The 451 low deck was deadly consistent and very durable. I think if I had replaced valve springs on it after ten years it may still be running?
It was a pump gas 11:1 compression build with a mild solid roller 251/251 @50, 0.620"/6.20" cam and brodix B1 B/S heads. I would estimate the engine may have made close to 580 HP at the crank? Chassis Dyno was only 452 HP at the rear tires?
Bottom end was just ARP studs and 1/2" pickup with larger oil pan.
4,150# '71 Charger with near stock suspension (bad 60' times), 3,500 stall 10" converter (launched at 1200-1500 RPM, any more the sires would smoke off the line), 3.91 gear, and 10x27" MT street ET radials. At Bandimere, 12.50@110 (consistent) usually only varied 0.02 either way? Consistency may have been because I had no air scoop, so the air was more consistent temp coming through the radiator? Took the car to MATS, and ran 11.8's @ 115 off the trailer with no tuning changes.

I hope the new 500" 4.15" stroke, low deck works as well, but with 100+ more HP. 557 rear wheel HP on the chassis dyno. I went with the BCR caps and girdle on this engine. max wedge victor heads, and flat tops give me 12.4:1 compression.
This engine uses an agressive solid roller cam (Comp HXL Lobes), 264/264 @ 0.050", 0.714"/0.714" lift. Indy 400 single plane for my old 4150 style Holley 1,000 cfm carb. I'm sure there is more in the engine if I used a larger cam, and intake/carb, but it looks like my shift points will be close to 7,000 RPM as it stands.
Right now this is more engine than my car is set-up for. I'm looking at getting a roll bar, dana60 spooled axle, and a new driveshaft.