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I am pleased to present this one of a kind 1963 Chevrolet Impala Z-11 for your consideration. The Z-11 Impala was based on a standard 1963 Impala 2 door hardtop body with the exception of a few weight saving aluminum body parts. The hood, front fenders, front and rear bumpers including brackets were all aluminum. The most important feature of the '63 Z-11 engine was a stroked crankshaft bringing the engine up to 427 CID. This displacement figure was arrived at by both NHRA and NASCAR as the legal CID limit for stock car racing. The reasoning behind this decision was that both sanctioning bodies thought the cubic inch race was getting out of hand, and the brakes needed to be applied by limiting displacement size. Ford was already rumored to have plans to field a 483 CID monster motor in 1963, and that was enough to spur both associations into action. A 7-liter (427.2) was decided as the most logical engine size to standardize on. Here's what Hot Rod Magazine had to say about the famed Z-11:" Based on the standard 409 block, the Z11 plant was fitted with a stroker crank. The Z11 heads also differed from the standard W-head 409 designs, featuring large, oval intake ports that were significantly taller than the HiPo 409's. Atop the engine was a two-piece aluminum intake capped with the same dual Carters used on the 409. Over those was a completely unique air cleaner which featured an "arm" that plugged into the firewall (sealed by a rubber boot) that drew air from the cowl."
"The engine became available as RPO (Regular Production Order) Z11, but there was far more to a Z11 optioned Impala than just an engine swap. It was all-business and designed for drag racing. The radio and front sway bar were history. Luxuries such as sound deadener, radio and a heater were tossed. Only the "dog leg" shifter and Delco electric tachometer were standard."
"An extensive list of aluminum front end components substituted standard production parts, including the hood, fenders, front and rear bumper, as well as the brackets and braces, grille brackets, a two-piece fan shroud, the grille filler panel and hood support catch. With these, the car weighed in at about three hundred pounds less than an equivalent 409-powered Impala off the production line."
"The Z11 also featured a deep sump oil pan – which looked somewhat "homemade" to the untrained eye, but touted a deeper sum welded into the pan from the factory. The Z11 heads also used push rod guide plates, while the Impala rolled with sintered metallic brakes, special air scoops in the backing plates for cooling, a Borg-Warner T-10 4-speed transmission and strengthened Posi-Traction rear axle built with 4.11 gears. The result was a hugely capable car that, in the hands of Ronnie Sox, was regularly turning in low 11.20-second ET's."
This is one of a handful of survivors left today, and has undergone a several year restoration of both body and drivetrain, using only factory parts, not reproduction pieces. It is impeccably finished inside and out, and likely the finest example of the Z-11 that you'll find. With a storied racing history and past, this is a one of a kind find for the serious collector
You probably know resto-mod, but you might not be as familiar with pro-touring. A resto-mod is a vintage vehicle that has undergone a restoration in which many of its beneath-the-skin components have been modernized while keeping the car’s basic appearance classic. The idea is to have a car that looks vintage but that can be […]
Chevrolet on Thursday built its last Impala, bringing to close a nameplate that dates back to 1958. The final example, finished in red, is bound for a customer and not Chevy’s own private collection. Impala production in recent years has been handled at General Motors’ Detroit-Hamtramck plant, with the big sedan built alongside the unrelated […]
The Pick of the Day is a family sedan with Corvette power
California couple traveled nationwide this year, hitting every one of the hot rod and custom car extravaganzas
Pick of the Day is a 1963 Chevrolet Impala with a 427 Z-11 package
Lowrider magazine and Quaker State building the car to sell for charity
The Pick of the Day was purchased by the current owner in 1964
Pick of the Day ordered with cloth bench rather than vinyl front buckets
Pick of the Day was owned by one family for more than 40 years
In these strange times, there are many questions people are trying to answer. Such as, with things opening up so that you can take your classic car on a road trip, what do you do if that drive lasts more than an afternoon? Would you really want to stay in a hotel, Airbnb or VRBO […]