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Discussion Starter · #1 ·
I just purchased engine simulation software and wanted to run some tests on a stock v-rod engine. Does anyone have specs for the stock cylinder heads (port flow cfm, int. and exh. valve sizes, ect). Can't seem to find any help on the web. Also, stock cam specs would be a huge help to me as well.

Thanks in advance for the help.
 

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The Hawk
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This is from memory so take it at that. Intake valves are 40mm, exhaust are 34mm. Stock cams specs are on here, use search for that.

Mike
 

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Blacklistd said:
I just purchased engine simulation software and wanted to run some tests on a stock v-rod engine. Does anyone have specs for the stock cylinder heads (port flow cfm, int. and exh. valve sizes, ect). Can't seem to find any help on the web. Also, stock cam specs would be a huge help to me as well.

Thanks in advance for the help.
stock 02 head intake flows 160 @.300 184 @ .400 194 @ .500 at 10 inches water column 1.578 valve. the cnc se heads flow 5 more cfm at .500 and are about the same as stock below .300 .
the exhaust flows 131 @ .300 151 @ .400 158 @ .500 at 10 inches 1.355 ex valve size. if i remember i will bring the cams specs from work tomorow.
 

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Color me Gone
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Well the se cams are

Intake - 112 +/- 1 degree
Exhaust - 106 +/- 1 degree
Total intake lift - 10.9mm (0.4291")
Duration, intake @ 1mm - 248 degrees
Total exhaust lift - 9.98mm (0.3929")
Duration, exhaust @ 1mm - 206 degrees

and from what I understand the only difference is the intake cam is 106 degrees instead of 112.
 
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