I have someone that wants me to put an LS based engine in my Camaro and I said "WHY?", so I looked up the head flow of the 5.3's and I am not impressed as most of the 5.3 heads only flow slightly better than a 062 Vortec 350 head. So, I will waste a ton of money to put in something that is better than my SB engines? ya right. So far the best head I see are the 243 LS6 castings and the 6.0 castings. I was in the low 11's with my 358 that had Sportsman II heads on it and in good air would be capable of running low 11's. Gee, I guess I should build a dumb turbo 5.3 that you have to have a .600 reaction time just to get it off the line and then hope it does not blow the tires off. No thanks.
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