superirocz

I have been chasing a weird oil leak since i installed this motor a year ago. Oil is runing down the back of the block. You can see what apears to be oil seeping out were the head meets the block deck at the rear of the head/block. Its coming out on both sides of the engine in the back. It seems to be much worse on the pass. side just soaking the starter and running down the pass. side oil pan in the back. Intake is not leaking, sending unit area is all dry. I have my oil feed lines were the oil sending unit goes. Valve covers were leaking but I got them fixed. Rear main seal is dry I have had the clutch out of the car 4 times in the last year. Last night I cleaned up the back of the engine and ran down the road 5 miles under boost came back and the oil is clearly coming from were the head meets the block in the very back of the motor. I can see the Dizzy and sending unit area and it all bone dry. Is there anyway its leaking from the head? Rear intake is dry. WTF I need to get this fixed its leaking all over my downpipes and could catch on fire.

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89 iroc-z 12.7@111mph all motor 350 (old na setup) efi chrome zr-1 etc
now twin T-70 turbos, budget motor, 6-speed broke a shaft on 2nd pass 11.7@129mph
dart little M and a turbo 400 sitting in my garage fab 9" 3.0 gear
http://community.webshots.com/user/mattb153
99 nbm Formula ws6 m6 g5x3 etc

superirocz

Ok I found were the oil is coming from. You can clearly see the oil runing down the back of the block between the tranny and AFR heads on the block. Above the heads is bone dry yes valve covers,intake,dizzy,sending unit area is bone dry. It runs down both sides clear as day from the back of the heads. The AFR heads hang about 1/4 of the back of the block deack. I found two other guys that had the same type of leak but no solutuion with AFR heads.

Going to try to use "the right stuff" the back of the heads were they hang of the back of the block deck surface.

"I have been getting a large leak above my starter and my oil filter . I checked the normal / intake and valve covers. no leak. I noticed i have a bead of oil btween block and head on both sides and only at the rear . every where else is dry . Is this possible where my leak is coming from"