Mallett Z

Ok, i've had my car for almost a year now and im still not sure what I have. Long story short I bought it from the original owners wife after he passed away and she knows nothing about the car. The mallett invoices have little detail on specs. they just say x package with a price. I think i have figured out what the cam specs are from fax papers between the owner and chuck mallett. As i was removing the old supercharger and installing my new A&A kit this week i noticed some more numbers on the head that I have not seen before. is what I have found so far. The numbers on the front are C1404. also on the exhaust side of the head there is 225 CNC machined onto the face. My question here is, are these heads something that would fit on a stock LS6 bottom end? because from what i understand from Trick FLows website there are the GenX 225 heads that state a minimum bore of 4.000" Im just trying to figure out more details of the bottom end any way possible without taking it apart! In the last pic you can see the engraved 225 below the 7200 casting number

Steve@C56

Hi,
Your 225 are TFS-LS1-1X
It's fully CNC with 64cc combustion chamber... and was for LS1/LS6 bore

robert miller

These heads are made for motors in the CI OF 400 PLUS. They are a nice set of heads for sure. Robert

Mallett Z

I just wish I knew what the bottom end in this thing was without pulling it apart..