Moparchat - Home of MOPAR enthusiasts worldwide!



Go Back   Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > Performance Talk

Click here to search for Mopar cars and parts for sale.


Reply
 
Thread Tools Display Modes
  #1  
Old 01-23-2002, 05:09 PM
Olle B Olle B is offline
Inactive User
 
Join Date: Oct 2001
Location: Höllviken Sweden
Age: 69
Posts: 382
Question New Rod Bolts while restoring?

Hi
Ive got different input from friend according to the need of changing rod bolts while restoring an engine!
Its an original 1970 HP 383 sitting in a R/T car
and Ive split it into parts just to check its cond.
The rings have to be changed and so the cam and bearings,The Q is:
Is it common to change the rodbolts also?
Its not gonna be a race engine,just the 335hp+

Olle B
Reply With Quote
  #2  
Old 01-23-2002, 05:35 PM
Tarrbabe Tarrbabe is offline
Inactive User
 
Join Date: Jan 2002
Location: Cumberland Plateau
Posts: 1,972
Question New rod bolts on stock engine

You are only doing a stock rebuild but you most likely don't know how hard it has been run, most RR's got run hard and put up wet. How hot has it been run? Oil and other maintance items? You may very well get by with old rod bolts but it is cheap insurance. Only you can make the choice, but how secure do you want to be? I'd change the bolts if you care about the car and a good nights sleep.

You can have your old bolts inspected at the machine shop, but you can buy new bolts for the cost.
Reply With Quote
  #3  
Old 01-24-2002, 06:28 PM
Jims451 Jims451 is offline
Inactive User
 
Join Date: Mar 2001
Location: Littleton, Colorado
Age: 59
Posts: 924
Default

I alaways replace the rod bolts!
This is possably the weakest part of a Mopar engine, the stock rod bolts. Why risk destroying a perfectly good engine by saving $45 on rod bolts? The only bad(?) part is the rods will need to be inspected and possably re-sized after installing the new rod bolts.
Reply With Quote
  #4  
Old 01-24-2002, 08:54 PM
Lee Pritchard's Avatar
Lee Pritchard Lee Pritchard is offline
Inactive User
 
Join Date: Apr 2001
Location: st petersburg fl
Age: 67
Posts: 369
Cool

Would you build a house with rusty nails???or put new tires on with old valve stems.... spend the 45.00 for the ARP bolts and have the rods resized..... Peace of mind is worth a millon bucks..Lee.....
Reply With Quote
  #5  
Old 01-25-2002, 02:31 AM
Olle B Olle B is offline
Inactive User
 
Join Date: Oct 2001
Location: Höllviken Sweden
Age: 69
Posts: 382
Default

Yes I guess its the best to replace them,but as you mention its not only the cost of the bolts.
Do I have to take the pistons off?
Thats a cost of 100$
What the cost of checking and maybe resize the rods?
And while making all above,why not go for little more expensive bolts............sounds like a 300$affair,but Im sure you are right!
Destroying an matching # R/T engine is not an god idea......thanks for advice,Have to ask my old lady for some extra this month!
Thanks Olle B
Reply With Quote
  #6  
Old 01-25-2002, 04:54 AM
DartGT66 DartGT66 is offline
Inactive User
 
Join Date: Sep 1999
Location: vantaa,finland
Posts: 4,622
Default

No, you don't have to take the pistons off the rods. Just get the ARP bolts and have the big ends resized with them. Have you measured your pistons, that they really are good? Ring / groove clearances etc? On my opinion it's better to spend some extra while you are working at it than to regret later you didn't. Next thing to do would be balancing since the factory balbance is usually way off, but for that you have to remove the pistons.
Reply With Quote
  #7  
Old 01-25-2002, 09:40 AM
cuda66273's Avatar
cuda66273 cuda66273 is offline
Banned
 
Join Date: Dec 2001
Location: Beaverton Oregon
Age: 71
Posts: 3,685
Default Fortune cookie say"....."

Do it right....and do it once.

If you can't afford to do once you sure can't afford to do it twice.

The throttle will aways find the weakest link

See signature line......
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help restoring 1968 RR RODT Restoring your MoPar (Tricks & techniques) 5 03-21-2005 05:14 PM
Restoring a '63 Polara 330 63 Polara Vintage MOPAR chat 4 02-13-2005 10:10 PM
Swapping yucky bolts for SS allen bolts? riquiscott Performance Talk 1 03-01-2004 12:33 PM
restoring 74sport Restoring your MoPar (Tricks & techniques) 6 05-15-2003 01:33 AM
Restoring a 65 Coronet Coronetcruiser Vintage MOPAR chat 3 02-12-2003 10:17 PM




All times are GMT -4. The time now is 07:11 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
. . . . .