The ZR1 option available exclusively with the LT1 is significant for engineering, though not many saw production. It was a special racing package that included the solid-lifter small-block engine, heavy-duty four-speed transmission, power brakes, aluminum radiator, and a revised suspension with special springs, shocks, stabilizer bar, and spindle-strut shafts. Since it was competition equipment, the ZR1 could not be ordered with power windows, power steering, air conditioning, a rear-window defogger, wheel covers, or a radio. But the ZR1 package was quite expensive, and few Corvettes were so equipped.

The Special Performance Package, known as RPO Z06 was created to market a turnkey racecar to the public. The Z06 option included unique dual circuit power brakes which included sintered metallic linings, that were larger than the standard metallic linings, vented backing plates, larger finned brake drums, cooling fans in the drums, self adjusters that work going forward instead of the standard when backing. The suspension modifications included heavy-duty rear transverse spring (7 leaves rather than the stock 9 leaves), heavy-duty front springs and specially calibrated shock absorbers all around. A 36 gallon fuel tank that took up most of the area behind the seats and aluminum knock-off wheels were initially required as part of the package but were dropped from the list in January 1963. Besides the Special Performance Package, additional extra cost options were required before the package could be ordered. There was the 360 horsepower fuel injected engine, four speed transmission and a posi-traction rear end. By the time you left the dealer you'd spent nearly seven thousand dollars. The Z06 option at $1,818.14 plus the other required options added $661.75 to the base price of $4,252.