just had motor rebuilt 383 hi perf how many miles till i rap on it

[geneo4116]

so what do you think 383 ported and polished heads 906,comp high energy cam, eddy rpm and carb,tti headers, keith black pistons 9.5 to1, mopar elec dist, have drove apprx 200 miles easy, do you think its time are should i get 500 miles and change oil first,

[Moparal]

Take the oil filter off, cut it open and inspect. No bad particles? Change oil and go mash the pedal

[js27]

IT depends on how the motor was built. Cylinder wall finish--ring type and gaps--rod and main bearing clearances.. I know when I raced  we would set up piston to wall clearance loose with tighter ring gaps and a nice 2 to 2 1/2 thousands rod and main clearance. I would start up the fresh motor break in the cam and take it for a couple of half throttle passes  bring it back retorque everything change the oil and drop the hammer and go racing. I never had a motor fail.
JS27

[Moparal]

IT depends on how the motor was built. Cylinder wall finish--ring type and gaps--rod and main bearing clearances.. I know when I raced the we would set up piston to wall clearance loose with tighter ring gaps and a nice 2 to 2 1/2 thousands rod and main clearance. I would start up the fresh motor break in the cam and take it for a couple of half throttle passes  bring it back retorque everything change the oil and drop the hammer and go racing. I never had a motor fail.
JS27

   This is the way I do my same race engines almost to the tee. But with you saying 200 miles on it already see my first post