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#1
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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 |
#2
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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. |
#3
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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 $45 on rod bolts? The only bad(?) part is the rods will need to be inspected and possably re-sized after installing the new rod bolts. |
#4
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Would you build a house with rusty nails???or put new tires on with old valve stems.... spend the 45.00 for the ARP bolts and have the rods resized..... Peace of mind is worth a millon bucks..Lee.....
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#5
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Yes I guess its the best to replace them,but as you mention its not only the cost of the bolts.
Do I have to take the pistons off? Thats a cost of 100$ 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 |
#6
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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.
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#7
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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...... |
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