Finally a great comparison for these fine cyl heads.
This is what prompted me to gather the facts, even if they hurt :)
Originally Posted by CHI OWNER-identity withheld
Hey xrgt didnt u have a set of AFD 4vs on a stroker engine, we'd all love to see the horsepower and torque figures so that we can finally compare and then decide which is the better head I know there are many different factors involved but as noone else has run these heads and theres quite a few different CHI combinations gettin aroun thered at least be one to do a comparison with.
Originally Posted by AFD OWNER-identity withheld
Of course, I'm biased, too...biased to making better power!
'was at an engine dyno session today - not my engine, a 406clv stroker with out of the box AFD 4v's + TFC + custom grind Mech flat tappet + 11.1comp + pump fuel, and it made an astonishing 593HP with a massive flat curve! He was one happy customer.
XD408, a member of this forum, has a 408w stroker with Ported CHI 218's + TFC + Mech Roller + 11.1comp + fuel?, and it made an astonishing 570HP with a massive flat curve!
The CHI engine has ported heads to its advantage, as well as a Solid roller cam.