Labor cost to replace cam Options

[RFoulds]

I have an awesome 2056 motor. Problem is, its too racy. It doesnt really come on cam until 4000 rpm, then it pulls like a horse to 6500rpm. hi compression, either 10.5:1 or 11:1, depending on whose notes on the build sheet I believe.

Sine I am done racing this car fulltime, and motor only has 30 hours on it since a refresh, I am hopeful that replacing the cam and lowering compression will be enough to make this streetable. of course, there will be more tuning involved than this, but, basically, those will be my first two steps.

I have chosen a Webcam 86a, with new drilled lifters. I can pretty much estimate all the costs associated with this except, splitting the case and replacing cam.

What do you think a good builder, like Jorge at European Motorworks, would charge for that part of the process?

[RFoulds]

I am probably going to be 9:1 or 9.5:1, just lower enough that I can run pump gas. right now having to use 110. how to get compression down will be determined once we see what we have. I have the build sheet, which specifies the pistons are flat top. so, will it be new P&C's, some head work, dish the current pistons, or just shim the barrels. dont know yet.

thanks for your price estimate. thats a reasonable amount.

[VaccaRabite]

I am probably going to be 9:1 or 9.5:1, just lower enough that I can run pump gas. right now having to use 110. how to get compression down will be determined once we see what we have. I have the build sheet, which specifies the pistons are flat top. so, will it be new P&C's, some head work, dish the current pistons, or just shim the barrels. dont know yet.

thanks for your price estimate. thats a reasonable amount.

Unless there is an issue with your pistons and jugs, I would just re-ring while you have it apart and rehone the barrels. You can always raise the deck height with base shims, and it does not take much.

Once you have the head volume, you will have all the things needed to calculate your target deck height in order to get your proper CR.

But, if you are using cut to length steel pushrods you will likely need to make a new set for the slightly spaced out cylinders. Not hard at all, but a bit time consuming. And its possible that your current pushrods are still in spec depending how far the barrels have to move to get your correct deck height.

BTW, your build sheet may have the CC value for the head volume - but I would still remeasure - lots of threads on how, including one I did. On my engine the volume written on the heads were several CC off, and that has a big effect on the calculated CR.

Zach