 PLEASE READ; Problem
Ok'ay Just rebuilt my engine for the 2nd time in the past year. The first rebuild went great, bored .030 over pretty much all new internals GOOD STUFF right.
A month and about 3000 miles go by before I start getting on the throttle. Then Driving home from school one day I racing on the express-way and when I got off the express-way i hear a knock. Thinking somthing new was just a manufacture defect I replaced lifters, pushrods, and installed adjustable rocker arms; still knocking.
So I break down the block and find the #4 piston scrached all to hell, and some roughness of the cylinder wall. Everything else internally/externally is perferct. I rebuild the engine have the cylinder wall honed out and install a new piston in the #4 position.
Runs perferct for about 400 miles i change the oil and on my way to work one night I notice a small knock. It worsens, this was two days ago I went and talked to the mechanic that I usually go to, me and him agreed that it is the same knock, same problem as before.
!!!I NEED SUGGESTIONS ON WHAT THIS COULD BE; GIVE ME SOME FEEDBACK PLEASE!!!
__________________ 1987 Mustang 5.0 HO
302 Bored 30 over, BBK Long Tubes, 3.55 Gears, Fuel pressure regulator, 5 speed T5, A/C Elimator Kit / Smog Pump elimated, 155lph fuel pump, BBK Fender well mount Intake, 70mm Throttle body, Speed Density. | 
