Has anyone installed a 445 CI big block in their CR?

[cycleguy55]

Originally Posted by MaSnaka

I'm in the process of replacing the short block 390FE in my car. Considering this an opportunity to make a power upgrade and installing a 390 stroker with a hydraulic roller. I will hook it up to a TKO600 with .64 overdrive, 370 rear end. This will be sourced from Barry at Survival. Any thoughts or experience you can share? I already have edelbrock RPM heads and intake AED 750 mech carb, currie 9".

Thanks,
John

0.64;1 OD with a 3.70:1 rear end gives you an effective ratio of 2.37:1. I've seen others comment on regrets of going that low, perhaps wishing they'd gone with a 0.82:1 (eff FDR of 3.03:1). To be fair, there are fans of both and, of course, it depends upon typical speed limits, camshaft selection, tire size, etc.

A selection of related threads that may be worth browsing, if you haven't done so already:

• TKO600---.64 or .82
• Best/Worst decision when ordering SPF MKIII
• TKO-600 cost to convert .64 OD to .82?
• TKO 600 question - .64 O/D or .82 O/D?? Whats your experience/preference and WHY? - FFCars.com : Factory Five Racing Discussion Forum