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Old 10-04-2011, 08:28 PM
AL427SBF AL427SBF is offline
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Default Performance Motor Break-In Procedure?

Just curious on what the recommended break-in procedure is these days for a street performance motor, 10.3:1 aluminum 427 DART small block in my case. Manufacturer's 1st recommended oil change is @ 500 miles, sure no problem. This motor has been run in on the stand, but hasn't seen any load yet. As soon as I get the car road worthy, I'm going to put in Joe Gibbs BR and rack up some miles. I talked to the guys at Joe Gibbs and they said you want to give that motor a good workout and put it under a load to make sure you get your valves/rings seated properly. So far so good, consistent with advice I followed with a BMW sportbike making 170 HP, I hammered that machine up to redline multiple times in different gears after the 1st oil change @ 500 miles. That bike doesn't burn a drop of oil, I literally go 3000 miles between oil changes and I don't add any or see any oil consumption whatsoever. So, how do I translate putting the cobra through its' paces as Joe Gibbs recommends? Certainly climb some hills with it, but how hard do I push it and after how many miles right out of the gate?
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