Difference between revisions of "Engine Specs - S65/S85 Rod Bolts"

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= Which rod bolts are best? =
 
= Which rod bolts are best? =
 
A lot of people ask which connecting rod bolts are best, and which they  
 
A lot of people ask which connecting rod bolts are best, and which they  
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buy new ones.  Aftermarket bolts cost significantly more (3x, 4x) than  
 
buy new ones.  Aftermarket bolts cost significantly more (3x, 4x) than  
 
factory bolts, but they take less time to install and can be reused.
 
factory bolts, but they take less time to install and can be reused.
 
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While there is no doubt aftermarket rod bolts will be higher quality and  
 
While there is no doubt aftermarket rod bolts will be higher quality and  
 
stronger than factory bolts, they also have some side-effects that most people  
 
stronger than factory bolts, they also have some side-effects that most people  
 
don't realize.
 
don't realize.
 
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=== Clamping strength ===
 
=== Clamping strength ===
 
The ability to keep the rod bore perfectly round will depend on the clamping  
 
The ability to keep the rod bore perfectly round will depend on the clamping  

Revision as of 03:23, 5 December 2015

Which rod bolts are best?

A lot of people ask which connecting rod bolts are best, and which they should use.  There is no simple answer.  Factory bolts cost less but take longer to install.  Once you use them, you need to throw them away and buy new ones.  Aftermarket bolts cost significantly more (3x, 4x) than factory bolts, but they take less time to install and can be reused.

While there is no doubt aftermarket rod bolts will be higher quality and stronger than factory bolts, they also have some side-effects that most people don't realize.

Clamping strength

The ability to keep the rod bore perfectly round will depend on the clamping strength of the rod bolt itself.

Rod bore distortion

Factory rod bolts

Torque specification

Measurements and rod bore distoration

ARP-2000 rod bolts

Torque specification

Measurements and rod bore distoration

ARP-625 rod bolts

Torque specification

Measurements and rod bore distoration