roller cam for RWD (?)

[fancyboy]

The title says it..I have looking high and low for a roller cam.

The application is a 3.4 rwd engine..is this going to have to be a custom grind situation?

TIA.



P.S. I had asked here before if anyone knew where I could find some nicer (and taller) valve covers..turns out that ARI has some specially made for them. They are die cast with either the smoothy look or you can have them engraved.

[sharkey]

RE: roller cam for RWD (?)

crower lists (or used to) a solid roller cam, but i beleive they have to custom grind them.

[geoffinbc]

Anyone can make em if they are solid lifters. They cannot be hydraulic. The NON priority main feed block will not support them. TurboZ24 has done it with the same style block you are using ask him where the parts came from.

[Guest]

yea I know Crane makes like 6 Mech roller cam grinds for the 60 degree. They aren't listed in teh catalog though.

Turboz24 ended up using 2 sets of different lifters if I am not mistaken with his block so he wouldnt' have oiling problems.

the cam is going to run you about $350 from crane. Lifters might be that much too.

I have actually thought abotu going with the crane cam with my aluminum block. Its just deciding on if I want to spend $700 for lifters and a cam when I can do the same for about $200 with a flat tappet.

[TurboZ24]

Crane actually only lists mechanical/hydraulic flat tappet cams. The cams listed on that page for some reason include the 90 degree V6 (the Chevy 4.3), not th 3.1.

The big reason too go with roller mechanical is higher max rpm, much faster cam ramp, etc which will all improve output. I simply did it because I had issues with flat tappet cam failure over and over again. I can tell you that the difference between a mechanical flat tappet and the roller. The car was equally as fast on 8 psi with the roller as it was with the flat tappet at 12-14 psi.

[fancyboy]

Turbo,
For my own information, where did you go for yours?

This engine will be going into a little sports car (MGB), but I still see a need to increase the lower end torque and upper HP (along with rpm)..rollers will well be worth what I want this sombination.
I also will be going with 10.5 CR and considerable attention (for good overall street performance) will be paid to the heads and intake manifold.

ARI seems to offer alluminum heads, but I will need to verify that these are indeed RWD heads..I will be going with a Demon carb (390cfm).

[fancyboy]

Excuse the double posting.
Yes, I found that the roller cam will do wonders for lower end torque and upper HP, and as previously stated- rpm.

[bszopi]

There are no RWD aluminum heads, so you are out of luck there. The only way to do it would be to use an entire FWD top end.

Curtis (TurboZ24) got his cam from Crower.

[fancyboy]

And the problem there of course is that no one offers conventional carb manifolds for the FWD.

Money is not really a concern, and I know that this configuration is really going to prove impressive..in a 1980lb car.

Thank you all for the input.