my heads are back from lloyd!!!
12-16-2003, 05:23 PM
#1
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Thread Starter
Join Date: Jun 2002
Location: hudson,florida
Posts: 721
my heads are back from lloyd!!!
got my heads from lloyd got flow sheet with them they might as well be in another language because i do not know what they mean lt1 stock intake 216.6 after 271.9 stock exhaust 156.4 after 194.2 those were max cfm so after lloyd did his magic the heads were 271.9intake 194.2exhaust what does this mean they look georgeous.... thanks
12-16-2003, 05:29 PM
#2
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Join Date: Mar 2002
Location: Waynesboro, PA
Posts: 4,827
The sheet should be broken down into various lifts of .100, .200, .300, .400, .450, .500, .550, .600 and have corresponding before and after flow numbers for each.
Basically, each lift number is how high the valve is lifted per se, and how much the head flows at that given point.
How were the mid lift numbers, from about .400 to .550???
Basically, each lift number is how high the valve is lifted per se, and how much the head flows at that given point.
How were the mid lift numbers, from about .400 to .550???
12-16-2003, 05:56 PM
#4
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Join Date: Aug 2002
Location: Berks County PA
Posts: 982
Re: my heads are back from lloyd!!!
Originally posted by besz28
...the heads were 271.9intake 194.2exhaust what does this mean.... thanks
...the heads were 271.9intake 194.2exhaust what does this mean.... thanks
What all did you have done to the heads?
You just made me feel much better.
12-16-2003, 07:40 PM
#13
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Join Date: Aug 2000
Location: North Vancouver, BC
Posts: 4,305
Don't worry guys, he listens to what you need & ports/valve job accordingly, Mr.Whitey you might have 265 peak flow but what is your flow in the lower numbers? if you have a descent sized cam you need bottom lift numbers, if you have an XE cam, lower lift numbers aren't as important anymore but more/less 400+ lift, so it all depends, you can have a head that flows 287cfm & make 380RWHP & a head that flow 250cfm & makes 405RWHP, mid/low lift numbers are most important, how about you guys post your actual flow sheets on here & we'll be able to tell how good the heads are.
Ps. besz28, you must have had 561 castings if you have 217cfm stock or just a good set? you have about 5cfm over most stock heads.
Ps. besz28, you must have had 561 castings if you have 217cfm stock or just a good set? you have about 5cfm over most stock heads.
