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Old 02-17-2016, 09:04 AM   #5
BigBlocksRule
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Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
Re: Destroking a vortec 454 into a 427 or 440?

L29 head won't care for a dome and you'll need one with a 3.766" stroke.
Rebuild it as a 454 and deck the block, add a towing cam 214/221 on a 114 LSA and pair of headers. Then get it tuned. You'll have a torque pig that'll actually knock down some decent mileage.
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