Guys- I'm getting a list of parts up to put my .030" over 454 mill back together and I'm looking at head gaskets. I have set of 781 Iron heads, stock 454 Crank & Rods, and my pistons are forged L2349. I have the deck height stack-up written down somewhere but have not been able to locate it yet. The engine had a set of Fel-pro 1017-2 (.051 thick) head gaskets on it and I'm trying to figure out why I may have went with that gasket specifically. It's been 11 years since I picked these parts up from the machine shop and the guy that did the machine work is out of business now. I recall talking about quench, deck height, compression and which gasket I should get with him when I picked it up but for the life of me I cannot recall the details of the conversation so now I'm trying to get back with the program and pick out some head gaskets. I do remember putting clay on the piston top, and assembling the engine to check clearances and had no issues- I also don't think the block has been excessively decked but I am going to measure that as soon as I get a chance. Is the L2349 a 'funky' piston for some reason? I don't even see them being mentioned or listed anymore. Other than a possible clearance issue, why would the guy have recommended me use a thicker gasket? From what I understand now, it is undesirable for quench to use one that thick? The gasket would have very minimal effect on compression wouldn't it?
The 1017-2 apparently was doing it's job- there were no issues with the head seal.
What gasket style & thickness would you guys think I ought to be looking at?