The old made early Hemi Weiand dual Carter intake is that bored for the older square bore or the spreadbore ? If I get it right the pre 57 had the square bore carbs but the Chrysler 300 in 57 had the spreadbore. The 392 intake look as as a Weiand but the early Chrysler dual Carter has another design. Nothing wrong sith square bore, just did like to get the information. I build upp a std 392 for a hotrod but little more comp/cam then it feel odd to use the older carbs on it. Look for a old Weiand intake but can’t find one, but this question came upp.
A buddy restore a engine to a customer, its a 57 300C convertible, but its has a 354 but look at the intake, its a 2-7-57 cast 7 February ? ( 392 ) intake and ports is equal so no spreadbore ( a 392 had AFB carbs so intske must been spreadbore std - or ) and carbs is the older Carter.
The old 7263 must been spredbores and the one I seen in Sweden has another number WC2QE must bee squarebores.
Has anyone a 300C 392 intake so I can see if the holes is drilled for spreadbore as Chrysler had the AFB 1958 ( spreadbore ) but the 392 came 1957. This is a intake cast in 57 and its a true 300C and look at holes, equal, so no spredbores. Carbs is std the small Carter squarebore. Ideas ? -So how look at cast in 1958 392 intake ?
I have quite a bit of 392 stuff, but no dual-quad intakes . . . so I can't help yah. Are you going away from your initial flathead idea to a early Hemi? That sure changes your build parameters by a bunch!
No, I was helping a nostalgica dragster customer install new caps, bore/deck, O-ring and order a Bryant crank, balance etc, and as a Hemi dude ( 426 Hemi ) I got into get one to look at in the shop, so I found a 354 ( was have a crack ) so I sold it and bought parts to a 392. Build up will be most with the std parts but little more cam and comp and maybe a Hot-Rod intake, but I don't say no to a std 300C intake either. Plus information is never hard to bare. Idea was a second ch***ie to my 5W body, but it will has the FH as being machined now. So if the Hemi comes into the coupe later on time will tell. But as we speak. I might found a old Weind intake here in Sweden and its the square bored version. So I has found carbs in USA ( the small ones at 3-400 CFM ) I guess it's 'better' to go for the 58 style AFB spread bores, as maybe more 'street' drives. But if not going into that plus the Weiand intake is square bore and I don't like use adaptors. So what is your ideas on this old smaller Carters on a aplication ( rather hot profile cam and 10.5 in compression ) and see it as a Hot-Rod engine.
If I get a Weiand, should I get the squarebore ( I know of one ) or wait until I find the spreadbore Weiand #7263, I showed picure about above, or is the cool thing with the early/er squareport intakes Weiand made (?) I also showed a picture on. I guess to find a spreadbore std 392 intake will be Very hard. I located up one std but its 1956 354 300C. Se picture in a book.
Manifolds above are for what’s commonly called square bore and NOT spread bore which started with the 1966 Rochester as I member. The one with carbs is commonly called “small base” even though its actual bolt pattern is the closest to being square. The additional bolt holes on the manifold was to use the early Carter AFB’s. The replacement AFB’s had addition mounting holes as I remember.
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