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Mon 10 of Aug, 2020 [21:45 UTC]
->Hot Heads Tech Talk
I'm hoping to get some advice on some heads I have a chance to buy. I'm not an expert and trying to buy good parts at good price for a long term build.
Over the last few years I have bought 2 51-53 extended bell housing 331s. Both disassembled. Both motors have a set of early heads with rockers. I have one set of exhaust manifolds. One motor came with a ceramic coated Weiand 2x4 intake with carter carbs (no tstat in manifold). One motor came with a 1954 4bbl factory intake manifold (tstat in manifold).
I expect I will bore the block out. I'd like to go up to the 354 bore size, assuming one of my blocks is solid enough.
From what I've read the early heads don't flow well. I'm guessing that both the 1954 4bbl and the Weiand 2x4 would outflow the heads.
I've found someone selling several sets of heads, rockers, and exhaust manifolds.
He has a single 1955 head (casting #1556157-1).
He has what he claims is a matching 1954-55 set (casting #1632158-1 & 1832159-1- I'm wondering if this is actually 1632159-1). These numbers don't match what I've found on line. Are these actually 54/55 heads? One google search came up with 54/55 Dodge truck heads. Are they better than my 51-53 heads? Do I need matching rockers & exhaust manifolds or will my 331 rockers & exhaust work?
He also has what appears to be 3x 1956 354 heads (castings 1619823-1). Would these be a good head for my motor?
The prices seem fair but they are a long drive away (4 hours each way). I don't know what to look for and really don't want to drive that far if it's not what I want.