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Old 08-12-2011, 04:52 PM
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396 sbc stroker...

i seen a art. on this unknow 396 sbc and i said heck yea, the thoughts of getting a 3.875 instead of the 3.75 crank is awsome, knowing there are plp out there still tryn to find the limits on the good ole 350's, plp always looking for the 400 blocks to make 406's or 408's and they are hard to find, so whats yals take on the 396 sbc??

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Old 08-12-2011, 05:50 PM
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My take is that a 406 will be cheaper, take less work and make as much power.
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Old 08-12-2011, 07:32 PM
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the 396 stroker kit uses small journal 327 rods then offset grinds a 400 crank to get a little more stroke (+0.070 more). Then uses a 4.060 bore.

A friend of mine had a 391 which is built the same way, just a little less bore (4.030"). ran well.

I have a 362, which is a 3.55 stroke (3.48 + 0.070") and 4.030 bore. A stroked 350 crank with the small journal 327 rods. Makes a 368 with a 4.060" bore.
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Old 08-15-2011, 07:17 AM
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396 sbc uses a scat 3,875"stroke crank and 4,030" 350 block,there were a article in the CHP magazine a while back,i have it in my table,will have to see what issue it was
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Old 08-17-2011, 08:32 AM
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Speed-o-motive offers their 391 kit(if you trust their stuff), its an offset ground stroker crank. The 391-396 engine should only be a few hundred bucks more than a 383 stroker setup.

peace
Hog
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Old 08-17-2011, 08:37 AM
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Quote:
Originally Posted by gofastz
i seen a art. on this unknow 396 sbc and i said heck yea, the thoughts of getting a 3.875 instead of the 3.75 crank is awsome, knowing there are plp out there still tryn to find the limits on the good ole 350's, plp always looking for the 400 blocks to make 406's or 408's and they are hard to find, so whats yals take on the 396 sbc??
Build a 400. By the time you jump through the hoops building a 350 into 396, you could have had a bigger V8 (lol) for less coin and hassle, besides the bigger bore of the 400 is a plus the 350 can never have.
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Old 08-17-2011, 09:02 AM
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with the 3.875 crank i think you are going to run into clearencing problems, it can be done but you will have to do more clearancing to the pan rails, rods and possibley the lower cylinder edge
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Old 08-17-2011, 12:34 PM
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http://www.chevyhiperformance.com/te...ock/index.html

Here is the article
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Old 08-17-2011, 07:08 PM
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I have a 414" LT1 motor. Internally it is identical to an sbc roller block. My motor has a 4.00" crank in it. The block IS NOT clearanced any more than it would be for a 383. You have to pay special attention to 3 critical things to get a 3.875"-4.000" crank to fit.

1. I-beam rods clear MUCH better than H-beams
2. Special 12-point small-head rod bolts are a must
3. A smaller base-circle camshaft is typically needed.

My motor has Scat Pro-Comp I-beam rods, ARP rod bolts, and an LSMENG.com custom .900" base circle camshaft. I could have went with a .950" base cam but hindsight is a *****, lol.

People that say a 396 sbc will not be as good as a 406 or cost more have probably never tried to build one. I can find a 396 rotating assembly a lot easier than finding a GM 400 block. A half-filled sbc roller block, with splayed 4-bolt mains would rock when built as a 396.
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