i have an 84.5mm darton sleeve and it got damage. someone is sell me a darton block which had 84mm sleeve so i was wondering if i could use the sleeves out of the damage block in the 84mm block

 

why not just use the 84mm dart sleeved block and bore it out to 84.5mm?

 

yep thats what you should do for sure!!its a dart block cant go wrong

 

What exactly got damaged? If everything is in good shape I'd do this.
Use your 84.5mm pistons and buy new rings for them. Take the 84mm block to a reputable machine shop along with the pistons and rings. Have them bore it out and hone it for 84.5mm and whatever final piston to wall clearance you're going for. Then use all your old parts like crank and rods. Obviously purchase all new bearings and rebuild the short block.

 

for one i can tell you this dart never had a 84mm sleeved block lol. they came in either 81.5mm or 84.5mm. and if and only if he is selling you a dart block that WAS 81.5mm originally i dont think you could bore it out anymore with the sleeves thats in it hence the reason they made an 84.5mm block. im assuming this is a b series correct?

 

its the block that got damage not the sleeve and the block i want to get dont have any sleeve in it, it use to have 84mm sleeve but the guy take them out

 

yes it a b series

 

Wrong the dart block comes in an unfinished deck height of 212mm & 226mm(8.346” & 8.898”).. Bore: 81.5mm (3.209”) = 81.23mm unfinished
Bore: 84.5mm (3.327”) = 83.31mm unfinished!! I have a dart motor and my bore is 84mm so yes you can bore it to 84.5 good luck hope this helps!!

 

you still not understanding what i want to do the block i want to buy the person take out the sleeve which was 84mm so he only have the bare block so i was wondering if the sleeve out of my damage 84.5 block works in the bare block which in the 84mm sleeves.

 

you got to check slevee thickness and roundness and size make sure its gona fit right into the block idk ive never did a swap like that...but good luck man!!

 

ok thanks

 

have anyone on here ever try this or knows someone who had