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I was surfing the web shopping for parts for my next build when I ran across this. I've never built anything over 500hp so I'll keep my comments to myself.

http://www.youtube.com/watch?v=J0xWrp5bX4c

http://www.racingjunk.com/category/92/Dr...er-900-HP-.html

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I hae seen several 426 and 440 wedge blocks crack and break the main webs at a lot less power than 900 HP I have a 527 C.I. wedge motor(stock 440 block) that makes 800+ HP at 6500 RPM normally apsereated, two 1050 Holley domintor carbs I bought and had ductile iron main caps and ARP main studs installed because I was worried about breaking the main webs I started buying parts for that motor back in 1996 or so, long bfore good blocks where availble Shame on me I'll probally remove the rotating assembly and install a pump gas freindly smaller stroker asembly in that block to make it safe I have sense bought a World block and I will put those 800 +HP parts in it If you want a motor that will make 800+ HP and live a long, productive life, buy a good block to start with