The motor is going to be ripped down and rebuilt but since it will be apart, put it back in better. Oil pressure is never lower that 40 psi on the guage and it is not DD. Going to spec the block and crank for S & G's and make final decisions from there. It doesnt make any bottom end noise and runs like a raped ape. Just making noise on cold start.
2000 GMC Sierra RCSB with a 5.3 and 4L60E. Let the games begin. Started with Camaro E-fans, Nelson Harness, 160* thermo, PaceSetter LT's, Random Tech Cats Hooker Aerochamers and true dual 3" Dumped at the bumper, 2/4 drop, NP performance tune, Built 4L60 and Alpine audio, TR220 cam, LS6 Ported Oil Pump, LS2 Timing Chain, LS2 Lifter trays, Vigilante 3k stall conv., Built 4L60E, 4.11 gears, Detroit Tru-Trac and all of that adds up to no traction and garbage 60' times. What next......?
http://s466.photobucket.com/albums/rr21/fb9120/
Sounds Like piston slap.
2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s
2004 Buell XB12s
Originally Posted by LamboDoNoMo
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