Have any of you guys, that have stroked a small block, had a lot more wear that requires a rebuild? Say after about 10k miles?

Some of the guys are batting around the idea that wear would be too much to accept if it needs to be rebuilt so soon.

Just trying to do some fact finding.

Thanks

I haven't heard of anyone complaining about worn bores yet on 408/416. Maybe on the 4.125 cranks it might become an issue, even more so on the 4.25 cranks but not many of those running around.

anytime stroke is increased beyond stock ring wear is increased due to more travel. the increased wear can also be a factor of lower gears increasing rpm and i have noticed that the more power the engine makes (loads the rings) and the more often the power is used the shorter the ring life. but, i do think there are ring materials that can help with wear in a performance application.

go to www.mototuneusa.com and scroll down to & click on "breakin secrets" (easy 5 minute read) & see what you think

Thanks, I was hoping that someone that has torn down a higher mileage stroker might chime in. Breaking-in is important, of course, but doesn't a stroker thrust against the outside wall more than a standard stroke motor? Thus wearing out the rings and bore faster?

I asked about ring wear when I should have asked about excessive bore wear. Which will take the rings out too.

Thx

On a BB stroker, I wore the rings and bores very fast first time... caused by a very rich on break-in.

Got the mixture under control, had the short block rebuilt and now have 16k miles, some pretty hard on the road course, and no problems. Oil consumption and blowby all good. That with a very short 1.13" compression height piston.

a low rod angle engine can have increased bore wear as compared to a high rod angle. if the stroke is increased but the rod stays the same length then the angle is lower. at what point things really get noticeable may depend on a lot of factors and how the engine is used. strokers and tatoos seem to be the fad now days and i don't particularly have a use for either. sooner or later the regret factor will raise it's head.

I'm loosely considering one. what might I experience/run into that'll make me regret it? They ain't cheap thats for sure

Nothing from everyone I have talked to that has one. I'm thinking of a 4.125 stroke in a 340.

Until you get beyond 4.31" strokes, there have been OEM engines with that stroke. Look at the 226 Slant 6. It has a mile-long stroke. Do they have excessive ring wear?

A 408 with stock rods has nearly exactly the same rod/stroke of a 454 chevy, and it's better than a 400 chevy engine. So it's not like breaking new ground. Of Course there will be more side loading, but the real question is, is it beyond the lubricating system's ability to cope? Signs point to no.

If the increased side loading is a factor, I would expect to see the common strokers not being able to post hp/cubic inch numbers similar to the shorter stroke engines, and while there is a difference, it isn't huge.

R.