400SBC ??? STROKER KITS

Old 02-19-2011, 06:18 AM
  #11  
fast75vega
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Originally Posted by MEMRACING62
NOTICE TO ALL BUILDERS...A STROKER KIT IS NOT...A JAR OF VASELINE & A PENTHOUSE ! :shock:
damn.... well there goes that thought
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Old 02-19-2011, 08:39 AM
  #12  
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I personally would stay with the 350. The 400 is defiantly tricky and with it being a 2 bolt main I'd put a for sale sign on it and let it go. As far as the 383 I have had one of those too and you have to turn the journals down to far to fit the 350 block plus the block has to be clearenced for your rods also. If you get on it to hard the crank has a tendency to twist I can share sum pics of one I twisted at 2grand rpm's at about 55 mph if you need sum evidence. So my first opinion is the 350, second would be 400.
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Old 02-19-2011, 01:34 PM
  #13  
mopar1968
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Dang you mean you can't just drop a 400 crank into a 350 block and have a ''Old School'' 383 :?: :shock: :shock: That ain't what i heard :!: :!:


Mark
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Old 02-19-2011, 01:44 PM
  #14  
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Originally Posted by mopar1968
Dang you mean you can't just drop a 400 crank into a 350 block and have a ''Old School'' 383 :?: :shock: :shock: That ain't what i heard :!: :!:


Mark
:shock: LMAO
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Old 02-19-2011, 05:58 PM
  #15  
MEMRACING62
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Originally Posted by mopar1968
Dang you mean you can't just drop a 400 crank into a 350 block and have a ''Old School'' 383 :?: :shock: :shock: That ain't what i heard :!: :!:


Mark
If you drop it from high enough it just might fit...new school stroker. :idea:
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Old 02-19-2011, 06:03 PM
  #16  
dragonmaster093
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383 came abousing 400 came about by old school racers using 400 cranks before aftermarket came out with stroker kits
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Old 02-19-2011, 06:04 PM
  #17  
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SO ALL YALL SMART AZZS READ THE FOLLOWING
If the small-block Chevy is the most predominant powerplant in the musclecar world, the 383 could very well be the most popular displacement. In a world where cubic inches are king, it doesn't make much sense to build a 350ci small-block when you can build a 383 for virtually the same price. In the old days, car crafters pillaged unsuspecting 400ci engines for their cranks and connecting rods. Today, the aftermarket is bulging with ridiculously affordable cast cranks. When you can buy a brand-new, fully machined, and ready-to-install cast 3.75-inch stroker crank for $175, there's no reason to build a plain vanilla 350. This giant section is devoted exclusively to the design, creation, building, and testing of the 383ci stroker small-block Chevy.


The essential component of... read full captionThe essential component of the stroker swap is the crank. Adding an additional 0.270 inch of stroke means that the crank and rod swing also increase, making the crankcase a very tight place on a small-block Chevy.The Origin Of The Species
First of all, Chevy never built a production 383. Secondly, the 383 did not just fall out of the sky one bright, clear summer afternoon. Sometime roughly 30-odd years ago, a creative small-block engine builder realized that if he machined the main journals of a 400ci small-block crank to fit in a 350 block, the longer arm would add roughly 28 ci to a 0.030-overbored small-block Chevy. This happens because the 400 small-block uses a 3.75-inch stroke compared with the 350's 3.48-inch stroke. Add in a 0.030-inch overbore and the displacement formula spits out 382.6 ci, which car crafters have conveniently rounded off to 383.

While the standard 383 is the most common form of stroker small-block, there are several variations to this theme. The first question might be: Why not just build a 400ci small-block and take advantage of the additional cubic inches? In the early days of the 383, many enthusiasts were under the mistaken impression that the 400 small-block was prone to overheating, so using a 350 block was considered a better way to go. Today, finding a 400ci standard-bore production block is becoming increasingly difficult, which is why the 383 has remained popular. The following is a selection of the variations on the stroker small-block concept.
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Old 02-19-2011, 06:13 PM
  #18  
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Sam if you mill a 400 crank down that far it will break under the stress, This is a proven fact :!: I think i know where you got your info but a milled 400 crank in a 350 block just can't stand the stress, You have alot of racers on here that i would think they have tried it,They have some high dollar machines i would think they do know what they are talking about :!: Like i have said before ''God gave us two ear's and one mouth for a reason'' :!: :!:

Mark
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Old 02-19-2011, 06:15 PM
  #19  
dragonmaster093
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i knew about 400 crank 383s before this article
http://www.carcraft.com/techarticles...evy/index.html
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Old 02-19-2011, 07:21 PM
  #20  
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I knew there was reason I dont read car craft. :roll: :roll: we dont want to see lively's engine go BOOM!
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