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Forum: Hot Heads Tech Talk

Forums->Hot Heads Tech Talk->heads

gunnibronco
heads


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.

Thanks.


  user offline
on: Thu 28 of Nov, 2019 [05:26 UTC] reads: 159

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Re: heads
on: Thu 05 of Dec, 2019 [22:36 UTC] score: 0.00
gunnibronco: 1556157 = '55 car
1632159 = truck
1619823 = '56 car

The other numbers are not list and hard to read many times. This information came from the "Hemi Engine Data book" We sell for $14.95.
If you go to swap meets you need this in your back pocket.
Hope this helps, Bob







> 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.
>
> Thanks.
>
>

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gunnibronco
user offline
Re: heads
on: Thu 28 of Nov, 2019 [18:50 UTC] score: 0.00
I've got more info from the seller, and have read enough to know what options I have.

He has a set of 55-56 (not 54) heads w/casting code 1632159-1. I've found these are 55-56 331 Industrial heads.

He has a set of 56 354 heads casting 1819823-1.

So my question: Is the work & money worth it to use the 55+ 331 or 354 heads worth it, or should I stick with the 51-53 "low flow" heads I have? I'll have to add a water cross over w/t-stat housing/water neck.

I'm putting this motor into a 39 Plymouth coupe. It will be a 'hot rod' street driver. Just looking for fun and reliable. Should I keep it simple or will switching to newer heads be worth the extra power? It won't be a race car, I'm not trying to get 600 hp. I think 300+ would make the car fast enough for street driving.


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