google HQ Holden,Holden australia had a ton of GM USA in the body designs and shared a hell of a lot of the mechanicals,we used the chevy 307 and 327 small blocks then later on the 350,how could we go wrong with those?lotta suspension stuff and interiour bits like window winders etc,ive had this Holden for 35 years and drive it every day i just never bought another car!mine came factory with the aussie 253 cube v8 that got smokey so i rebuilt a 308 same block motor in 1992,still runs fine etc,id love to pull it and re ring etc?i sourced moog ball joints for this car through rock auto,we only get #$%*ty chinese stuff here!