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78 chevy truck 11-11-2003 01:27 PM

flow
 
Manu. CC Port/Vol CCVolume
Chevy '336x 76cc 81.67% 55/45
In/Ex .100" 81.82% 110/83
In/Ex .200" 75.45% 160/118
In/Ex .300" 73.75% 194/133
In/Ex .400" 68.56% 197/140
In/Ex .500" 72.64% 201/146
In/Ex .600" 72.91% 203/148
In/Ex .700" 72.35% 205/150
In/Ex .800" 73.03% 206/157
In/Ex Average 173.6/125.6/1.310


can some one tell me what all this means about my heads i have no clue what it means thanks

some one

lluciano77 11-11-2003 01:47 PM

Re: flow
 
Quote:

Originally posted by 78 chevy truck
Manu. CC Port/Vol CCVolume
Chevy '336x 76cc 81.67% 55/45
In/Ex .100" 81.82% 110/83
In/Ex .200" 75.45% 160/118
In/Ex .300" 73.75% 194/133
In/Ex .400" 68.56% 197/140
In/Ex .500" 72.64% 201/146
In/Ex .600" 72.91% 203/148
In/Ex .700" 72.35% 205/150
In/Ex .800" 73.03% 206/157
In/Ex Average 173.6/125.6/1.310


can some one tell me what all this means about my heads i have no clue what it means thanks

some one

The .100" is how much the valve is open. 81.82% is the exhaust flow compared to the intake in percentage. The intake always flows more. 110/83 are intake/exhaust CFMs.

78 chevy truck 11-11-2003 01:55 PM

is this good or bad

lluciano77 11-11-2003 02:19 PM

That is a matter of opinion. Bad for performance. Okay for economy.

78 chevy truck 11-11-2003 02:29 PM

what if i ported them? they worked really good on my truck my truck ust to fly like hell


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