I bought this cam for cheap to use in a 350, but I'm wondering what it would be like in a 455 with something like 9.5:1 compression. Any ideas?

It's a Speed Pro and came with Melling lifters

Intake: Valve Lift: .448 Duration: 280° Cam Lift: .280 Dur. @ .050: 204°
Exhaust: Valve Lift: .472 Duration: 290° Cam Lift: .295 Dur. @ .050: 214°

Difference between lobe centers: 112°

 

A bit small for a 9.5 to 1 BBO, though being so slow, you could probably run it on pump gas OK. There certainly are better ones out there.

 

Very mild in a 455, and a bit slow. That's a generic grind, available at your local Walmart as well. Lol!

Really, very mild, probably won't make much difference. Not sure it's worth the effort if you don't really NEED to do it. Your call.

And just an fyi, it's measured at .050, not .50.

 

Not to totally hijack this, but since those specs above are lacking, what would a good cam choice be for a 455 in my '71 Supreme with the following specs?

.030 over (hopefully no more than that),
9.5:1 (I'm under the impression that pistons alone should be able to achieve this, not sure at this point if any further machining will be done, may look into bumping to 10:1)
No major head work due to my budget (GA heads)
Hooker headers, 2 1/2" exhaust (no x or h pipe)
3.73 rear gears (350 turbo trans for now, but will be upgraded to a 2004r next year or so)

Just like everyone else with the 'whats best' question, wants good power, nice 'lope', etc.
Car will be mainly used for cruise nights, car shows, and short day trips.

 

That's what I was sort of expecting. Walmart, lol. Turns out that the heads on the 350 I bought it for are trashed, . I hate stock heads...someone should melt them all down and make a nice affordable head for today's Olds owners. Complete with hardened seats and bronze guides. I'd buy them


^no worries on the hijack bro, someone may have a good solution for you

 

Midrange, I like a 230/236 for your build, check with Cutlassefi for a cam..

 

They do, they're called Procomps

Midrange - make sure you know what piston you're going to use first. Just because it might say "10.0:1" in a book doesn't mean they will be.
For your build, with 9.5:1 or better I'd do an Erson TQ50, 228/235@.050 with .504 lift. That would work well for you.

Thanks

 

Thanks Mark.
I've been looking for Erson online, but come up empty, do you have a link to them?