This is for my 66 Chevelle SS396 with a date correct 396/360 BBC. I have the correct points disbt and want to know where to get the correct weights and springs without guessing. Also I might be in need if the eight inch balancer I know they can be rebuilt but I do not have a trailer queen. So I need one that I can depend one. I'm not saying I don't trust the rebuilt ones. I just don't know anything about them or know anybody who had one rebuilt. Thanks for the help even know its not for a vette
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Re: Source for BBC balancers and disbt springs and weights
Keith-----
Your application originally used a 7" balancer, not an 8". The part number was GM #3860008 but it's discontinued. You can obtain a virtually identical replacement manufactured by Dorman Products under their number 594-030.
Your distributor weights were GM #1881371. The springs were GM #1911484. Both are long-since GM-discontinued and, as far as I know, are not reproduced. Outside of SERVICE packaging, it's very hard to determine what the part number is of distributor springs and weights so used parts are pretty difficult to identify. Even NOS out of original packaging is a crap-shoot.In Appreciation of John Hinckley -
Re: Source for BBC balancers and disbt springs and weights
Joe thanks I guess the parts book does not give the specs for the springs and weightsComment
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In Appreciation of John HinckleyComment
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Re: Source for BBC balancers and disbt springs and weights
Thanks. I was having a hesitation on take off and I had someone help me and he swaped out the weights and springs with something else heavier and that helped it but it would be nice to have what belongs in there without a guessing game. Along with his stock pile of good stuff is drying up. I would have thought someone would pick up on making a select few of the weights for the high horse applications engines. Seeing how they are in high demand along with they were the ones that were messed with in the good ol days. Oh well. Back to the drawing board.Comment
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Re: Source for BBC balancers and disbt springs and weights
Keith, Collectors Auto in Oroville Wa. has the weights and also the balancer call 800-414-4462.Comment
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Re: Source for BBC balancers and disbt springs and weights
Keith,
And you are saying the hesitation problems are because of distributor weights and springs?Comment
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Re: Source for BBC balancers and disbt springs and weights
It was a mixture of the timing being off just a hair, the weights and the springs were too light not letting the vacumn advance working like it should and the carb jet squirters was not putting enough fuel in.Comment
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Re: Source for BBC balancers and disbt springs and weights
Keith,
Also keep in mind the secondary ignition parts like the plug wires, sometimes these age and will not deliver the voltage required to fire mixtures when they get lean like when a engine goes under load. The result can be a hesitation and gradually the spark plug gets dirty and fouls.
Some of the other fixes can be band aids for the real problem.Comment
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Re: Source for BBC balancers and disbt springs and weights
I wouldn't trust any available "weights and springs" without testing them on a machine, ON THE DISTRIBUTOR they are to be used with. There are a myriad of nuances in the design of the Delco top-mount weight distributors, and I don't trust any "combination of parts" without checking to either the original or your objective curve. My machine has seen hundreds and they don't get better with age...Bill Clupper #618Comment
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