331 cam

[iismet]

Originally Posted by blykins

For a 6500 peak on a solid roller for your application, I would use the Comp Cams Xtreme Energy lobes. They are aggressive enough for power, but not aggressive enough to cause valvetrain issues.

How efficient the cam is depends on how well the heads flow, so with a decent head, I would go with something like a 230/234 @ .050", 112 LSA, .561/.561" with a 1.7 RR.

Those lobes work really well but aren't spring eaters or valvetrain breakers.

Thank You -

Originally Posted by blykins

I would personally rethink the Eagle bottom end and use the Scat crank and rods. Mahle makes a really light piston for this application that's already coated and has a thinner ring pack. Good stuff.

Can you expand on this- why do you prefer one over the other? I was going to purchase a forged kit. They both make one - Eagle supplies Mahle Pistons but they are probably not the ones you specify. You are right on the money - a lite assembly. I'll need to study this further.

Originally Posted by blykins

An aluminum flywheel works well with the road race applications, but keep in mind that an aluminum flywheel will make a high strung engine a little harder to drive on the street, and the result is having to slip the clutch more to get the car going.

My car is an ERA. ERA runs a heavier frame. I thought I would try to get the thing as lite as I could. It weighed 2440 with the 351. I store the car in the country and that is where it is mostly driven. I've never been a stop light racer - the car is iconic - when stopped at a light that is good enough for me - back roads are a different matter.

It's like the solid vs hydraulic for me - I'm committed. If there is not enough inertia I will swap it out.

Hugely appreciate your input.