matching cases?

[jas250r]

I recently bought two new 86 cases and what if anything do i need to look for to make sure they are matching? Going to start assembly this weekend

[jas250r]

I did a search and nothing came up with what i want an answer to. I'am sure that there are other people that are curious too. I can understand alignment of tranny shafts and crank, etc. but if both pieces are for the same year, there should be that much difference? I know that they only had so many casting that they used, so i would think that they would be all interchangeable? hello is thing on?

[matt250r21]

If you have brand new Honda cases that is as matched as you need to be.

[jas250r]

Thanks, i kind of figured that but there always seems to be more to learn from you guys

[beerock]

you might want to order the 89 main bearings so you have one more ball in your main bearings

;)

[jas250r]

do you really think i would gain all that much from changing out these brand new bearings? 89 are 8 balls right? I wish service honda sold the 88' complete! I'am waiting for the fed ex truck any day now for the stock 88 crank and a few other things to start assembly

[beerock]

sounds like your doing it right, its up to you if you want to swap em out or not. i have run the 86 bearings and i have run the 89

if your putting more power on top like a 330 or higher the 89 will probably help in bearing wear, by how much i really dont know, but the balls are fairly large so i would think one would help quite a bit

what kind of top end are you doing?

[matt250r21]

I have heard that the 1988 year crank is the best of all the long rod cranks. Is this true? I thought 87-89 were all the same.

[hollywood250r]

Originally posted by matt250r21
I have heard that the 1988 year crank is the best of all the long rod cranks. Is this true? I thought 87-89 were all the same.

88-89 cranks are the same. The 87 has the same rod length as the 88-89 but the clutch side of the shaft has a slightly different length.

[beerock]

Originally posted by hollywood250r
88-89 cranks are the same. The 87 has the same rod length as the 88-89 but the clutch side of the shaft has a slightly different length.

no 89 is diff im not sure if its price wise or not i think there is a diff in the crank im not positive. but as far as I know the 88 is the best year. i think they changed the crank can cover on 89

[jas250r]

for right now i'am going to rb racing port the stock cylinder out and run that this year.