Re: 1978 454 solid cam, all street..
Posted: Tue Jan 14, 2020 7:48 pm
We used to buy the 6209 Marine cams from Ligenfelder as take outs for like $25, bought a ton of them and sold all of them but one, which I still have today. It is on a 116.5° LCA and will pull 7K with the right springs. I sold a 6209 to buddy that put it in his 76 3/4 ton Pick up. He called and said I sold him some bum springs then I asked how high he was taking the 454 to, he said about 5K, is that what the tach said, no I just think that what it stops at before the engine breaks up. So I went over there with a tach hooked it up and we went for a ride, sure as heck as he wound it up there was the dreaded valve float but the tach was at 7K, YIKES!. I showed him that and he started shifting it at about 6300 after that. That old cam was great. As I recall GM said for street use advance the cam 6° for best low end performance.