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Re: 63_Misc engine questions
There is no engine code in the VIN on '63s. The only way to determine the original engine HP rating is to look for other circumstantial evidence. The 350/300 HP engines have tachs with a redline of 5300; 6500 on SHP/FI engines. The transmission can also be a clue if it is original - 250/300 had a wide ratio and SHP/FI had a close ratio. Also, 250/300 only were available with 3.08 or 3.36 axle ratios. SHP/FI were available with these and four others from 3.55 to 4.11.
All '63 engines had a single point distributor with centrifugal and vacuum advance. The input to the ballast resistor comes from the ignition switch. The ballast resistor is at the extreme right hand side of the shop manual wiring diagram, Fig 41a.
The tube you refer to is part of the choke clean air system. A hose from the carb. air horn routed to a tube, which runs through the exhaust manifold, with a another tube to the choke housing. A vaccum port in the carb body draws clean air from the air horn, through the manifold and into the housing that contains the thermostatic spring that operates the choke valve.
The device above the regulator would be the horn relay. Since your inlet manifold is aftermarket I have no comment on the brass plug it contains.
Duke -
Re: 63_Misc engine questions
There is no engine code in the VIN on '63s. The only way to determine the original engine HP rating is to look for other circumstantial evidence. The 350/300 HP engines have tachs with a redline of 5300; 6500 on SHP/FI engines. The transmission can also be a clue if it is original - 250/300 had a wide ratio and SHP/FI had a close ratio. Also, 250/300 only were available with 3.08 or 3.36 axle ratios. SHP/FI were available with these and four others from 3.55 to 4.11.
All '63 engines had a single point distributor with centrifugal and vacuum advance. The input to the ballast resistor comes from the ignition switch. The ballast resistor is at the extreme right hand side of the shop manual wiring diagram, Fig 41a.
The tube you refer to is part of the choke clean air system. A hose from the carb. air horn routed to a tube, which runs through the exhaust manifold, with a another tube to the choke housing. A vaccum port in the carb body draws clean air from the air horn, through the manifold and into the housing that contains the thermostatic spring that operates the choke valve.
The device above the regulator would be the horn relay. Since your inlet manifold is aftermarket I have no comment on the brass plug it contains.
DukeComment
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Re: 63_Misc engine questions
Steve,
You have to go back to the 283 2-4bbl engines for a centrifugal advance distributor but they weren't tach drive. Sounds like a conversion to electonic or possibly an aftermarket distributor. Some people remove the vacuum advance for racing only engines or to help avoid detination when running high compression and big advance. The ballast resistor isn't used with electronic ignition so it was probably pitched.
TomComment
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Re: 63_Misc engine questions
Steve,
You have to go back to the 283 2-4bbl engines for a centrifugal advance distributor but they weren't tach drive. Sounds like a conversion to electonic or possibly an aftermarket distributor. Some people remove the vacuum advance for racing only engines or to help avoid detination when running high compression and big advance. The ballast resistor isn't used with electronic ignition so it was probably pitched.
TomComment
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Re: 63_Misc engine questions
Duke, Tom
Thanks for the comments. I'm going to look more closely at the distributor and resistor to see if I can find a brand or part # that might shed some light on this.
SteveComment
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Re: 63_Misc engine questions
Duke, Tom
Thanks for the comments. I'm going to look more closely at the distributor and resistor to see if I can find a brand or part # that might shed some light on this.
SteveComment
Comment