six pack carb #s help

[jburt]

going through some carbs i have and was trying to figure out if they are original or replacements. there are no chrysler numbers on them.
front carb....4671..0840
center carb...4669...2040
rear carb...4872...0120
extra rear carb...4790...0900
thanks for any information.

 

[Mr Belvedere 30144]

1971 six barrel carbs.

auto center - R4670
4spd center - R4669
front - R4671
rear - R4672

4790 = 70-71 340 outboard

 

[Daves69]

Mr Belv,
I have the 70 Auto set as being ...
Front 4382
Center 4376
Rear 4383

Maybe 71's on the 46xx?

 

[Mr Belvedere 30144]

You are correct I made a typo the carbs he asked about are all 71 carbs the 70 are all 43xx as you have stated. Thanks for the correction!

I have the 4144-1 reproduction carb with the cast # 3418550 a 1970 (used for 1969-1970) 440 center and 2 original production 4790 carbs that are the 1970 340CID outboard carbs on my 65's 440

 

[jburt]

thanks for the info. wasnt sure if these were original or replacements. thanks.

 

[Mr Belvedere 30144]

These days it's hard to tell because Holly offers correct replacements with old part numbers and casting numbers and even date codes. Some things like hex head bowl screws instead of slotted and torx heads on bowl vents are a give away.