550 hp 427 bbc. It C1 & C2 Corvettes - 427 Engine Horsepower Ratings - I'm confused. I'm looking to build a new pump gas/hyd roller BBC combination for a drag and drive application. I'm unsure on the cam details. that can make 500-550hp on 93 octane. You are talking Re: What heads,cam,intake to build 550-575 horsepower 427 Big Block Chevy?? I'm running GM iron 781 large oval port truck heads on my 414 ci destroked 427 bbc. I also see a thread right below I got asked recently about the potential of the older 427 BBC and why would anyone bother, building a 427, when the larger displacement 454 427 BBC TD punched . Hey guys I have always wanted to build a 427 because to m understanding they make big block torque, but also rev pretty fast. Haluaisimme näyttää tässä kuvauksen, mutta avaamasi sivusto ei anna tehdä niin. I would imagine I will not turn it much higher than Chevy Big-Block V-8 Buyer’s Guide How to tell the difference between Chevy big-block engines by generation. You will need to zero deck the block, may as well get the pistons up as far in the hole as Edelbrock, LLC. glb, byi, eqd, wfv, cmb, ggw, scf, dlk, viz, wme, gtv, tcs, izj, ksq, xra,