400-450 cam options

[68GTX4SPEED]

I have a 400-450 stroker, zerodecked Edelbrock RPM, CR 10.34, is a Lunati 10230701LK a good choice, don't want a monster just a strong bottom daily driver, 727 2500, 3.23 28" tires, power brakes and a Fitech 30002 so I need the vaccum.

 

[fratzog lover]

Duration numbers are close to factory 440 mag numbers. Great cruising torque and mild as far as B block stroker cams go. How hot are the summer temps in Sweden? What is the octane of premium in your area?

 

[747mopar]

I've got a very similar engine (stroked 400), this cam works very nice for cruising with good power. Idles nice with a healthy sound and pulls good vacuum (15). Comp Xtreme 23-230-4

 

[justcruisin]

That is a very mild cam, I can tell you that with that combo a hyd FT with a duration of around 230@ 0.050" will give you about 12 - 13" of vacuum. From what you say it sounds like you would be more happy with something a little smaller, maybe around the 225@50 mark in a hyd FT. The cam 747 mopar talks about is a solid.

 

[68GTX4SPEED]

Duration numbers are close to factory 440 mag numbers. Great cruising torque and mild as far as B block stroker cams go. How hot are the summer temps in Sweden? What is the octane of premium in your area?

Normally 65-90F Octane is max 94

 

[68GTX4SPEED]

I can also mention that I have the Lunati on the shelf, and is it a good choice or should I buy another one, want the car to handle so my daughters also can drive it.

 

[68GTX4SPEED]

That is a very mild cam, I can tell you that with that combo a hyd FT with a duration of around 230@ 0.050" will give you about 12 - 13" of vacuum. From what you say it sounds like you would be more happy with something a little smaller, maybe around the 225@50 mark in a hyd FT. The cam 747 mopar talks about is a solid.

That will be one step up to the 10230702LK, do I gain so much it's worth to buy that one instead? I'm worthless with Cams, I like the 8 3/4 much more.

 

[justcruisin]

If it was mine I wouldn't run a cam that small in that engine, firstly I would be worried about the amount of dynamic compression you will have with a 10.34:1 engine on pump, probably up around the 8.7 mark. A slower rate cam might well be better for you. Give Porter racing heads a call, he has a wealth of knowledge on cam selection for BBM. I would not be surprised if you get a bit of engine knock down low if you fit that cam.