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#1 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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010 block?
my buddy got a 72 GMC grande from his grandpa.
its got this 010 block he calls it, says that it means its a high nickel content block...making it alot tougher then other 350's is there any truth to this? ![]()
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#2 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: 010 block?
Not really -- makes for good bench racing ammo however.
No effect on performance whatsoever, but The block might be marginally tougher when it comes to core shifting and things like that - which would come into play if you had to rebuild it multiple times, ----- but most people are much more concerned with whether a block is 2 or 4 bolt mains. |
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#3 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: 010 block?
its a 2 bolt main...i tried to tell him that it was all the really mattered aha...
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#4 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: 010 block?
They wear a little better having the higher nickel content, but streetstar is right, its no real big difference. The pre '76 blocks are a better than the later light casted block in terms of cracking, but if you are building a mild, street driven engine, there's no bad 350's.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 010 block?
if it is a 10 20 block, then it is in fact a high nickle, and is in fact tough as nails.
The caddy big blocks are high nickle, and I've opened uip motors with 100,000 miles, and have little to no ridge at the top of the cylinder... not even enough to catch a fingernail. Even seen 2 100,000 mile cad motors, where you could see a faint reminance of the cross hatch from the honing process. Ppl that work in machine shops will tell you they can HEAR the difference when they bore them out. |
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#6 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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Re: 010 block?
supposedly, an 010 020 block is a high tin/ high nickle content block. i have one here, 2 bolt main, 010 020... pistons are worn completly out, and 5 of them had both compression rings broke. not a single scratch or ridge on the cylinder.
now with that said,i dont think a 3970010 block is neccasirly an 010 block, it has to have 010 020 under the timing cover and above the oil filter
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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#7 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: 010 block?
that is corect tho 010 at the end of the casting number is a sure way to tell you have a 4" bore block, either a 327 or 350 and the 010 and 020 under the timing chain cover designates the extra tin and nickel
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common sense isn't so common anymore |
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#8 |
Registered User
![]() Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: 010 block?
yep 010 & 020 best there is in production blocks
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I BELIEVE IN JOHN 3:16 |
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#9 |
Registered User
Join Date: Oct 2006
Location: Dundee, Oregon
Posts: 311
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Re: 010 block?
So i have a 3970010 4 bolt main block that i have been saving for years, and have never heard of the marking under the timing cover and above the oil filter. But i just went and looked at it and it has the 010 marking under the timing cover but i dont see any of these marking near the oil filter. Found some markings, just not the right numbers. Am i looking in the right spot? Does anybody have any pics?
Thanks Jason |
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#10 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 010 block?
honestly, I've never heard it was supposed to by by the oil filter too.
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#11 |
Senior Member
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
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Re: 010 block?
I have seen several with the oiul filter number but not all have it. They only stamped the 010 or whatever there.
I've had four 010's myself and wouldn't trade them for ANY newer block. Most rebuilders will tell you that those are the best Chevy blocks. That said the performance level is the same, it's just a better quality block.
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Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps. Last edited by Gray Ghost; 11-15-2007 at 06:28 AM. |
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#12 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,253
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Re: 010 block?
Here is a shot of the 350 block I used to make my 383.
It is out of a 1971 Monte Carlo. It has 2-bolt mains. Don't kill yourself if you don't have a 4-bolt main block, for most of our applications it is beyond overkill. I only added the completely assembled 383 picture because I like looking at fresh engines. Ain't she pretty?
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#13 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: 010 block?
Its also on the back of the block. My GMC Serra Grande came with this block also 4 bolt mains. Sorry I don't have the picture of the rear that shows the numbers. Looks just like the front just bigger.
s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() Last edited by Sport/Truck; 11-15-2007 at 08:27 AM. |
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#14 | |
Registered User
![]() Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: 010 block?
Quote:
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#15 |
Registered User
Join Date: Oct 2006
Location: Dundee, Oregon
Posts: 311
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Re: 010 block?
Mine only has the 010 marking. It is on the rear of the block also. So is this block worth building or should i keep loking for a better block?
Jason |
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#16 |
Senior Member
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
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Re: 010 block?
There really is no better 350 block....as long as it is not cracked....build it!
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Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps. |
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#17 |
Registered User
![]() Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: 010 block?
You still got a good block so build it.
I think the only times the high nickel might make any difference is if you were building a high hp engine or if you were gonna bore it .060. |
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#18 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 010 block?
or if you want it to last 100,000 miles with little to no wear.
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#19 |
Registered User
Join Date: Oct 2006
Location: Oakridge Oregon
Posts: 1,865
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Re: 010 020 block?
The 350 in my 68 SWB has a block with "010" "020" numbers behind the timing chain had them as well by the oil filter as stated above.
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#20 |
Registered User
Join Date: Aug 2002
Location: California
Posts: 971
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Re: 010 block?
ok, opening up an old conversation here...
Rebuilding the my 350 and found only "010" under the timing cover but then found "010" and "020" by the oil filter. I think later I'll do a bit more research for curiosity sake... maybe it means I have the block with high tin/nickel/kryptonite content?!
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--------------------------------------------------------- I'm not crazy, I'm chosen, there's a difference. ---------------------------- '72 K10 SWB, 350, sm465/np205 ---- ---- |
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#21 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: 010 block?
I`d like to know.
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#22 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: 010 block?
The tin/nickle has nothing to do with core shift. Core shift ONLY happens at or before casting the block. Its when a "sand core" moves out of position druing or before the steel is poured. Core shift after is a cracked block.
Core shift during boring or any other time is just a wives tale. The core shifted during casting and you just found out when you bored it out. Or busted the block. I worked in a foundry in Bridgeport CT for a few years and never have I seen a core shift after the cast. Seen a lot before and during but never after its cooled and cleaned. Last edited by dwcsr; 05-30-2009 at 12:42 PM. |
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