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GM 385 HP Fast Burn Longblock, anyone here with it/dyno#'s, info,Cobrasnake302 11-24-2002, 01:43 PM Hi, A friend of mine is thinking of buying a GM 385 hp fast burn long block and I'm looking for anyone with experience/info on this motor such as dyno proven horespower, performance, or anything you could tell me about it. Erik 11-25-2002, 07:32 PM A friend of mine has one, with the H.O.T. cam and roller rockers. In his '79 4 door cutlass he runs 12.9x - 13.0x @ 107mph on street tires with a 2.0x 60'. 3.42:1 gears, TH350 tranny, Holley 650, MSD ignition and wires. It weighs ~3200lbs with the driver. The track is about a dozen feet above sea-level and the temperature during racing season is usually around 20 degrees, give or take. (celcius) He made one run with a 150 shot of nitrous, spraying just second and third gear, with the juice cutting out at around 1000 feet and ran a 12.1 at 112. :cool: blue 79 Z/28 11-26-2002, 07:23 PM yea, ill second on that one. i was there to see it run many a time! good ol' duane:cool: upgradedsupra 09-01-2003, 03:35 AM Erik! That was 119.26 for the MPH ;) with the Nitrous kicking in in second gear New time for the motor! 12.6@110 on street tires. 225x60x15 Goodyears :p Duane 4 door sleeper OH! 3350 lbs with me in it. kacy 09-01-2003, 11:58 AM super chevy took one put in a hot cam and accel dfi and dynoed 524 fwhp upgradedsupra 09-01-2003, 01:27 PM With the same motor? This only advertised with 430 CRANK and 340-345 WHP Duane NeverGonnaRun 09-01-2003, 08:15 PM Um... I think that was a 383 they did that with. The 385 hp long block this guy is asking about is a 350. They did that with GM's 383 shortblock. They had ported Fast Burn heads, and a roller cam with something along the lines of 230/234 duration @ .050 and .520/.530 lift or something like that. That's not exact, but it's close. And yes, it made 530 hp. When you put "fwhp" at first I thought "front wheel horsepower," but then realized it was flywheel. Just say "hp" and everyone pretty much knows it's flywheel. "rwhp" is rear wheel, and "fwhp" is front wheel. Or maybe it's just me, and I know too many people with imports... upgradedsupra 09-01-2003, 08:28 PM I agree with the hp thing. ;) The fast burn is not a 383 which would be why the hp is higher. Mine is 430 crank but Iwill know when I dyno it next week with my buddy on here. AKA Erik AKA Moderator with a '80 Camaro. He just put his in. | ||