Quadrajet Problem Solving > Quadrajet Parts and Numbers

17057553 specs

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4speed455:
I can’t find a breakdown for the 17057553 carb for rods/jets combo. I know it’s a 1977 small block Oldsmobile California model and it has 76 jets and CV secondary rods but I can’t find a stamp on the primary rods. I plan on building this for my factory stock 455 olds motor after I do a cam swap. I’m not sure what cam I will be using now so I don’t need suggestions yet, just trying to I’d the primary rods. Also does anybody have a link with the breakdown for this and other similar carbs? Thanks Joel.

Kenth:
17057553 uses #74 jets, 50M pri. rods and CV sec. rods from factory.

Cliff Ruggles:
To effectively set it up for a 455 build it will need a different jet/rod combo, power piston spring, etc.  Call me at the shop and I'll set you up with the correct parts. I've done scores of those units for folks on a similar path and can nail down the tune first time around taking the guesswork out of the equation......Cliff

4speed455:
Kenth, thank you for the info and Cliff, I was will call you for the setup when I decide on my cam. I’m trying to get my 70 series carb from my other thread dialed in first, the cam swap won’t be until next year.

Cliff Ruggles:
I build engines for a living and have a lot of experience with Olds and Pontiac 455's.  First determine the heads you'll be using, then the compression ratio.  For the Old's 455's there are a lot of piston choices and most are dished so you can put the compression pretty much wherever you want it.  I shoot for 10 to 1 with most of my street 455 builds with iron heads, some go much lower.  Depends really on the goals for the project, power level desired, etc.....

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