though i currently have 452 heads, (retro?) i have had eddy heads, 440 or small block, the same differences are true, with a set of closed chamber steel heads 2.19 valves, compression ratio 11.63, the engine had to have 110 fuel, period.(those heads had about 1800 dollars into them)a hot engine cracked one beyond repair. switched to stock eddy's (88cc), the car ran a couple tenth's quicker and ran fine on pump gas. the aluminum heads are hard to beat for cost and efficiency, my next step in heads is going to be indy which will without question outflow steel. tom 65 satellite --- "Westerlund, Ken" <kwesterlund@xxxxxxxxxx> wrote: > I assume they outflow stock Eddys not ported Eddys? > Thanks, > Ken > > -----Original Message----- > From: Joeydahook9@xxxxxxx > [mailto:Joeydahook9@xxxxxxx] > Sent: Thursday, May 26, 2005 9:25 PM > To: 1962to1965mopars@xxxxxxxxxx > Subject: Re: X vrs J > > > Mopar Action said this month that ported X/J heads > will outflow eddys > and > mopar aluminum heads, but would cost more. > Interesting...... Joe > > Your free subscription is supported by today's > sponsor: > ------------------------------------------------------------------- > Get a Free Sirius Satellite Package, don't pass on > this! > caadwPhbOgXg2f/ProductTestPanel > ------------------------------------------------------------------- > > ---- > Please address private mail -- mail of interest to > only one person -- directly to that person. I.e., > send parts/car transactions and negotiations as well > as other personal messages only to the intended > recipient, not to the Clubhouse public address. This > practice will protect your privacy, reduce the total > volume of mail and fine tune the content signal to > Mopar topic. Thanks! > > '62 to '65 Mopar Clubhouse Discussion Guidelines: > http://www.1962to1965mopar.ornocar.org/mletiq.html. > > > > __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new Resources site http://smallbusiness.yahoo.com/resources/