Acerni Custom Engineering

Varano de' Melegari, Italy View More Vehicles

2015 ULTRA4 4500 Modified – “Vera” LetzRoll Off-Road Racing custom built modified class

Vehicle Quick Facts

Profile ID: 9825
Year: 2015
Make: ULTRA4
Model: 4500 Modified
Markets: Off Road, Racing
Vehicle Type: American
Contact: Acerni Custom Engineering



Vehicle Story

ACE Racing is a multiple car offroad race team which has grown from the workshops of Pier Acerni at Acerni Custom Engineering in Northern Italy. Pier and his team mate Will Overton from the UK race in the USA and across Europe. Pier is the team boss and races in the 4400 Unlimited class whilst Will heads up the media and marketing for the team and races in the 4500 Modified class. Pier has many titles under his belt including ULTRA4 Europes King of the Valleys in successive years. This is "Vera" that Will and Pier raced at ULTRA4 USA's King of the Hammers Every Mans Challenge Modified Class in 2016, where they managed a very credible 7th in Class. The guys had the car for no more than one week before the race. This was a great result for the team. Vera is a 400HP LetzRoll Offroad (Phoenix AZ) 2015 ULTRA4 4500 Modified Class Racer.


LetzRoll Offroad Racing Modified Class Frame

Turnkey 390HP LQ9 V8

4L80E Tranny

Atlas 2:1 Transfer Case

Raceline Wheels

Yukon 35 spline Grizzly Lockers

Yukon Superjoints

Yukon 5.13 Ring & Pinions

Spidertrax 35 spline 4340 rear axleshafts

Pitbull Rocker Radial Tires 37"

ADS quad bypass shocks

ADS 14 " Remote resevoir 2.25" Coilovers

PAC Springs

Gigglepin GP84 Badboy twinmotor winch

Wiring by Shawn Hurst

Rugged Radio's comms and bluetooth intercoms

Odyssey Batteries PC1500 Batteries

Vision X Lighting

Pakelo Oils

Yukon 35 Spline spool

Goodwinch winch rope 12mm x 125'

Damar Webbing Strops

Factor 55 winch hook




Build Sheet


  • Yukon Gear & Axle - 3rd members, Ring and Pinion, Grizzly lockers, Yukon Superjoints.