Re: 4.3 "wake-up" time...questions
Guys.... I completed building my house, and had a kid since my last posting.. BUT I can't get this mod out of my mind! <br /><br />I talked with a Marina mechanic yesterday, and he suggested that the Vortec (automotive) heads that I was about to buy had hardened steel valves, versus my current non-vortec marine (OMC Cobra) heads which have stainless valves (according to him). He said that would create an issue. Not convinced.<br /><br />He did suggest that a Edelbrock #2111 intake (non vortec)+ Edelbrock #1409 carb would run like I want, with no real noticeable difference than a 4-bbl vortec package. (Rated by Edelbrock at 203hp/260 ft-lb)....It's cheaper to do it that way (kinda like what Bondo did), but Bondo is still planning to go Vortec!<br /><br />Anyone concerned about exhaust restrictions with the OMC 1-piece manifolds? OR too much fuel being dumped into the small engine??<br /><br />We also got into the discussion of the gear ratio in the outdrive working against me (especially with the shift prop). Higher RPM's allow for easier shifting. I'm not sure you can really overcome RPM's with pitch....<br /><br /><br />BTW - I have an extra L&S Torque-Shift prop for early OMC/OMC Cobra (15 spline I think) that's for sale. I have numerous CAMS that we can interchange.....<br /><br />Thanks again!<br />Erin
