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383 questions????

Old Oct 27, 2003 | 01:56 AM
  #1  
MiscCamaro's Avatar
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383 questions????

first of I'm not fimiliar with the 383...but i was wondering what is involved with a 350 plain block to get it setup for a 383 kit???? so if you think i might already know something....go ahead and tell me anyways!!!...any other comments about a 383 setup is very much apprieciated....thanks guys
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Old Oct 27, 2003 | 05:38 AM
  #2  
Nozzghoull's Avatar
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From: Las Vegas
Car: 86 TA
Engine: 383 Stroker
Transmission: 700R4
check these out

Here's some good info that helped me before I bought mine.
http://www.hotrod.com/howto/69883/ how to stroke any engine article.
http://www.caspeed.com/488hp383.html a guy doing his own stroker build
http://www.speedomotive.com/ this is where I bought mine.
http://members.cardomain.com/nozzghoull my car

Usually they use a 350 4bolt main. bored 30over, longer rods, aftermarket crank and if ya get crazy with it you'll need oversized pistions too.

An article I found: Originally, this mod was invented by using the crankshaft from a Chevy 400 cid engine, but since those were out of style years ago already, it was a bit of a pain and so nowadays a new, custom aftermarket "stroker" crankshaft design can be had for an affordable price. Indeed, such a new steel crankshaft is the centerpiece of my 383. With the new dimensions, the 350 gains some extra cubic-inch displacement (cid), plus the small gain from boring the cylinders out 0.030" over (a standard procedure, almost always done when rebuilding a car engine, whether modifying it or just rebuilding it to stock specs). when the engine's combustion chambers fire and push the pistons down, the connecting rods (which connect the piston to the rod, changing linear, reciprocal motion into rotational force) have more leverage. As a result, the *torque* of the engine is substantially increased - and increased torque is especially beneficial.
Hope this helped.
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Old Oct 27, 2003 | 10:44 AM
  #3  
spartyon's Avatar
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From: winthrop harbor, il & plymouth, il
Car: 1986 camaro
Engine: 383 sbc
Transmission: th-400
Axle/Gears: 4th Gen 10 bolt/Detroit TrueTrac 4.
Re: check these out

Originally posted by Nozzghoull
Usually they use a 350 4bolt main. bored 30over, longer rods, aftermarket crank and if ya get crazy with it you'll need oversized pistions too.
if you bore it out you will need oversized pistons anyway. basically a 383 is a 350 bored.030 with a sbc 400 crank.
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Old Oct 27, 2003 | 12:58 PM
  #4  
88Camaro350's Avatar
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From: B'ville, WV
Car: 2002 Formula Firebird
Engine: LS1
Transmission: 4l60e
Axle/Gears: 3.23
Isn't there some machine work that much be done to the crankshaft or block itself? Or maybe some machining on the block for the 6'' rods?

Ive heard there is new stroker 350 cranks out that don't require machining but I don't know.
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Old Oct 27, 2003 | 01:40 PM
  #5  
MiscCamaro's Avatar
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thanks nozz, but does a 4-bolt main have to be used??? i heard they were stronger...but i'm not sure...and do you know some prices on getting stuff machined??? my buddy 88camaro350 already asked, but i mean like some heads ported, block bored and machined-cleaned??? i don't have any idea how much that stuff is...but prolly a pretty penny!!!thanks
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