I’m changing out the stock intake manifold on my 60,000 mile 1972 455. I’m wondering if there is any point in going further and installing a different cam when it’s a low compression motor. I feel like I’ve always read that a more aggressive cam without an increase in compression is not a good idea. I’m installing a Performer intake along with Holleys new Hyperspark distributor (I’ve been running a Sniper EFI system for the past year).

thanks for your input on the cam

 

The factory cam in those years is very small, so you can definitely improve upon it. Just don't go too large on duration and it will be a noticeable performance improvement. I'm sure some of the engine building experts will give recommendations.

 

x 2

 

I was considering the edelbrock 2152 cam. My motor is the U code 455

 

PM Cutlassefi and get a cam from a company that grinds camshafts.

 

I looked up the specs on that cam and it's the generic 214/224 grind.

• Lift: .472''/.496''
• Duration @ .050: 214°/224°
• Advertised Duration: 288°/298°

While it would probably work OK, I think there are much better options out there. As said above, contact Cutlassefi and get his opinion as he has Olds engine building experience, works closely with cam manufacturers, and would be able to give you a recommendation of what would work best for your application.

 

I would agree with what the others have said, a custom cam for sure. Most off the shelf grinds are pretty conservative. Or they are simply copies of grinds optimized for chevy engines, then ground on Olds cam blanks. Mark (EFI cutlass) has forgotten more about cam design than most of us will eve know.

 

What car is it in and what is the rear end ratio?
X2 on Cutlassefi

 

1972 Cutlass Supreme, 455 U code, TH400 and the rear has 3.08's

 

If you want an off the shelf cam. The comp 260h is a great cam. Im running a 8.8 to 1 compression 350 with that cam and the Holley sniper. I just found out about their hyperspark so I will be adding that too.