On startup of my car there is a very squeaky noisy knock coming from the rear of the motor!! Sounds like a very deep internal noise but it goes away faster than you can get out and open the hood 2 inspect....And oil psi is in the 40lb mark ...........???? any help ?????

maybe oil pump>?
maybe Blown motor>?
i just dont know...

 

Torque conv. bolts where loose as a goose
And all the leaks were fixed / gauges are mounted /everything is freaking perfect tks 2 my Bro who spent the day fixing up my car after he drove it 2 work Im so happy my car is just fine after all the work ive put into this $350 beast im never gonna sell her!!!!!!! Besides i think its going to surprise alot of my friends that think it will be a 16.sec car....