 - 75cfm 200 - 139 300 - 210 400 - 248 500 - 268 600 - 280 Exhaust: 100 - 50 200 - 103 300 - 140 400 - 184 500 - 201 600 - 207 Kinda Weak... How Much? www.Patriot-performance.com Terry OWNS 94TA25ann 05-20-2004, 01:03 AM You can make LT1 castings flow better than that. Demon SS 05-20-2004, 06:53 AM keep in mind that flow numbers are just a tool (like dyno numbers) and a lot of things will/can come into play. port volume, velocity etc. just because a heads flows big numbers does not mean it is a "good" set of heads, again a lot of things come into play here. our stage 1 "budget" heads flow something like this Flow numbers are Lift Intake Exhaust .200 153 118 .300 212 166 .400 243 183 .500 281 212 .600 293 221 intake port volume is 212cc exhaust is 78cc | ||