Wallet Clearance

Anyone have experience with a stroker GM two bolt 400 sbc block...?

...for racing. I got two of em, one bored sixty over with no core shift, align bored with steel splayed main caps. I was gonna use the stock crank(10/10 & steel!) with H beam PF steel rods & KB hyperutectic pistons for a 412 ci package. I'm thinking now of a stroker in the range of 427+ ci. Problems seem to center on the small base camshaft & rod bolt clearance which can be accomadated, barely! My question is the durability of the 400 block bored to this tolerance. When a higher compresion like 13:1+ Mahle pistons is considered, FF H beam rods NOS & 8000 RPM my concern is block fatigue. Even if I fill the lower part of the water jackets with block filler a combo like this may well tweak the block & my wallet. I got a hot deal on it as the block was free as well the machine work. Problem is a GM rocket block or after market block will be consideribly stronger, & cam & block clearance problems are gone, plus even bigger ci combos. Cost shoots to the moon also!!! Comments welcomed!

i would be scared to dump a lot of $$$ into a 421/427/454 and try using a stock block. i know that it sucks to drop 2k on a block but in reality its cheap insurance when you have a $1500 rotating assembly. i built a low rpm (6k) 406 to keep it all on the safe side...i dont want to check the connecting rods from the OUTSIDE!!!
also on a stock block start with a 2 bolt and add splayed caps for durability. i wouldnt want a 4 bolt 400 (stock) personally.
sidenote my 406 had rodbolt/cam issues one 1 lobe (5.7" rods). 10 minutes and a dremel tool and it was done. at 4" stroke i would definately order a small base circle....

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clearance Special - Jessica Simpson JS2232 Lucca Hobo - White

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$189

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$129

This beutiful Prada M170A Saffiano Leather Wallet is a Sleek and elegant Prada signature trifold wallet Made out of Black Saffiano Leather. Includes seven credit card slots one coin pocket with snap closure one large billfold compartment and