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Thread: Educate me on Iron Headed LT1
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03-29-2011, 09:06 PM #11
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I have a set of cast iron heads from my first build that are in great shape, I swapped them for a set of aluminums for the weight savings. If you are interested in them let me know.
2013 King of Street & ES/PA Champ
1979 Chevy Monte Carlo 383,Stock Ported Heads, 4L80 with Edge converter, QP 9", Nitrous Outlet Plate Kit
Certified Performance & Auto Repair Inc.
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03-29-2011, 09:17 PM #12
"The Hammer"
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If they are out of police cars, then they are probably LT1's. The best way to check is to either pop the valve cover and look at the head casting numbers or look at the block casting numbers. And there are no differences between Iron LT1 heads, they are all essentially the same.
I've got a set of either casting number Iron heads, and so far I can't find any differences. I haven't had them flowed to see if there are any differences between the two different castings there, but from everything I've found so far, the only difference between the two LT1 Iron castings is the numbers"Only in the Corps can you put three guys in a room with an anvil and a rubber mallet, come back 15 min later, and the anvil is broken, the rubber mallet is missing, and nobody saw a damned thing!"
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