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Old 09-29-2012, 09:23 AM
vpd66 vpd66 is offline
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10 years ago I built a low buck 421. It actually came out to a 419ci. I took a stock 400 crank and had it offset ground and the rod journals turned down to 2" to use stock 283-327 rods. Back then the machine shop had an awesome guy that ran the crank grinder and it just costed the same price to have the crank index ground (around $100.00). I used Sealed Power hypertectic 5.7 400 pistons. After a light cut on the deck the pistons were .010-.012 out of the deck. I milled the pistons for zero deck height. I used a .500 lift cam and didn't run into any clearance issues. It took alot of mock up and a sharp guy operating the crank grinder but it was low buck. I used Dart Sportsmen II heads. That motor was a beast.Tons of torque. That being said, I doubt it was worth doing the extra work to get 13 extra cubic inch. Just my opinion.
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