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#1 |
Registered User
Join Date: Mar 2001
Location: Gilbert Az
Posts: 286
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What type of block
Is there any way to find out if I have 2 or 4 bolt main, wihtout taking the oil pan off?
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1970 k10 1971 C10 Gilbert Az |
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#2 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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usually the only sure fire dead on way is to pull the pan and look
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#3 |
Registered User
Join Date: Apr 2003
Location: Deville, Louisiana
Posts: 293
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get the block # and go to http://www.mortec.com/castnum.htm
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1972 GMC SWB, 305 powered 1980 diesel VW pickup, Needs a Heart Transplant 1997 Toyota Taco The Second Amendment is in place incase they ignore the others. |
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#4 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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but even still some casting numbers could be either 2 or 4 bolt the only sure fire way is to pull the pan. if the engine is running good or in a truck it doesnt matter much anyways a 2 bolt is plenty strong for about any street bound motor. and in some cases the 2 bolt is stronger than the 4 bolt
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#5 |
Junior Member
Join Date: Feb 2003
Location: Louisiana
Posts: 281
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I think if the last 4 numbers are 0010, it`s a four bolt.
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71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com |
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#6 |
.........................
Join Date: Nov 2001
Location: benton, ky
Posts: 288
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My spare 350 is 0010 and its a 2 bolt, but you can get a 2 bolt Splayed at the machine shop and its supposedly stronger than a 4 bolt.
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1971 LWB Chevy C-10 350/350 3:42 eaton ![]() |
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#7 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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3970010 is a very common block, and can be 2 or 4 bolt.....the 1 in my Longhorn is a 2 bolt block(also 10/20 high nickel). i also have 2 spare blocks with the same casting # , & they are also 2 bolt blocks. the best way to know for sure, is pull the pan ,as cableguy suggested
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#8 |
Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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Ive owned 4 0010 blocks...all were 2 bolts
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
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#9 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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i will let you guys know how much a bolt will handle when i get the brodix track 1's and switch to a roller cam setup
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#10 |
Junior Member
Join Date: Feb 2003
Location: Louisiana
Posts: 281
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Guess I got lucky, my 0010 is a 4 bolt. I was told that 0010`s were all 4 bolts, wan`t sure that`s why I said "I think".
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71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com |
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#11 |
Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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yea..I think im just unlucky with the 0010 blocks..I heard over half have 4 bolts
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
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#12 |
Junior Member
Join Date: Feb 2003
Location: Louisiana
Posts: 281
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I guess cableguy is right, the only sure way to tell is remove the oil pan.
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71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com |
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#13 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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yea jim i have had 3 010 block that are 2 bolt and in the machine shop i work in have seen who knows how many that are also 2 bolt so im thinking its less than half that are 4 bolts
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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