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Re: 470 build [Re: Wedgeman] #2547537 09/08/18 11:41 AM 09/08/18 11:41 AM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM super stock
RAMM super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Originally Posted By Wedgeman Using the 6.700 rods with a 3.9 stroke....do I need to notch the cylinder for rod clearance ? Maybe maybe not--How would we know? We don't know what kind of rods you have in front of you. Mock it up and check--its called ENGINE BUILDING. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: 470 build [Re: AndyF] #2547543 09/08/18 11:53 AM 09/08/18 11:53 AM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM super stock
RAMM super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Originally Posted By AndyF Search for 470 and you'll find dozens of threads on this board. The 470 is one of my all time fave big block builds and I love big blocks for various reasons. Unless OP has a machine shop at his disposal, I would call 440 Source and just order one of their 470 kits, have my block machined with the "full meal deal" and stick any of the larger solid lifter variety cams in it. Depending on the "fully ported" Eddy heads power will be healthy and torque will be almost 100 ft/lbs greater than a 408. Single biggest gripe I have is the down right horrible valve position. When you "fix" that expect major power improvements. Oh and now I am deathly afraid of rear main leaks although the last few have been bone dry. J.Rob Last edited by RAMM; 09/08/18 11:54 AM. 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: 470 build [Re: Wedgeman] #2547688 09/08/18 08:47 PM 09/08/18 08:47 PM
Joined: Oct 2007 Posts: 4,206 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,206 New York	I beam less likely to nick the wall than H beam. Rod side clearance is safe at any figure you're going to get (over .014" or so, my preference), except: does this allow the piston pin boss to strike the rod eye? Not likely, but check each one separately. If the boss width is more than .060" smaller than the eye width and the boss is symmetrical you're probably safe. Boffin Emeritus

Re: 470 build [Re: Wedgeman] #2547696 09/08/18 09:11 PM 09/08/18 09:11 PM
Joined: Aug 2006 Posts: 2,141 junction city oregon V viperblue72 top fuel
viperblue72 top fuel V Joined: Aug 2006 Posts: 2,141 junction city oregon	Originally Posted By Wedgeman Using the 6.700 rods with a 3.9 stroke....do I need to notch the cylinder for rod clearance ? I didn’t even need to notch the bores with a 4.25 stroke so I don’t see how you would have any clearance issues. I did have to take off just a bit at the oil pickup boss, which was only a few seconds with a grinder.

Re: 470 build [Re: RAMM] #2547716 09/08/18 10:08 PM 09/08/18 10:08 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Originally Posted By RAMM Originally Posted By AndyF Search for 470 and you'll find dozens of threads on this board. The 470 is one of my all time fave big block builds and I love big blocks for various reasons. Unless OP has a machine shop at his disposal, I would call 440 Source and just order one of their 470 kits, have my block machined with the "full meal deal" and stick any of the larger solid lifter variety cams in it. Depending on the "fully ported" Eddy heads power will be healthy and torque will be almost 100 ft/lbs greater than a 408. Single biggest gripe I have is the down right horrible valve position. When you "fix" that expect major power improvements. Oh and now I am deathly afraid of rear main leaks although the last few have been bone dry. J.Rob What do you mean by ''the down right horrible valve position'' ? Please explain.... I may repeat myself, but I never hear of details like, single pattern camshaft is good or better or you need more duration on exhaust or lobes that are different...Eddy heads need more duration that Indy's and so on...I have so much a hard time choosing parts for me and so easy build for others......may be because I know there is so much to learn here.... The more I learn, the more I know I don't know much... Where are you located ? Dan

Re: 470 build [Re: Wedgeman] #2547732 09/08/18 10:50 PM 09/08/18 10:50 PM
Joined: Jan 2003 Posts: 31,021 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,021 Oregon	Most of that stuff is just noise that you should tune out if you're building a street/strip type of engine. Just focus on building something that is reliable with high quality off the shelf parts and leave the tricks for other guys. A 470 with Edelbrock heads and an off the shelf cam should be capable of making 600 hp on the dyno. You don't need a big cam to do that either, the old school Mopar .528 flat tappet will make good power in a 470. If more street than strip then use a Performer RPM. If more strip that street then use a Trick Flow intake. A 750 carb will work just fine on a 470 but you can go larger or smaller if you want.

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