Holden 355 stroker-powered 1973 HQ Monaro – TUFF Q

Mark Simmonite's 1973 Holden HQ Monaro

Photographers: Andrew Goodwin

This article on Mark’s HQ Monaro was first published in the February 2019 issue of Street Machine

“IN NOVEMBER 2017 my HQ Monaro was treated to a full bare-metal respray in Inca Gold. Since then, every rubber, seal and clip has been replaced, along with all the door internals.

The entire car has been rust-proofed under the paint, and the interior has been treated with Dynamat along with new underlay and carpet. All the badges have been replaced, the bumpers re-chromed, and the stainless trims repaired and re-polished.

The four-inch reverse-cowl bonnet covers a Holden 355 stroker, with a VN block and Yella Terra 5000-9 alloy heads. The T400 gearbox is rated to 1000hp, matched with a Dominator 4300 high-stall and a B&M Pro Ratchet shifter with a custom LED shift light.

The diff is a nine-inch, with 31-spline Strange axles and a Truetrac centre with 3.7 gears. Solid tubular adjustable trailing arms hold the diff in place. Bolted on to the VN disc brakes are a set of 15×5 and 15×8.5 satin-finish Center Lines.

I’d like to thank Joe Zirino for the engine build; Mick (Super Mario) and Baby Jesus from Briffa Engineering; Todd from Pro Street Polishing; Jake from Static Whitewalling; Phil & Gina from Extreme Panel & Paint; and Luke and Rory from AutoSpark Joondalup.”