A friend of mine is interested in trading his b20 block for my b18 block since he is building up a turbo project and I am going all motor, it works out for the both of us (stronger sleeves on the b18). Regardless of your feelings on that issue, read on:
Point is, my '92 B18A1 block has 75,000 miles on it and has been occasionally been seeing 7800-8000rpm (once every 2 weeks) for only 4 months of its life. My friend has the opportunity to get a really REALLY good price on stock bore JE pistons & eagle rods combo and before tearing the motor apart, I am wondering for those experienced, what are the chances of the sleeves in this block being out of round and needing to be bored over? The reason I can’t tear the motor apart is that I can’t do it quick enough until the offer on the pistons/rods are up.
What up Richie?
Its a touchie subject bro. I would say to your buddy to get the piston and rod setup. If your still driving with this motor and everything is cool with your motors vital signs, you should be ok. I would get those pistons without rings. Make your ring selection when the motor is out of the car and in your engine builders hands. If your motor is in good shape then theres no need to line hone the block. Just have them cross hatch the bores slightly so it gives something for the new piston rings to seat too. This is done with a hand drill and specail cross hatching tool. If the block needs to be line bored (which I highly doubt), then get oversized piston rings (but good quality). Theres more then one way to skin a cat. I think that rod combo should be fine.