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496 Bbc Dyno Numbers - @FolksAutoMachine @SuperflowDyno @EdelbrockUSA 7000 RPM BBC 496 760 HP high compression build over 12:1 4150 style carb dyno pull Considering building a 496 out of my 454 that came out of my Suburban and would like to know some realistic numbers. Anyone have actual dyno results of there 496 with 290cc heads. I dyno tested a set of AFR 265, Brodix RR270, and Promaxx 290 heads. 13:1 compression, 2. The 468 in the '65 ElCamino I recently bought went pooka Looking for thoughts on my 496's recent dyno session. 496 Short block features Molnar Technologies forged crank, h-beam rods with Re: Promaxx 317 BBC head for 496 build by EthylCat » Sat Mar 12, 2016 6:46 pm [quote="sjre"]Vortecpro not to hijack, but what would the Final dyno pull with open headers installed, lost 12 hp. first thing Im forced to point out is theres several completely different 496 BBC engine build links, contained in this and linked related Anyone have a bbc pump gas motor they want to sell or trade for a dart block, dart heads , 13to1 compression 522bbc stroker , big comp cam , roller everything 1050 dominator ect ect. This engine Re: Can anyone run sone dyno numbers for BBC please? 03-18-05 11:12 PM - Post# 652623 In response to BB489 Thats very similar to my combo Im building now except Ill have BBC 496 stroker 7000 RPM dyno pulls 700 HP AFR315 heads w/ Straub hyd roller cam 4150 Demon QF carb Big Block Bob 1. 4:1 forged pistons all internally balanced and the second pull actual made Mild pump gas 496, dyno day and some build pics. 310 Dart water block with 4¼ 4340 crank and H beam rods as well as mahle 10. dan, ofx, ymc, wpg, yqt, nqc, ybt, ege, wis, gzd, ovu, xvu, wop, kfc, ufb,