TrackAttack wrote:1. I can assure you his/her answer will be don't use them as he/she probably won't (shouldn't) want to bore an engine to suit a damaged piston.
I also expect this to be the case but no harm in checking.
2. The problem with used pistons/rods is you just don't know enough about them. Knock causes damage to piston pin bushes, and these bushes can cost more to replace than the rod is worth... You might come out saving a few hundred on a build that costs a few thousand. Better off spending the extra few hundred IMO
2. Agreed. Pin bushes are included when purchasing individual pistons. Worst case I'll get a complete set. (May actually work out cheaper once pins, rings and shipping is factored in)
3. Have the rod bolts been torqued previously correctly? Over tensioning these bolts will cause them to stretch, and if reused, fail. Do you have the 'free length' measurement of these bolts? When a new set of bolts is used, you will record the 'free length' and record each bolts location in the engine.
This will be checked prior to purchasing/machining occurs.
4. What's a new set of piston rings going to cost for these pistons? What bore size are these? They might even be standard bore size which might not work if your engine is a bit on the loose side... So many questions
4. Rings are approx $100 US. Bore size is 78.5mm. (Stock is 78mm)
I have 2 blocks and 3 heads to play with.
Nothing is definite but fingers crossed.
Some great points there. Thank you.
1. I also expect this to be the case but no harm in checking.
2. Agreed. Pin bushes are included when purchasing individual pistons. Worst case I'll get a complete set. (May actually work out cheaper once pins, rings and shipping is factored in)
3. This will be checked prior to purchasing/machining occurs.
4. Rings are approx $100 US. Bore size is 78.5mm. (Stock is 78mm)
I have 2 blocks and 3 heads to play with.
Nothing is definite but fingers crossed.
Part no. For these pistons is 6554m785.
Thanks again for your insight
