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Thread: 496 race build
          
   
   

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  1. #1
    Dirtracer5 is offline CHR Member Visit my Photo Gallery
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    Apr 2015
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    Glen Allen
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    8

    496 race build

     



    Hey everyone haven't posted on here in a while but our 355 race motor build went awesome and thank you to everyone who answer our dumb questions. Anyway recently I've decidied to take up mud bog racing. Bought a chassis with no motor and last week picked up a 454 block that is at the machine shop getting magnafluxed. The class I'm planning on running requires you to have a stock block so dart blocks are out of the question and must be naturally aspirated so no N20 or blowers. I have been planning on building a 496 stroker motor but still have the option to go bigger cubic inch. Don't know a terrible amount about big blocks all new to me so I was wondering if I could get some info on parts to use and what not. Pretty much all I know is small blocks but I'm ready to build some big block power! Lol thanks yall

  2. #2
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
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    machine and built many 496 for what your doing and much bigger and your not going to get much bigger in CID with a stock 9.800 deck i have done some 513 with a 454 block .but its not a job for many that never done it . the shelf pistons they sell for a 4.310 bore and 4.375 crank in mahle do not work good with a used block after you true the decks the piston will be out of the deck so the CH on the pin is wrong .Auto Tec has or did have a piston that was built for me that would be much the same price as a shelf piston other then that it is a wisco piston .with a K1 rod of 6.405 they are the only ones that make that is under $800. that common rod for 496 /510 build is the 6.385 rod thats 250 longer then the stock rod 6.135 then its custom built piston and the added time work going to a 510/513 in the short 9.800 deck 454 is not worth it the way i see it. but the 10.200 427 tall deck if the right year will take a 4.500 crank so it not hard to be at 525/540CID built some and wiseco make a small bore piston with a 1.120 CH so you can use a 4.750 crank in the tall deck bbc that will get you 571 at max bore of 4.375 so its not hard to build a 560 cid engine with a stock 427 tall deck
    Last edited by pat mccarthy; 10-27-2015 at 03:42 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

  3. #3
    Dirtracer5 is offline CHR Member Visit my Photo Gallery
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    Well 496 it is lol. What would be a good set of heads to go with? Also would like to know what cam to choose. Competition products sells a 496 strokes kit that's 13:1 compression w/118cc head. Would it hurt to go higher in compression. Not concerned about having to run race fuel

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