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Old 09-07-2005, 01:34 PM
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Source for Oldsmobile distributor compatibility?

I have a 1965 Oldsmobile 330 cu. in. V8 engine with a Delco-Remy breaker point distributor. (They stopped making the 330 in 1968.) I want to change it to an electronic ignition system. (Olds started using electronic ignitions on '75 and '76 models.) I am seeking information on the compatibility and swap requirements for an electronic distributor from a '76 or later 350 cu. in. Olds V8. (I would like to stay with dependable original equipment rather than go the Crane-Mallory-Pertronix route.) I know nothing about Oldsmobile company literature/publications and where to look.

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Old 09-07-2005, 04:11 PM
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HEI to use:
When replacing a points distributor, you will want to use the 4-wire HEI found on 1974 to 1979 vehicles. The same Olds HEI or points distributor will drop into a 330, 425, 350, 455, 403, 260, or 307.

All 1964-1990 (except 394) Olds engine distributors interchange, including points distributors. Since, each GM division used a distributor with unique shaft dimensions, you will need to get one from an Olds engine to work in an Olds engine. Buick for Buick, etc. The aluminum shaft of the distributor is unique for Olds, having distinctive shapes to parts of the shaft. It usually has some blue overspray on the shaft as well.

In regards to which HEI is more performance oriented, well, you'll have to figure that out yourself, but in general, they are all about the same. For more performance, the distributor will have to be recurved. See the Tuning section.

There are lots of HEIs in the salvage yards for cheap. A 1979 Firebird 403 would be good; a 1979 Toronado 350 may have a better curve. Grab the wires too if converting (for 12V and tack). A lot of places have rebuilt ones; a few build them from scratch (translation: expensive). Get new plug wires and cap at least. Probably some work will be required to clean, lube, and recurve them.
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Old 09-07-2005, 07:42 PM
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like elliott said go to they have everything you need to do anything. but your liucky to get that 330. the steel crank is desireable. and the 330s make alot of power for thier small size.
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