Enough for you to wanna do it. Alot more then the stock engine.NightSwing17 said:Thats Spending more money on engines.How much potential is in those motors?ludesrv said:Find yourself a D16A1 out of a 86-89 Teg. I do beleive those are the only 'bolt in' engines. It's basically a weaker DOHC ZC (brown top) so you would upgrade the engine quite a bit over the stocker.