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11-18-2006, 09:55 AM
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#1 |
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Senior Member
Join Date: Nov 2006
Location: Yukon Oklahoma
Posts: 2,647
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I'm new here
Hello from Oklahoma, this is the best link on the web. I do have a question though, I have a 1972 that I am rebuilding and for the engine I have a 350 bored 0.40 over out of a 1988 suburban. It has 2 bolt mains, should I have it machined for 4 bolt?? Machined for 383. I am also going to use vortec heads. What cam and intake would get me to about 400 hp??
Ant input would be appreciated. Also relocating the fuel tank, I have a tank from the same suburban. Also going air ride. I want to put in a floor shift for 700r4, and build a custom console. I will be asking a lot of querstion, hope ya'll don't mind. |
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11-18-2006, 09:56 AM
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#2 |
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The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,477
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Re: I'm new here
 From West TN 
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Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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11-18-2006, 10:52 AM
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#3 |
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Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,445
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Re: I'm new here
 from WY,I would not bother having it machined for 4 bolts unless your gonna have some major ponies.
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2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327 |
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11-18-2006, 11:00 AM
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#4 |
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Blank
Join Date: May 2005
Location: Southington, CT
Posts: 221
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Re: I'm new here
Hello from CT. My 1968 327 had 350hp from the factory and I now have 418 at the crank with the factory 2 bolt main no problem.
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 1969 lwb 4/6 drop 17x8-18x10 torque thrust II's 327-420hp 2004R 3.73 posi. 1977 Corvette 350-375hp 4speed, silver show car. 2002 S10 xtreme, work truck 2004.5 VW jetta GLI 1.8T 6speed, weekend warrior. 2013 Audi A3 TDI, the wife's car |
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11-18-2006, 11:15 AM
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#5 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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Re: I'm new here
Welcome to the board, 2 bolts ought to do you unless you're building crazy hp.
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal.  We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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11-18-2006, 11:49 AM
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#6 |
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sufficiently talented fool
 
Join Date: Jun 2006
Location: Forest Hill, MD
Posts: 2,231
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Re: I'm new here
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"it's impossible to be surrounded by idiots when you are part of the circle"  2003 Suburban 2002 Pontiac Montana 1981 Corvette 1966 Impala Convertible Click here to support the board |
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11-18-2006, 01:06 PM
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#7 |
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Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: I'm new here
If I recall the 4 bolt mains are nice when you start reving the heck out of it, like around 6000 to 8000rpms. They usually came in factory hi performance and heavy duty applications. Now days it seems all the crate engines are 4 bolt design. Welcome from Texas!
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11-18-2006, 01:38 PM
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#8 |
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Registered User
Join Date: Apr 2006
Location: MinneSNOWta
Posts: 1,381
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Re: I'm new here
If the motor is apart, and you plan on adding a supercharger later, then i would say yes, have the main cap splayed, otherwise i agree with everyone else.
since your motor is .040 over, a standard 383 crank and a decent cam should get you to 400 easy. plus they are fairly easy to come by at a decent price.
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2003 GMC Sierra 1500 WT 1995 Nissan Hardbody 2016 Hyundai Veloster Turbo DC2 (SW/AW) Clyde W. Harvey USN "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery" Winston Churchill |
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11-18-2006, 01:55 PM
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#9 |
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Freeeeee Mason...
Join Date: Sep 2006
Location: McAlester, Oklahoma
Posts: 320
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Re: I'm new here
Welcome from McAlester Oklahoma. I plan on converting my 350 to a 383 in the next few years.
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11-18-2006, 02:42 PM
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#10 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: I'm new here
We live for questions.We'll give our opinions anyway but if asked then we are vindicated for expressing them.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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11-18-2006, 05:59 PM
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#11 |
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Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: I'm new here
Welcome to the board from NW Ia. Ive got a buddy that races a 56 chevy & it SCREAMS. Its running 2X4 carbs 6:50 gears, 6500 converter with a small block & 2 bolt mains. My dad always said "Its just two more bolts to remember to torque" What Im saying is its not that big of a deal & if it really bothers you that you cant say you have 4 bolt mains, just lie & say you do. It will be our little secret...
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11-18-2006, 06:23 PM
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#12 |
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The Older Generation
  
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,465
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Re: I'm new here
With corn....That's what I do. I just put wider valve covers on my 350 and tell everybody it's a 454....  Welcome from the corn state..... LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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11-18-2006, 07:48 PM
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#13 |
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Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: I'm new here
Welcome from Northeast Tenn. Just one thing save you some money down the road. What ever cam you decide to get. Get a good one like a Comp cam and lifters. I have replaced a many that wipe very easily.I won't mention there names. Mostlly due to bad lifters. I have had a comp cam in 3 rebuilds and it is going in my 4th. No wear showing. Oh by the it is a Comp 280H. Summit part # cca-k12-212-2. I bought the whole kit so everthing worked out really nice for me.
My motor Dynoed at 435 hp at 5500. 350 4bolt .030 overbore. and a good set of heads that I worked over majorly. NJow this is my personal experience. Maybe others have there own opinions of comp cams. |
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11-18-2006, 07:53 PM
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#14 |
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Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: I'm new here
Oh forgot, My motor now has been machined for the 383 stroker, and I have estimated it to have 485 hp. (Desktop Dyno) and forgot what the torque is suppost to be. With the same cam.
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11-19-2006, 02:07 AM
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#15 |
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Senior Member
Join Date: Dec 2003
Location: Colorado
Posts: 351
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Re: I'm new here
Welcome from Colorado.
My brother and I were having this conversation about a week ago. He told me that some racers are seeking two bolt mains because the engine block will have a little more flex with the frame, trans, and everything in general. No more cracked blocks even with high HP. Makes me wonder if I'm just gullible.
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The Fastor Pastor '68 swb, 447 BBC/ 6-71 Weiand, Dual 950 Bigs Carbs/ 2 1/2" Header tubes - 4" collectors/ M-21 4speed: '70 swb; TH-400 - bagged & shaved. Looking for new engine or parts. Wife - Original {A Real Classic!} 
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11-19-2006, 02:12 AM
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#16 |
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Registered User
Join Date: Apr 2006
Location: oklahoma
Posts: 10,670
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Re: I'm new here
Welcome to the board from oklahoma to.
Aaron |
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11-19-2006, 03:23 PM
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#17 | |
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Freeeeee Mason...
Join Date: Sep 2006
Location: McAlester, Oklahoma
Posts: 320
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Re: I'm new here
Quote:
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11-19-2006, 03:43 PM
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#18 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: I'm new here
Something I've been told is that a 2 bolt is more desirable even for high HP applications.The opinion was that having a 2 bolt machined for splayed 4 bolt mains gave more strength than a factory 4 bolt.The webbing in the mains isn't compromised by the extra bolt holes.Since I have never had enough $$$$ to build a 700 HP engine I gueass I will have to go on the popular wisdom.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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11-19-2006, 03:49 PM
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#19 |
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Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Re: I'm new here
bob, Here is the link to "The Goodwrench Quest" which was a Chevy High Performance build of a 350 crate engine to 408 hp using bolt-on parts like Vortec heads, Comp Cam, Edelbrock manifold and Holley carb. Very easy and straight forward modifications. Enjoy...and welcome to the board from Seattle, WA.
http://www.chevyasylum.com/chp/Welcome.html
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) Last edited by stllookn; 11-19-2006 at 03:49 PM. |
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11-19-2006, 04:15 PM
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#20 |
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Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
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Re: I'm new here
Welcome to the board from NC,.... I have no good input, but hi anyway!!
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-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was |
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11-20-2006, 11:26 PM
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#21 | |
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Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: I'm new here
Quote:
Try adjusting valves while the motors running. My comp lifters will shot oil on the garage wall if not careful. try adjusting a summit cam and lifters, and they Barely dripp the oil out. So possible a summit cam but leave there lifters alone. There cheap for a reason Last edited by BarryB; 11-20-2006 at 11:27 PM. |
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11-21-2006, 01:24 AM
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#22 |
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Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: I'm new here
Cant really blame the cam. Almost all lifters now are made overseas. That & oil isnt what it used to be anymore, which makes braking a cam & lifters in not what it used to be either. There are a couple good online lifter articles & I can try to find them if you want them...
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11-25-2006, 02:32 AM
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#23 |
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Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: I'm new here
Yeah cornfed63, my thoughts exactlly. Nothing is the same since everything well seems like everything is made overseas or Mexico. but to answer the question go with a name that is well established.
Last edited by BarryB; 11-25-2006 at 02:33 AM. |
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11-25-2006, 02:54 AM
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#24 |
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Registered User
Join Date: Oct 2006
Location: Cheney, KS
Posts: 669
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Re: I'm new here
I sold my buddy my old 383 powered S-10 when I got my 70 SWB. And we just put in one of them new Lunati Voodoo cams the other day. HOLY ****, that woke the little truck up.
It came with new Melling lifters....and yes BarryB, I threw them in the street and reused the same Rhoads lifters Ive been running in that engine since the first rebuild. |
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11-25-2006, 09:49 AM
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#25 |
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Happy to be here
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: I'm new here
Welcome to the forum-bobthecop
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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