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12-12-2008, 07:50 PM
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#1 |
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Roadtrip!
 
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,712
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400 sb
Just stumbled across a 400 small block 4 bolt main. Just a block. Guy wants $100 for it. Is it worth getting? I prefer the big blocks myself, but i know these aren't very common either. Any advice or opinions? Thanks, Eric
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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12-12-2008, 07:56 PM
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#2 |
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Registered User
Join Date: Aug 2008
Location: Red Deer ab canada
Posts: 1,250
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Re: 400 sb
ABSOLUTLY!! 4-bolt blocks were only made for a couple years.
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12-12-2008, 07:56 PM
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#3 |
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Registered User
Join Date: Mar 2008
Location: elk river,mn
Posts: 509
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Re: 400 sb
Eric, yes i would ,its worth 100 all day .they are getting harder to find imho
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12-12-2008, 08:21 PM
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#4 |
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Senior Member
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
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Re: 400 sb
Check it out VERY carefully....lots of cracked block 400's out there. I had a buddy who bought one once....not good.
If the block is good it's a bloody steal! 400's are excellent small blocks!
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Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps. Last edited by Gray Ghost; 12-12-2008 at 08:28 PM. |
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12-12-2008, 09:41 PM
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#5 |
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Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: 400 sb
You need to have it checked for cracks around the mains because the 4 bolt cap bolts are in a very thin area of the block and are known to crack but if not the price is great.
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Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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12-12-2008, 10:16 PM
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#6 |
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Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: 400 sb
 great choice!!!!
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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12-13-2008, 12:17 AM
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#7 |
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Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: 400 sb
Two bolt blocks are stronger than the 4 bolt blocks when it comes to a small block 400. Have it checked for cracks very carefully before dumping any money into it.
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--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
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12-13-2008, 12:18 AM
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#8 |
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Roadtrip!
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,712
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Re: 400 sb
Thanks for the opinions. I guess i will have to check it out better when i get a chance. He has a few other engines there too. I will update this when i can...
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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12-13-2008, 10:28 AM
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#9 |
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Registered User
Join Date: Jan 2008
Location: St.Petersburg,Fl
Posts: 1,267
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Re: 400 sb
Also check the bore, you don't want it if it's already .030 and needs to bore again.
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12-13-2008, 11:39 AM
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#10 |
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Senior Member
Join Date: Aug 2006
Location: Minnesota
Posts: 943
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Re: 400 sb
I would look it over really close also. The lifter valley cracks on them as well. Otherwise you have a $100 boat anchor. The "4 Bolt" term is highly over rated IMO.
Last edited by Ram-Man; 12-13-2008 at 11:40 AM. |
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