Distributor Cap Difference

[firebane]

I am wondering what is the difference in distributor caps for our trucks.

I was on Rockauto and did a distributor cap search for a 1974 Chevrolet K10 and it came up with a cap that looks like this:

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But if I look up a distributor cap for a 1976 Chevrolet K10 it gives me a cap that looks like this:

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Why would there be a difference in caps between the two years if both use a HEI distributor?

 

[DoubleDingo]

That is an error on their part. The top one is not HEI. Unless there is a different HEI design that I am not aware of. All HEI's I have seen look like the bottom one.

 

[GTME94]

That top picture is a points style cap. That little metal part slides up so you can adjust the points. Also the middle terminal is for an external coil.

 

[firebane]

That top picture is a points style cap. That little metal part slides up so you can adjust the points. Also the middle terminal is for an external coil.

That is what I was thinking which is why I got confused for and thinking RA maybe slightly in error regarding this.

Unless some 350s in 1974 came with points?

 

[350runner]

74- 75 was the change from points to hei

Sent from the dust in front of you!

 

[firebane]

74- 75 was the change from points to hei

Sent from the dust in front of you!

That could explain! So I'm not off my rocker.

Thanks

 

[350runner]

Yup! No prob

Sent from the dust in front of you!

 

[Boonie]

my 74 had points originally. recently converted to hei. much better