Porting C9VE heads got 224 cfm at .800 lift... good?

Is 224 cfm at .800 lift a good flow number for an iron C9VE production head with a 1.8 valve?

flow is above 200 from 600 lift on

Really????
my second port flowed about 4 cfm less.
Did the exhaust ports with a dremel

so maybe if i copy those ports i can make a strong sleeper motor....

WOW if you get those kind of numbers Maybe Scotty needs to get tips from you on Porting.....


Randy

dfree383 wrote:The real question is where are the mid lift numbers and how turbulant are the ports and where is the flow in a realsitic lift say .650.........

stays over 200 from 600 lift up.

What kind of test pipe are you using?

the Coug wrote:WOW if you get those kind of numbers Maybe Scotty needs to get tips from you on Porting.....


Randy

Im not that good!
This is actually my second set of ported heads. I never flowed my clevelands.

I think the 1.8 valve is what did the flow numbers justice.

Im on the 3rd port now and it has the heat passage in it. would JB weld work well to plug that huge gaping whole back there?

Im at a complete and utter loss on the intakes no idea what im going to do there. Any helpful insight there would be useful.

Im going to try and post pics of the ports when i get home today.

dfree383 wrote:Post the whole Flow Sheet and what / whos bench are you on?

I had a local machine shop send them out to get them flowed i dont remember the name off the top of my head but from what ive heard there bench has been known to be alittle high.

I will try and get that posted as well when i get home tonight.

what would the norm for a full on port job yeld with these heads?

Damn, I need him to port mine, I doubt Dennis gets that much out of mine.

342g wrote:Damn, I need him to port mine, I doubt Dennis gets that much out of mine.

Honestly i dont know how i did that, just shaped the port how i thought would work best. (if i were air screaming through here which turns would i like when....)
I called another local engine builder about 5 min ago i told him what they flowed on a bench and asked if he could check it on his. He volinteered to do it for nothing!
I just wanna make sure its flowing these numbers. I didnt know that 200 was a hard amount of flow to get out of these heads.

well i had the heads reflowed they flowed as follows:
(without test pipe)

.100 54
.200 109
.300 146
.400 170
.500 193
.600 214
.700 217
.800 219

Im hoping if i back cut the valve that it will help out the lower lift numbers but they apparently are pretty good according to the guy that flowed the heads.

I told him that i did it with a dremel and he looked at me like i was insane!

Anyway what do you guys think?