Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

Would putting the hp525 cam in a 500hp give a decent gain?

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

If You Bring The Comp Up And Do Some Head Work.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

That should be interesting

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

Sounds like a good upgrade to me.
From what I have read here on this forum, the 525EFI cam is a Crane 741 ground on a 114 lsa.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

with the 114 lsa, is this cam better suited for efi than carb? will the 114 lsa give a flatter torque curve, but lose signal to carb when engine is at an idle?

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

My guess is that with the 114 lsa the vacuum would be higher at low rpm.
The 454/502Mag cam is the same for carb or EFI and I think 115°lsa.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

I went with the crane 731.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

I was just wondering why mercury racing would chose a 114 lsa instead of 112? is it because of overlap or water reversion? I've tried the 731 in a hp500, what it seemed to gain in midrange it lost some at top end.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

I think its more the total package. The 731 is a 112lsa and the stock hp500 is 110lsa. The 525 cam is 114lsa.

Im hoping for some top end gains from the stock hp500 carb to the 731.

Re: Will putting a hp525 cam in a carb'd 500hp make a big difference?
 

Great cam great combo ,go for it!

How'd this end up working out? Sorry to pull up a really old thread, but I'm curious on outcome.

I put 731's in 450 HP 502's and really seen a big difference.. I didn't do any dyno pulls so I really don't know how they changed the engine's specs..

I wouldn't expect huge gains going from a HP500 Roller cam to a 525EFI cam. It should pick up a little bit, maybe 100-200RPM at wot throttle. You'd probably wanna be spinning the engine a little faster than the 5200RPM redline on the HP500. Engines would probably make around 500-525HP on a dyno with the 525cam.. Switching to a decent set of aftermarket heads, 600HP is realistic, the stock GM heads are the limiting factor.

With the 525 cam on a blue printed true 9:1 502 it made 560hp after a change in carb jets