The rest of the driveline consists of a DTM Automatics TH400 with Gear Vendors under/overdrive, and the rear end is basically just standard IRS with 3.73 diff gears and a full spool.
On the dyno it made around 670rwhp on 98-octane pump fuel. With the latest rebuild, Tim has moved to a set of new Higgins cylinder heads to improve the engine’s efficiency. Keen readers will know that Tim previously had a white VZ with similar running gear, albeit with a stock-bottom-end 6.0-litre, and just before Street Machine Drag Challenge 2016 he put this ute together with the upgraded engine. The kit retains use of the factory handbrake. The adaptor brackets are manufactured from billet 6061-T6 aircraft-grade aluminium and are heat treated and anodized black to guarantee durability. Running CP Bullet pistons, Compstar rods, a factory crank, and a blower cam from Bob Beam’s Brute Speed, the 6.0-litre drives an F1A ProCharger running 15psi. The kit is very straight-forward and easy to install by anyone familiar with brake systems and can be installed with basic hand tools in under 3 hours. But before Timmy could get to Heathcote for the Holden Nats, he had to thrash to get the ute back together after he pulled the 6.0-litre LS out for a freshen-up after 20,000km of street and track abuse. His goal for the Holden Nationals a couple of weeks ago was to still run nines, but this time exactly as the car drives on the street – 17-inch alloys, headlights in and air filter on. Yep, Timmy’s ute has run mid-nines at over 140mph, though that was in what Tim calls ‘race trim’ – headlights removed, steelies with big sidewall tyres and no air filter.
TIM Bailey’s Holden VZ ute is genuinely daily-driven, and that’s not something you can often say about a car that runs nine-second quarter-miles.
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