2000-2004 VT, VX, VY GTS, SV300 5.7 C4B Calloway

All Stages of Power Packages are based on installing into a STANDARD Car. Every Stage includes all the parts listed including Installation and GST so simply choose any Stage you want from the get go, you don't need to do each stage. This is a full Drive in Drive Out Service. If your car already has some exisiting parts in a Stage then please contact us for a quote to do the rest.

C4B Calloway Engines are tuned MAFLESS from the factory so all mods require a full custom Retune. Lifters and Camshafts are a known weakpoint in these 300kw cars, even with low km many had the Factory Camshaft Lobes wiped off so for longterm reliability we can also remove the Heads and inspect the Camshaft plus install new Genuine GM LS7 Lifters, Head Gaskets and Head Bolts etc. Add $2650.00. Note : Additional Cost for replacement C4B Camshaft if the factory Camshaft is damaged.