It was brought to my attention by Zippy that most stroker guys experience an oil consumption problem. How much oil do you consume per X amount of miles?

Im exepriencing currently 2qts/180miles are so which I know is bad but am wondering what you guys with strokers that are working right are getting.

 

I have a Gen I stroker engine and I don't burn any...good ol' first gens. I've heard 1 qt/2000 miles with any engine is about normal.

 

I hear SLP 402's burn about 1 qrt/800 miles and I didn't think that was acceptable. In my opinion, I wudn't want an engine that burns any, but I guess it depends on ur application. U shud do some serious trouble shooting tho with what uv got. I am just beginning my build and if the motor burns any oil they're gonna be tearing it down to fix it. R/

 

yes the SLP's do burn oil. Dunno about the qtrs/mile but a buddy has a red camaro with the 402 SLP stroker and it SMOKES like a frieght train and compression is still good. Rings are fine. Just smokes.

 

Well it was like Zippy was telling me pretty much everyone with a stroker experiences some oil burning it has to do with the long stroke and not being able to get the rings to seal as well. Im not a motor guru by far but it sounds like that could be a problem and many people have strong running strokers that burn oil apparently.

 

Could they be using low tension oil rings? I'm with you guys 1 quart per 800 miles sucks. Imagine how that crap is gunking up the engine. I wonder if it's a PCV issue or what? How else could you possibly be using that much oil...all you would ever have to do is change the oil filter...the oil would be self-changing, how handy(not).

Dave

 

The main reason that the ring seal issue comes about on a stroker is the location of the rings. When you make the rod longer and add stroke, you end up pushing the piston rings up high on the piston. The closer the rings are together, the less effective they are. Another problem with making the stroke longer and adding a longer rod is that the piston skirt is much shorter. A short skirt piston commonly doesn't go up and down perfectly centered. It allows the piston to rock slightly as the piston is pushed up and pulled down. This exact same thing showed up when GM decided that the classic 454 wasn't good enough for the heavy duty trucks and they built the 496. The 496 uses the same bore as the 454, but they brought the stroke from 4.00" to 4.37" and added in a longer rod. Right from the release of the 496 there has been oil consumption issue's and yet the 454 was pretty much a solid running engine that had to be worked even harder than the 496 due to it's lower hp and torque rating, yet didn't have oil consumption issue's.

 

I have never had any problems out of my 408, but my rings may be moved down a little more.

 

Mine uses less than a qt in 3000miles,usually about 1/2qt low when I change it.

 

I don't have any oil burn on my Gen1. Problem I'm still fighting is when over about 6lbs boost, oil is forced out of the engine through the front seal. Trying another new seal and some pressure relief holes in the webbing and front to timing gear and valley area.