Pt 5 Measuring Rod Bolt Stretch and Rod Bearing Clearance - 5.0 Stroker 4.6 Teksid Engine Block

[@Lethal_Venom]

Awesome thanks.

[@therankinfiles8956]

For what it is worth, it is nice that Manley provides these specifications. ARP is somewhat contradictory in their catalog. In their current catalog, there is a table on page 57 that says 55 ft/lbs. However, when you look on page 57 for bolt set 256-6301, it shows a stretch of .0065 - .0070 @ 45 ft/lbs. I found that neither of these was achievable. 45 got you nowhere near that stretch and even increasing the torque to 70 did not yield the desired stretch and actually ended up binding the #1 assembly. It must be noted that I was re-using a set of ARP2000 from a motor that I did not build. It is completely possible that these bolt had been previously overstretched. I should have listened to my own advice, "When in doubt, throw them out". New set of bearings and bolts inbound. Hopefully, this solves the problem.

[@therankinfiles8956]

Need to add a clarification. The correct aftermarket bolts for the 4V style connecting rods is the 200-6207.

[@AnahiltMG]

Sorry to point out but you have made a fundamental mistake. You zeroed the gauge on one bolt then torqued up both bolts equally until you got the correct stretch on the gauge. But each bolt is a slightly different length from each other and requires individual zeroing. You should have zeroed the gauge on the first bolt then measured the second bolt, writing down the difference + or - then torque up both bolts and set the stretch on the first bolt. Now when setting the stretch on the second bolt you need to add or subtract the difference to what the gauge is showing. My ARP2000 bolts are 0.004” to 0.005” different length from each other so yours could well be the same and that is the not far off the stretch that you are measuring. Simple solution - measure each pair of bolts on each conrod beforehand, zero the gauge to one of them and adjust the other accordingly.

[@davepritchard9291]

Are you checking all bolts as all I've seen is you have only done the one

[@justinw523]

No he just hopes for the best out of the other 7 rods, The man has thousands of dollars worth of rods and equipment there clearly he has shown on that one rod that he knows wtf he’s doing so I’m sure he has measured the other seven rods. Dumb question dude

[@kevinwest3689]

Do you ever wonder why when someone says something ignorant in the comments why they don't come back And delete it. The dude literally says he's going to check the other ones. Reminds me of a Trump supporter.How's everyone gonna know I'm ignorant if I don't have my red 🤪🐓🍭🍭