With all my books at the restorers I am going nuts with the little details. I sure am glad the discussion board is available and I do appreciate all the top notch advice I recieve. My question: Doesn't one of the exhaust manifolds on the '56 210HP motor have a hole in it for the choke heater tube? Mine do not and since I do not have the manifolds or my books here I am at a loss. I do know the correct numbers are 3731557 and 3731558. If the manifolds are supposed to have the holes and mine don't, what year might mine be? Thanks!
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Re: '56 Exhaust Manifolds
Steve,
The passerger side manifold (558) should have a choke tube hole in it. Very likely the manifolds will be dated coded on the block side, hard to see. I'm at a loss as to why your 558 does not have the hole. Regards, -
Re: '56 Exhaust Manifolds
Steve,
The passerger side manifold (558) should have a choke tube hole in it. Very likely the manifolds will be dated coded on the block side, hard to see. I'm at a loss as to why your 558 does not have the hole. Regards,Comment
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Re: '56 Exhaust Manifolds
According to the book(NCRS Spec Guide) those casting numbers were for the 1956 2nd design All engines. They do NOT show again for any earlier or later application. Are you sure there is no hole? An exhaust manifold of this era which had no hole came on F.I. engines since they used an electric choke. This means they had no need for the exhust heat
for the choke. Of course F.I. engines were found in 1957 not 1956. However, a thought comes to my small mind. The manifold you have was a NOS which was never put on a car at the factory. Hence, it was never drilled for any specific application. -OR- it was installed at the factory on a car which did not need heat from the exhaust manifold. Now what engine would that be? Hmmm? Is there a casting date on these manifolds?Comment
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Re: '56 Exhaust Manifolds
According to the book(NCRS Spec Guide) those casting numbers were for the 1956 2nd design All engines. They do NOT show again for any earlier or later application. Are you sure there is no hole? An exhaust manifold of this era which had no hole came on F.I. engines since they used an electric choke. This means they had no need for the exhust heat
for the choke. Of course F.I. engines were found in 1957 not 1956. However, a thought comes to my small mind. The manifold you have was a NOS which was never put on a car at the factory. Hence, it was never drilled for any specific application. -OR- it was installed at the factory on a car which did not need heat from the exhaust manifold. Now what engine would that be? Hmmm? Is there a casting date on these manifolds?Comment
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Re: '56 Exhaust Manifolds
Steve----
Are the manifolds that you have original or reproduction? These manifolds are EXTREMELY difficult to locate in original form. The originals suffered from a poor design and "thin wall" problem. Consequently, many of them were broken and replaced by later casting number manifolds.
Reproductions are manufactured by Paul Baker of "Goat Hill Classics". Paul designed the molds for these to have a thicker casting cross section but, externally, they appear the same. The extra thickness is all on the internal configuration. I don't know, though, if these manifolds are supplied by Paul with or without the choke tube hole.In Appreciation of John HinckleyComment
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Re: '56 Exhaust Manifolds
Steve----
Are the manifolds that you have original or reproduction? These manifolds are EXTREMELY difficult to locate in original form. The originals suffered from a poor design and "thin wall" problem. Consequently, many of them were broken and replaced by later casting number manifolds.
Reproductions are manufactured by Paul Baker of "Goat Hill Classics". Paul designed the molds for these to have a thicker casting cross section but, externally, they appear the same. The extra thickness is all on the internal configuration. I don't know, though, if these manifolds are supplied by Paul with or without the choke tube hole.In Appreciation of John HinckleyComment
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