1964 Corvette Coupe: Twin Turbo Build

[_BQ]

Hey everyone,

I thought I would combine a site introduction and a build thread into one and get started over here. The car is a 1964 Corvette coupe that is currently undergoing a 4 month long twin turbo build. This is a pretty massive undertaking (to say the least) that is being spearheaded by my brother. In short, he’s a genius who has forgotten more than I will ever know about cars, with significant experience in high horsepower, forces induction builds and fabrication.

This is version 3.0 of the car. When I got it in 2016, it had a non-original, period correct 327 with a Muncie 4-speed in it. I took the car on the Power Tour in 2018 and long hauled it, but oiling issues ate the heads up and we decided to build a 383 for the car. The 383 was assembled and combined with a Holley Sniper, TKO-600, and (thankfully) Vintage Air AC and version 2.0 was born. We long hauled it on the HRPT again in 2019, and then we did the Emerald Coast Cruzin’ in PCB, FL, in the fall before we decided to go big with this forced induction build which started in January.

Here is the car before we started the new build:











The plan for the twin turbo build was to go back through the motor and refresh everything to withstand 1000+ horsepower. The block accommodates a hydraulic roller setup with LS7 lifters. The bottom end is a forged GM aftermarket crank and should be good up to 1400-1500 hp. The cam is a custom Comp grind. Heads are World Products Torquer S/R with big valves and a bit of port work, but nothing major. Compression on the motor should be right at 9:1. The intake is a Weiand low-rise single plane that accommodates direct port EFI, which will be managed by Holley HP. The throttle body is a Holley 4150 1000cfm unit. Injectors are Siemens 80lb. The distributor is a Holley Hyperspark that I previously used with the Sniper setup.

Here’s a few shots of the motor before it went back in the car. The accessory drive is the new Holley Mid-Mount in satin black. It is an extremely nice piece that really compresses everything into a tight package.









LS7 lifter setup in a SBC:



Oil cooler lines installed above the oil filter:



Motor going back into the car:



And back in its home: