Cobra block question

Mustangscotty · 08-05-2010, 09:28 PM

Thanks for chiming fella's.. MUCH APPRECIATED !

I found out several things about the engine in my Cobra this week. First, the head gasket on the drivers side was blocking coolant flow in cylinders 5 and 7. That caused those two cylinders to run hotter and piston 7 started to separate. There is a technical term for it but I forget.

Second, the engine builder ordered clevite bearings for the bottom end and discovered the engine wasn't a Romeo block (Cobra block). I assume all 03/ 04 Cobra motors are Romeo blocks?
Apparently the end bearings in a GT block have some sort of tab that tells the engine builder the block is a non-Cobra engine?? I'm clueless on this one and have concerns the the engine is not an actual Terminator block.

How can I tell if the block is a GT block or an actual Terminator block? Part numbers?

08-05-2010, 09:28 PM	#5
Mustangscotty Senior Member Join Date: Dec 2007 Posts: 699	Thanks for chiming fella's.. MUCH APPRECIATED ! I found out several things about the engine in my Cobra this week. First, the head gasket on the drivers side was blocking coolant flow in cylinders 5 and 7. That caused those two cylinders to run hotter and piston 7 started to separate. There is a technical term for it but I forget. Second, the engine builder ordered clevite bearings for the bottom end and discovered the engine wasn't a Romeo block (Cobra block). I assume all 03/ 04 Cobra motors are Romeo blocks? Apparently the end bearings in a GT block have some sort of tab that tells the engine builder the block is a non-Cobra engine?? I'm clueless on this one and have concerns the the engine is not an actual Terminator block. How can I tell if the block is a GT block or an actual Terminator block? Part numbers? __________________ Scotty 67 Mustang fastback 68 Mustang coupe 03 Cobra 13 F150 4x4 69 Harley FLH 67 Camaro Last edited by Mustangscotty; 08-05-2010 at 09:30 PM.