Rod bolts?

[ihaterice]

I am haiving my engine rebuilt back to stock 2g. Should i go arp rod bolts an will this make the rods alot stronger than stock?

 

[DSMcamaro]

It all depends on your goals and how much HP you plan on putting down. What are you all doing in this rebuild?

 

[ihaterice]

Well i spun a bearing. If you read my thread "Redline?" thats on the 1st page of the newbie forum you will see. My goals are not to spin a bearing. i am goin to the machine shop so i need to know.

Its goin back to stock. Hp willl be from 3 inch exhaust 15 psi k and n bored 1 mil over 5 angle grind job. Thats it there will be 0 modding in the future the car is fast enough. I just want to be safe to take the car over 5500 rpm without spinning a bearing.

 

[DSMcamaro]

If you can afford it and it will make you sleep better at night, go for it. Otherwise if you doing everything else back to stock, I'd say you'd be fine with the stock bolts.

 

[ihaterice]

I went ahead and had them do that it was only 100 bux extra. So will these bolts help with spinning a bearing? Are they ganna not stretch like the stock ones did cuasing me to spin a bearing?

 

[99gst_racer]

Well i spun a bearing. If you read my thread "Redline?" thats on the 1st page of the newbie forum you will see. My goals are not to spin a bearing. i am goin to the machine shop so i need to know.

Its goin back to stock. Hp willl be from 3 inch exhaust 15 psi k and n bored 1 mil over 5 angle grind job. Thats it there will be 0 modding in the future the car is fast enough. I just want to be safe to take the car over 5500 rpm without spinning a bearing.

Stock rod bolts will be just fine on a stock performing engine.

More importantly, make sure your machine work is done properly. You rods will probably have to be resized and the crank polished.

 

[99gst_racer]

So will these bolts help with spinning a bearing?

Not necessarily. Proper machine work is the key to engine longevity. If you cheap out on machine work, or if it's done improperly, ARP fasteners will not save your engine.

Are they ganna not stretch like the stock ones did cuasing me to spin a bearing?

Rod bolts are supposed to stretch. The material's ability to rebound like a spring, is what provides the clamping force. So to obtain the correct amount of clamping force, a fastener should actually be stretched a measured amount.

1. Reinstall the rod cap and bolts, then measure the free standing length using a mic.

2. Lube the nuts, and torque them to the recommended bolt stretch.

3. With proper preload applied, have rods resized. This is recommended anytime the rod bolts are replaced. (Be sure the torque spec used when resizing a rod and final engine assembly are the same.)

4. Install the rod/piston assembly in the engine using the bolt stretch method (same bolt stretch as before).