Need your feedback!
So it's getting about that time to start gathering up the parts for my new ZL motor and send it off to Pettis Performance to have it built and dyno'd. I'm hoping the engine experts here on Lat-g(especially that bald eagle) could take a moment to review my specs and parts list and see if things check out okay. I'm including the cam specs that Comp Cams sent me.
Summary: 489 build using newer ZL1 block, shooting for around 625 to 650HP, shifting around 6300RPM, hydraulic roller cam, with about 10.3:1 compression, with multiport fuel injection. This is for high performance street car, NOT a race car. I know that I'm probably losing about 15-20HP by going with the cnc'd Eddy heads instead of AFRs, but the Eddy's leave the exhaust port in its original location which allows me to use my current headers instead of having to spend $2K on new Lemon's headers. I'm fine with that slight loss in HP. I'm upgrading the springs and retainers on the heads to avoid valve float.
High-level numbers:
What Comp Cam's wrote and spec'd out for me(I probably need a Gen IV core and not a Gen VI core, but the specs are the important part here):
"Christopher looks like an awesome set up. Here is what I am looking at. This is a custom grind on the gen VI step nose core. This will get you the power that you are looking for as well as enough vacuum to be tuner friendly with the holley efi. "
Major Components list:
Thanks in advance for your feedback.
