bronze gears

[hauss]

Ok then if you do not know what material your cam is what would be the best gear to purchase ?

[Gaz64]

Is it a roller camshaft or flat tappet camshaft?

[blykins]

Easiest way to tell is to put up a spec sheet of the engine, or better yet, the cam card. You could also call the builder and ask what/which cam it is.

Second easiest way is to pull the distributor out and shoot us a picture of the cam. Cast core camshafts, even rollers, are very rough between the lobes, because they...…..are...…..cast...…… Billet cams are made of a billet of steel and have a more machined appearance.

[patrickt]

Originally Posted by hauss

Ok then if you do not know what material your cam is what would be the best gear to purchase ?

If it were me, I would not rely on a build sheet or cam card unless I was absolutely 100% positive it was correct. Even then, I would still pull the distributor out and post a hi-res shot for the geniuses on this forum to opine on. You've got to pull the distributor anyway, regardless, so snap a pic and post it -- what's the downside of that? The last thing you want is to think you have a beautiful steel roller, when really you have an old iron flat tappet like me.