ok got the block from the machine shop today with all work done. installed the crank, assembled the pistons and rods, now i need help with the ring order. there are 2 thick rings, one thicker than the other, the oil ring and then 16 spacer rings, what order do they go on please? they are keith black pistons and a set of mahle rings. any help appreciated. First time building a motor by the way.

 

Did the rings not come with labels/instructions?

 

there are instructions but not clear, nore, do they even mention all of the rings ingluded only the top ring and oil ring.

 

ok i have half of it figured out. the spacer rings installed on either side of the oil ring to lock it in place. now i need to know if anybody knows which one is the top ring and which goes in the middle. one has a chamfered corner and one has a small dimple. i know the dot and the chamfer point towards the top of the pistom but i do not know which order.

 

chamfered corner? Does it look like this?


If so thats the second ring. If not it could be a different type of ring pack. Mahle has different ring styles depending on the kit you use.

A tapered face or beveled edge (side that faces the cylinder wall) should be a second ring as it acts like an oil scraper.
A rounded/barrel face is commonly used as a top ring. The dimple should mean that side up. Just my guess from what i'm reading on mahle's site.

I cant remember off hand, but I believe my JE piston ring kit had a dimple meaning that side faces UP

 

how do u get a 385? never heard of it

 

.040" over piston instead of typical .030" over 383.

The other way is a .060 over 400 with 3.5" crank. A .030" over 400 with 3.562" crank is 386.

 

that is what they look like and ive been informed that that is the top ring, chamfered corner up, the other ring is just rectangular and is the second ring(middle) sorry for taking so long was out of town for the weekend.

to answer the question about the 385 its just a 383 build with .040 pistons instead of .030. the only reason i went this rout is because the machine shop didnt think the cylinders would clean up and +.030 so i went 40 over to be safe.