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Discussion Starter #1
where can i buy a 347ci bare block from?i no you all are probably thinking what a stupid question but its just most sites give a 302 and then they say what its bored to. i dont know the bore...
 

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30 thousandths bore over is a 347.....any 302 block can be a 347

some blocks you can order already bored if thats what you askin
 

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Discussion Starter #3
yes i would like to order it already bored to a 347...and i dont no where....
 

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well a 302 bored 30 thousandths is a 306......its the stroker kit that makes up most of the cubes......are u wanting to buy a stock block or a racing block
 

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Remember in addition the block needs clearanced for the rods. You can purchase a short block 347 from several different suppliers including DSS and CHP and just add your top end and accessories
 

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talk to woody, hear he's great to deal with
 

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Discussion Starter #7
well i dont qwite know what tipe of block i would need.im building it to be a all motor,high compression engine.i already found the stroker kit that will run it at 10.7:1. and as far as the upper part of the engine im gunna get every thing brand new...
 

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How much of the work are you planning on doing yourself and what type of numbers are you're looking for? If you shooting for 400hp or less na a stock bore factory block from Summit combined with a 3.4" stroked crank / rod / 4.00 piston combo will give you 342 ci. and should serve the purpose. The whole 347 thing kind of started with people taking their existing block, boring it out and putting a stroker together. Remember stroker "kits" are a fairly recent developement. 10 years ago you had to have your own crank custom made, fit up a mismatch of chevy, ford and mopar parts and make your own stroker. Today you can start with a virgin standard bore (4.00) block, standard bore 4.00 (different compression height) pistons and when the time comes to freshen things up, you just buy over size bore pistons, have a clean up bore done to the block, fresh bearings and your good to go. If you start out with a .030 overbore on your block to get the mystical 347 , when its time for a rebuild, you have to get a new block (because the maximum recomended bore on a stock block is .030). That's why my current engine is a 327 and not a 331
 

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Discussion Starter #9
thanx for all your help man i really apriciate it...
 

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