Cylinder Head Flow Numbers

CobraMarty

NAXJA Forum User
can't post correctly, sorry.
 
Not these mate.
 
The 2 standouts look like

stock valve 1.91"/1.50" -- Dr. Js Performance ported iron

Big valve 2.02"/1.60" -- Clearwater Cylinder heads ported iron (only questionable reputation)

HESCO looks like decent intake and fair exhaust flows.
 
Installing 505 Performance Race Head today. Can't wait to see how it works.
Description--Brand new heavy casting fully ported cylinder head 2.00 intake and 1.570 exhaust valves, Chrome moly spring retainer keepers, Raised exhaust runners and profiled intake runners flowing over 300 at .500 lift on intake side and 180 plus exhaust.
 
Installing 505 Performance Race Head today. Can't wait to see how it works.
Description--Brand new heavy casting fully ported cylinder head 2.00 intake and 1.570 exhaust valves, Chrome moly spring retainer keepers, Raised exhaust runners and profiled intake runners flowing over 300 at .500 lift on intake side and 180 plus exhaust.


Cool. Looking forward to reading the results. Which stage is the head you bought?
 
Stage 3.
 
You mean this "505 Performance race ported big valve head"?
505head1.jpg


505head2.jpg


505head3.jpg


Looks like they gave a monkey a die grinder. I wouldn't doubt if it flows worse than stock.

Interestingly you deleted most of those images from photobucket.
 
Thanks, I guess we will just have to see how it does.
 
Yeah but it does flow 300cfm intake and 180cfm exhaust at .500".
 
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