Lloyd Elliot 243 stage 1 flow numbers
Lloyd Elliot 243 stage 1 flow numbers I had a set of 243 LS1 heads ported by Lloyd and his customer service was great. His price was great so it left some speculation. I had them flowed next to a stock set of 243 heads I had on the shelf clean and ready to bolt on. For the money, I feel the results were better than I expected for sure.
PORTED IN EX STOCK IN EX
.200 156 118 144 97
.250 187 130 168 109
.300 216 148 194 125
.350 239 164 215 138
.400 251 177 229 153
.450 263 186 241 164
.500 275 196 250 175
.550 282 209 258 184
.600 287 216 Gains stopped
.650 293 219
PORTED IN EX STOCK IN EX
.200 156 118 144 97
.250 187 130 168 109
.300 216 148 194 125
.350 239 164 215 138
.400 251 177 229 153
.450 263 186 241 164
.500 275 196 250 175
.550 282 209 258 184
.600 287 216 Gains stopped
.650 293 219
LS6 cams take 243 heads to the edge of there flow limits so I am going to go as fast as I can with a stock cam, sound, and look. Trending Topics
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I'd be curious to know as well.
I believe it is for such a small port job but it does make some difference. If I get a chance I will cc the runner and post it up.
Those are similar numbers I get out of a 243 head on stock valves. I really wouldn't worry about port volume so much and think its very bad way to judge a cylinder head. I like the fact that his port didn't stall at .600 which takes some work to achieve. Is there a better program out there sure there is, but for the price he paid I bet he got a pretty good deal.
Anyone have a comparison against any of the big name shops?
I have other cars for big cams and peak performance. The LS6 cam almosf free. Again your basing internet numbers against verified numbers a very bad way to compare heads. Your not also counting that LE1 heads were flowed farther and still picked up see what that looks like on a graph as well and I wonder why TEA doesn't have flow numbers past .600. AI has numbers to .700 but its on their own bench and not the one he flowed his heads on. What if his bench is calibrated and ended up reading 8 cfm lower? LE1 heads would look a whole lot better now wouldn't they. What if the port volume was closer to 226cc? If you compared that port with this one bench variance could easily account for the difference. TEA I believe doesn't use a superflow bench, which isn't a bad thing it's just harder to compare numbers. What if other characteristics of a cylinder head made more power than just raw flow? How would you then compare these heads?
Last edited by Always2Slow; Sep 8, 2014 at 02:12 PM.
My head work was quite a bit less than $1000 and included new .660" Lunati spring kit. For the application the work I had done will make great power. The other companies I spoke with wanted way more money. That would be fine if I didn't already have my own castings and valves. In my particular situation it was a no brainer.
Again your basing internet numbers against verified numbers a very bad way to compare heads.
Your not also counting that LE1 heads were flowed farther and still picked up see what that looks like on a graph as well and I wonder why TEA doesn't have flow numbers past .600. AI has numbers to .700
Look I'm not bashing LE or saying other heads are better, someone simply asked for a comparison and what I gave is about as accurate as you can do. Unless some has ran the LE heads and others in the same exact engine setup, there's not much else to do an apples to apples comparison.
Last edited by redtan; Sep 8, 2014 at 04:56 PM.
Both of you make valid points. I simply posted a quick thread with somewhat comparable numbers do to the fact I had a stock and cheap port job compared at the same time under the same condition. For a build like this with a stock LS6 cam, LS6 intake, etc. I feel like this was definitely the way to go with the heads. Folks will need to look at each build for what it is. All of theses companies make different stage heads for different money.