Chevy truck motors forged???? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-28-2007, 11:26 AM
Registered User
 
Join Date: May 2007
Location: camarillo, ca
Posts: 32
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy truck motors forged????

I heard that chevy truck motors from 2000 and older came with forged crank and rods is that true???? or did just certain aplications come with forged parts???
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-28-2007, 11:43 AM
35WINDOW's Avatar
Member
 

Last journal entry: Dash Mock-up
Last photo:
Join Date: Dec 2004
Location: utah
Age: 58
Posts: 1,365
Wiki Edits: 0

Thanks: 7
Thanked 17 Times in 16 Posts
Which Engine are you asking about?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-28-2007, 02:01 PM
Registered User
 
Join Date: May 2007
Location: camarillo, ca
Posts: 32
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 35WINDOW
Which Engine are you asking about?

well the info that i got said truck motors specifically small blocks
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-28-2007, 02:11 PM
Registered User
 
Last photo:
Join Date: Apr 2007
Location: Seattle, Wa
Posts: 6,437
Wiki Edits: 0

Thanks: 3
Thanked 331 Times in 288 Posts
Quote:
Originally Posted by 76 elco
I heard that chevy truck motors from 2000 and older came with forged crank and rods is that true???? or did just certain aplications come with forged parts???
A definite "maybe", you can't tell for sure till you open them up. General rule is that half tons might or might not have forged cranks and 4 bolt blocks. Three quarter tons usually, but not always do. One tons and up always do.

Bogie
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-28-2007, 02:33 PM
Mustangsaly's Avatar
Member
 
Last photo:
Join Date: Jan 2005
Location: Nebraska
Posts: 1,071
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I know some 1970 to 1980 C50 C60 chevy trucks with factory 350s had steel cranks. some school buses in them years had 350 steel crank motors. prob these yr and size trucks with big blocks could of had factory steel cranks too. I heard the 69 to 72 or 74 C10 chevy pickups had factory 4 bolt main 350s with steel cranks. but I have had several in them yrs and not on had a steeel crank. I haven't heard that about newer than late 70s trucks having steel cranks but they could of. back in the 80s we looked for the 70s to early 80s chevy P/Us and buses for builder SBC 4 bolt main motors. and them years for BBC builder motors too........

I like the GM steel Cranks in SBCs & BBCs, and I know GM made 350 1 piece rear main steel cranks, I heard there were in the high performace motors and in one ton and bigger trucks. and GM made BBC 1 piece rear main steel cranks too, but not sure what they put them in.

http://www.gmpartsdirect.com/perform...CATID=883.html

look here too
http://www.mortec.com/cranks.htm


Mustangsaly
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 06-28-2007, 09:02 PM
Hippie's Avatar
Analog man in a digital world.
 

Last journal entry: HEI comparison.
Last photo:
Join Date: May 2003
Posts: 2,255
Wiki Edits: 0

Thanks: 3
Thanked 5 Times in 5 Posts
Quote:
Originally Posted by Mustangsaly
I like the GM steel Cranks in SBCs & BBCs, and I know GM made 350 1 piece rear main steel cranks, I heard there were in the high performace motors and in one ton and bigger trucks.

I have a 350 out of a '96 1 ton, I bought it on that same assumption, got it home and opened it up and .............. 2 bolt mains and a cast crank . But hey, it was in good shape and a roller cam block and I didn't pay all that much so .
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 06-28-2007, 09:21 PM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I have two in the shop, 350 4 bolt mains, 2 piece seal steel cranks with
X rods. One came out of a 1970 one ton, the other was a heavy duty
replacement crate engine for a dump truck. These make great race
engines if you can find one
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 06-28-2007, 09:41 PM
Member
 
Last photo:
Join Date: Jan 2005
Location:
Posts: 3,707
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Automotive Breath, how much stronger are those x stamped rods than the olther stock rods? I have a few sets laying around and wondered if they are much better. Believe it or not there was x rods in a 262 I tore down. I've also seen them in 305 motors. Every 1/2 and 3/4 ton truck engine I've torn down had a cast crank-all of them.

76 elco, all chevy sb and bb rods were forged.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 06-28-2007, 09:59 PM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The X rods apper to have a thicker beam, that's all I know for sure. I read that
they are the strongest production SB rods made. When I use a pressed pin
piston I use the X rod and run them to 7500 RPM with out worry.

From what I read the PM rods aren't as strong as the older forged rods. I have
used them, I just keep the RPM down.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 06-29-2007, 12:20 PM
Registered User
 
Last wiki edit: How to title a hot rod Last photo:
Join Date: Feb 2007
Location: West Virginia
Age: 24
Posts: 3,389
Wiki Edits: 8

Thanks: 14
Thanked 1 Time in 1 Post
does anyoune have aphoto showing a cast and a forged crank side by side
Shane
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 06-29-2007, 12:27 PM
Registered User
 
Last photo:
Join Date: Apr 2007
Location: Seattle, Wa
Posts: 6,437
Wiki Edits: 0

Thanks: 3
Thanked 331 Times in 288 Posts
Quote:
Originally Posted by Chevrolet4x4s
does anyoune have aphoto showing a cast and a forged crank side by side
Shane
I don't but there's a couple instant give-aways when looking at the real thing. Probably the most apparent is the parting line. A casting has a narrow, well defined line where the mold haves join. A forging has a wide, smudged line where the dies crash together.

The surface is often different; a casting has a smooth lightly grained surface; a forging is often grainy, twisted and rough by comparison.

Bogie
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 06-29-2007, 01:04 PM
302 Z28's Avatar  
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,810
Wiki Edits: 0

Thanks: 1
Thanked 81 Times in 68 Posts
You can also tell them by standing them on their flange and tapping them with a metal object. The forged crank will have a sharp ring, the cast crank will have a dull thud. The flange on a cast crank is also bigger when compared to the flange of a forged crank.

Vince
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 06-29-2007, 01:23 PM
11echo's Avatar
Old Guys Rule!...EVERYTHING!
 
Last photo:
Join Date: Jun 2003
Location: Bakersfield, CA
Age: 63
Posts: 467
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Here is a pic. of a forged steel crank. If you'll look at the seam line it will be "thick" about 1/2" wide or so. A cast crank has a real narrow seam line NOT wider then 3/16" or so. I tried to show a dimension line in this pic. to know where to look and approx. how thick/wide it is (think I got it a bit too wide) bit this should give you some idea where and how wide to look for. Good Luck!

Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 06-29-2007, 01:44 PM
Mustangsaly's Avatar
Member
 
Last photo:
Join Date: Jan 2005
Location: Nebraska
Posts: 1,071
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I have two 350cid GM 3.48" stroke 1 piece rear main forged crank shafts #14088532 I'm not sure what they are out of. I just bought the cranks. I have over the yrs had several 350 GM 1182 crank shafts. here in the future for a couple upcoming projects I want to use a 96 or newer 350 4bolt main Vortec roller block, with a forged GM crank I have, and forged I beams or some H beam rods and forged pistons, with a roller cam and be set for some nitrous. I won't have much in the block, crank or rods. so it will be a cheaper build price wize I hope.........



SBC ONE PIECE REAR MAIN OIL SEAL
14088532...350.......forged..medium journal...3.48" stroke


SBC TWO PIECE REAR MAIN OIL SEALS
3941182....350.......forged..medium journal...3.48" stroke
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 06-29-2007, 06:37 PM
Mustangsaly's Avatar
Member
 
Last photo:
Join Date: Jan 2005
Location: Nebraska
Posts: 1,071
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 11echo
Here is a pic. of a forged steel crank. If you'll look at the seam line it will be "thick" about 1/2" wide or so. A cast crank has a real narrow seam line NOT wider then 3/16" or so. I tried to show a dimension line in this pic. to know where to look and approx. how thick/wide it is (think I got it a bit too wide) bit this should give you some idea where and how wide to look for. Good Luck!


what is the crank in the pic ? GM Big Block Crank ? Aftermarket Big Block Crank ? GM Small Block Crank ? Aftermarket Small Block Crank ? one or two piece rear seal ?
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine swap Chevy 350 ina a Datsun 521 truck evh5150 Hotrodding Basics 17 09-12-2007 10:58 AM
Car 235ci into '53 Chevy Truck New2theart Engine 8 10-17-2006 12:37 AM
56 chevy truck frame swap kid Suspension - Brakes - Steering 3 08-06-2006 05:45 PM
1951 Chevy Truck chevblazk5 Suspension - Brakes - Steering 3 01-26-2006 08:27 PM
1967 Chevy Truck Gear Ratio 53chev Transmission - Rearend 3 01-27-2005 07:49 PM


All times are GMT -6. The time now is 02:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.