My uncle loves his .509 cam but was thinking about going a little bigger. What's the next lift up??? I thought the biggest you could get was a .533 but not sure.
This is a street car, 440, 10:1 comp, 915 heads, Holley Street Dominator intake and 850dp.

Thanks

I don't believe the .533 is available anymore, its really too big for a hydraulic anyway. If he wanted to stay with Purpleshafts the next step would be the .557 solid cam, which would likely run about the same. It specs bigger but once you subtract the lash you've got about the same duration, .010 more lift, and 2 degree wider LSA.

Are the heads ported? And is he running the old 108 LSA 509 or the 114 LSA 509? You're not going to get much bigger than the 509 on a hydraulic, you might get a bit more lift with a modern profile, but thats it.

Yes, heads are ported with big valves and a solid cam is out of the question for him. He will be 75 in July and wants his 68 RR,turn key and HAMMER DOWN with no adjusting things. Haha. Yes, he has the .509 but needs a new cam and was thinking about going bigger but if the .509 is the biggest, he will get another one. He had a Comp Cam .510 lift and hated it!!!!!
Oh yeah. Not sure if it's the 108 or 114. I'm thinking he used the old 108 because it was in his car for a long time.

Performance wise, what would be better, 108 or 114???? It has a 727, 3800 converter and 4.56's. The motor is at the machine shop now getting buttoned up soon.

Call Jim at Racer Brown and see what he has. Or Cam Motion. I like Jim at RB a lot. You can get a bit bigger on the hydro but I agree that he should be usings solids. He shopuldn't lash the valves more than once a year. And he could pay someone to do that.

FWIW...other than idle...I'm not a wide LSA guy...especially with production style heads.

Hughes have some good grinds as well. A street car with 4.56 gears.

Depends on what kind of streets... if you're going 1/8 to 1/4 mile between traffic lights, 4.56 is a lot of fun. Freeway, not so much!

Don't you remember the little old lady from Pasadena?

Yes, 4.56's on the street. He's been using them on the street for 25 yrs.

Looks like he's going with the .509 since the .533 is discontinued.

The 108 would be better performance wise. More low end as a result of the intake valve shutting sooner. Further I would install the cam about 102* to 104* ICL, for even more streetable performance if he Has enough p/v clearance.

Howards make some very nice .904 based camshafts for a 440...and very nice priced from Summit racing.

Would a hydraulic roller be considered?

HUG SEH4246BL-8

This one looks real nice!