How Important is 'Original'

Asked by GS64Chevelle Nov 26, 2018 at 07:43 PM about the 1964 Chevrolet Chevelle

Question type: Car Customization

I have a 64 Chevelle Malibu SS, purchased originally by a family member.  It
has a 283 with a Powerglide transmission.  Years ago I replaced the exhaust
manifolds with headers (manifolds are now rusted inside and out), put a
'chrome kit' on the engine (valve covers and air cleaner... but still have the
original parts), and put on dual exhaust.  However, I had to replace the front
bumper, grill, headlight trim... and will need to replace at least one interior
door panel along with some other interior parts.  I'm debating between
rebuilding the engine (burns oil... bad valves or rings) and live with mediocre
power and a two-speed/whiny transmission, or buying a pre-built 350 and
three speed transmission to put more muscle into it.  I also plan to upgrade
the brakes to disc for safety (at least on the front), so based on what I've
outlined, is there a compelling reason to go rebuild vs. upgrade on the
engine/transmission?

2 Answers

279,425

I would rebuild the engine. A few internal upgrades will give you considerably more power and it will look 100% stock. 250hp should be doable. You could install a 3 or 4 speed automatic, just keep the powerglide. The disk brake upgrade is something almost everyone does. I would keep ALL the original parts in case you sell it to a purist some day.

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