Zzeal Posted November 7, 2014 Share Posted November 7, 2014 (edited) Mercury Racing Teases 4-Valve LS Cylinder Heads at SEMA 2014Read more: http://www.hotrod.com/events/mercury-racing-teases-4-valve-ls-cylinder-heads-at-sema-2014/#ixzz3IOUGYqMS Follow us: @HotRodMagazine on Twitter | HotRodMag on Facebook http://www.hotrod.com/events/mercury-racing-teases-4-valve-ls-cylinder-heads-at-sema-2014/#.VFw3eomcl9c.facebook Edited November 7, 2014 by RB26powered74zcar vague title Quote Link to comment Share on other sites More sharing options...
Jay Gadsby Posted November 7, 2014 Share Posted November 7, 2014 Looking forward to seeing what those things can do. Mercury Racing is using that technology on its 1350 and 1650s. Those are the horsepower ratings at the prop of course those are huge block Chevy engines lol. I have a Mercury Racing 500 Efi in my boat and love love love the reliability of their products. Anxious to see more on these! Quote Link to comment Share on other sites More sharing options...
socorob Posted November 7, 2014 Share Posted November 7, 2014 I think I would go with a coyote motor if going the DOHC route, just because of guaranteed parts availability in the future. 1 Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted November 7, 2014 Share Posted November 7, 2014 You want to double your cam and valvetrain costs, why? Quote Link to comment Share on other sites More sharing options...
socorob Posted November 8, 2014 Share Posted November 8, 2014 quadruple cams double valvetrain Quote Link to comment Share on other sites More sharing options...
260DET Posted November 8, 2014 Share Posted November 8, 2014 (edited) Cool, but the main attraction of the LS for me is it's simplicity and low weight. I deliberately went away from multi valvers to get those advantages, also because the C of G of a pushrod V8 is lower. Another point concerns the power that a LS bottom end can handle which I thought was already a power output limiting factor. Edited November 8, 2014 by 260DET Quote Link to comment Share on other sites More sharing options...
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