Ever since the first car mags started dyno testing hot rod V-8s over a half century ago, there's always been a kernel of suspicion over the results. There's just too many questions about who stands to gain by good (or bad) results, whether the dyno is correctly calibrated, and how the results are interpreted. Even if claims of favoritism are unsubstantiated, there's still the fact that magazines frequently publish tests done months apart on dynos in different places. It creates an uneven playing field that we've lived with so long that we hardly question it anymore.

If this makes you beg the question, "Wouldn't it be a great idea to take some of the country's most powerful street engines built by the best engine builders and run them all on the same dyno at the same time?" Then we'd say: Sure as heck would! We'll even put all the results in one magazine. Popular Hot Rodding has been holding the annual AMSOIL Engine Masters Challenge for the last 11 years, and it's the only place where you'll find all kinds of domestic V-8 engines old and new being flogged side by side.

Keeping our playing field level is due in large part to our venue, the dyno facility at the University of Northwestern Ohio (UNOH), and to UNOH's pair of dedicated DTS/SuperFlow Powermark dynamometers. Over the course of four days, we fed 31 engines through UNOH's identically calibrated Powermarks, and painstakingly collected all the engine hardware specifics and dyno numbers for this story.

It wasn't, however, just a matter of flinging open the doors and letting in all comers. Our competitors were chosen based on the merits of their applications, variety, and prior performance. To make things more interesting, we created two classes: Street and Xtreme Street. Street class entries consisted of engines that have 300 ci or higher, 10.5:1 compression or lower, cast dual-plane intake, carb size limited to a single 4150-style carb (or fuel injection), any commercially available cylinder heads with intake ports compatible with the stock location, hydraulic roller cam, and a test range from 2,500 to 6,500 rpm. Street class engines run on VP Racing VP100 unleaded fuel. Xtreme Street is for more radical engines 400 ci and up with unlimited compression, race-style cylinder heads, multiple carburetion (or fuel injection), cast single-plane intake, solid roller cam, and a test range of 4,000-8,000 rpm. Xtreme Street engines run on VP Q16 fuel.

Whatever your favorite class or engine type, you'll find one or more engines that fulfill the street freak in you

Simply put, Street class engines are closer to what you'd find in most street-going muscle cars, and would run fine on normal unleaded pump fuel due to their compression ratio. Engines in the Street class are good candidates for cloning as they have great power right of the hit, and use a lot of readily available off-the-shelf parts-albeit with some love rubbing in many cases. Xtreme Street is for the guy who absolutely must have the baddest engine on the boulevard. Race gas? No problem. Rumpity idle? Bring it on. A bit more routine maintenance? Just another excuse to hang out in the garage.

You'll also be happy to know that out of this year's field of AMSOIL Engine Masters competitors, we selected nine of them to be featured in more detail in the coming months. Look for more on the School of Automotive Machinists' (SAM) SB2, Mike Phillips' Buick, Brad Wise's Oldsmobile, Bret Bowers' LS, the SKMFX Mopar Magnum small-block, Clark Hinkle's Mopar Wedge, Chris Henderson's small-block Chevy, Ray Clayton's Pontiac, and Todd Miller's Ford Boss Hemi. (Hint: If you're an engine lover, now's the time to drop that subscription card in the mail!)

Are you an engine builder who wants to be a part of the AMSOIL Engine Masters Challenge, but don't know how to get involved? We would really love to have you. We're always looking for new engines, new builders, and new ideas. We're looking for pros and amateurs alike, and we need all kinds of engines from basic old-school street-style small-blocks, to crazy high-tech monsters. We'll have all the specifics for the 2013 AMSOIL Engine Masters Challenge at PopularHotRodding.com, and our competition announcement in the Mar. '13 issue of PHR, so keep a sharp eye out. In the meantime, let the motorific mayhem begin!

Xtreme Street Division

Our 2012 Xtreme Street Winner
School of Automotive Machinists (SAM)

Houston, TX
402ci Chevy SB2

Qualifying score: 3,300.2
Team leader & members: Judson Massingill, Chris Bennett,
Shawn Hooper, Preston Mosher
Engine type: small-block SB2 Chevy
Claimed displacement: 402 ci
Block: Chevrolet Performance
Bore x stroke: 4.128 x 3.750
Compression ratio: 15:1
Compression height: 1.200 inches
Crankshaft: Lunati
Engine bearings: Clevite
Connecting rods: Lunati
Connecting rod bearings: Clevite
Pistons & rings: Diamond, Total Seal
Compression & second ring: 043, .0325 inch
Camshaft: COMP Cams
Cam duration at .050: 250/260 degrees
Valve lift: 880 inch
Head gasket: Fel-Pro, .041 inch
Cylinder heads: Chevrolet Performance SB2
Valves (In/Ex): Chevrolet Performance, 2.18/1.60 inches
Valve lifters: Jesel
Pushrods: Smith Bros.
Rocker arms: T&D Machine
Engine gasket set: Fel-Pro
Intake manifold: Chevrolet Performance
Carb: Book Racing billet
Carb spacer: HVH
Ignition system: MSD Performance
Spark plugs: Champion
Wires: MSD Performance
Fasteners: ARP
Flywheel: PRW
Engine damper: ATI
Water pump: Meziere
Headers: SAM custom
Valve covers: Mickey Williams
Hose & fittings: Aeroquip
AMSOIL oil viscosity: 5w20
Oil pump: Schumann
Oil pan: Mickey Williams
Mufflers: Flowmaster
Fuel: VP Fuels Q16

On The Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 671 404
4,200 555 444
4,400 567 475
4,600 600 526
4,800 624 570
5,000 638 608
5,200 648 642
5,400 650 669
5,600 653 696
5,800 659 728
6,000 664 758
6,200 664 784
6,400 660 804
6,600 651 818
6,800 641 830
7,000 634 846
7,200 622 853
7,400 604 850
7,600 584 846
7,800 564 838
8,000 546 831


Jon Kaase Racing Engines

Winder, GA
537ci Big-Block Chevy

Qualifying score: 3,277
Team leader & members: Jon Kaase, Chris Thomas
Engine type: big-block Chevy
Claimed displacement: 537 ci
Block: Dart
Bore x stroke: 4.620 x 4.00
Compression ratio: 14.5:1
Compression height: 1.8 inches
Crankshaft: Bryant Racing
Engine bearings: Clevite
Connecting rods: Carrillo, 6.000 inches
Connecting rod bearings: Clevite/Mahle
Pistons & rings: Diamond, Total Seal
Compression & second ring: .043, .043
Camshaft: COMP Cams
Cam duration at .050: 278/284 degrees
Cam duration, adv.: 308/314 degrees
Valve lift: 1.026 inches
Head Gasket: Fel-Pro, .042 inch
Cylinder heads brand: Reher Morrison/Raptor
Valves (In/Ex): Victory 1, 2.450/1.850 inches
Valve lifters: Jesel
Pushrods: Trend
Rocker arms: T&D Machine, 1.90 ratio
Engine gasket set: Fel-Pro
Intake manifold: Pro Filer
Carb: dual King Demon, 1,150 cfm
Carb spacer: Reher Morrison
Ignition system: MSD Performance
Spark plugs: Champion
Wires: MSD Performance
Fasteners: ARP
Flywheel: Ram
Engine damper: Innovators West
Water pump: Moroso
Headers: Hedman, 2.500-inch primary
Valve covers: Moroso
Hose & fittings: BMRS
AMSOIL oil viscosity: 5w20
Oil pump: Moroso
Oil pan: Moroso
Mufflers: Flowmaster
Fuel: VP Fuels Q16

On The Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 671 511
4,200 719 575
4,400 747 626
4,600 789 691
4,800 829 757
5,000 859 817
5,200 882 873
5,400 885 910
5,600 874 932
5,800 872 963
6,000 877 1,002
6,200 884 1,044
6,300 885 1,061
6,400 882 1,074
6,600 869 1,092
6,800 853 1,105
7,000 836 1,114
7,200 819 1,123
7,400 803 1,131
7,500 794 1,133
7,600 783 1,133
7,800 754 1,119
8,000 719 1,095


BES Racing Engines

Guilford, IN
465ci Big-Block Chevy

Qualifying score: 3,214.3
Team leader & members: Tony Bischoff, Brian Harrison,
John Lahone, Bradley Nagel
Engine type: big-block Chevy
Claimed displacement: 465 ci
Block: Dart
Bore x stroke: 4.200 x 4.193
Compression ratio: 15:1
Compression height: 1.095 inches
Crankshaft: Eagle
Engine bearings: Clevite
Connecting rods: Eagle, 6.125 inches
Connecting rod bearings: Clevite
Pistons & rings: Ross Racing, Total Seal
Compression & second ring: 043, .043 inch
Camshaft: COMP Cams
Cam duration at .050: 270/279 degrees
Valve lift: 1.080 inches
Head gasket: Fel-Pro, .040 inch
Cylinder heads: Pro Filer
Valves (In/Ex): Victory, 2.275/1.60 inches
Valve lifters: Jesel
Pushrods: Trend
Rocker arms: Jesel, 1.9 ratio
Engine gasket set: Fel-Pro
Intake manifold: Mast Motorsports
Carb: dual Holley 1,250 cfm
Carb spacer: BES Custom
Ignition system: ICE
Spark plugs: Champion
Wires: ICE
Fasteners: ARP
Flywheel: Ram
Engine damper: Innovators West
Water pump: Moroso
Headers: Schoenfeld
Valve covers: Mickey Williams
Hose & fittings: Earl's
AMSOIL oil viscosity: 5w20
Oil pump: Milodon
Oil pan: Stef's
Mufflers: Flowmaster
Fuel: VP Fuels Q16

On the Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 593 452
4,200 610 488
4,400 630 528
4,600 631 553
4,800 661 604
5,000 692 659
5,200 713 706
5,400 726 746
5,600 735 784
5,700 738 801
5,800 738 815
6,000 737 842
6,200 735 867
6,400 733 893
6,600 731 918
6,800 729 944
7,000 726 968
7,200 717 983
7,400 705 993
7,500 705 1,007
7,600 691 1,001
7,800 671 997
8,000 649 989


McKeown Motorsports Engineering (MME)

Waldorf, MD
444ci Ford Cleveland

Qualifying score: 3,087.1
Team leader & members: Mark McKeown, Kellen McKeown,
Samuel Hybner, Michael Kelly
Engine type: Ford Cleveland
Claimed displacement: 444 ci
Block: MME aluminum Cleveland
Bore x stroke: 4.200 x 4.000
Compression ratio: 15:1
Compression height: 1.160 inches
Crankshaft: Scat
Engine bearings: Clevite
Connecting rods: Eagle
Connecting rod bearings: Clevite
Pistons & rings: Ross Racing, Total Seal
Compression & second ring: .043, .043 inch
Camshaft: COMP Cams
Cam duration at .050: 267/277 degrees
Valve lift: 1.000 inch
Head gasket: Cometic, .040
Cylinder heads: Edelbrock Victor Glidden SC1
Valves (In/Ex): Victory, 2.226/1.600 inches
Valve lifters: G&S
Pushrods: Trend
Rocker arms: Jesel, 1.9/1.8 ratio
Engine gasket set: Cometic, Fel-Pro
Intake manifold: M&M Competition
Carb: dual Holley/Pro Systems 1,050 cfm
Carb spacer: MagnaFlow
Ignition system: MSD Performance
Spark plugs: Champion
Wires: MSD Performance
Fasteners: ARP
Flywheel: PRW
Engine damper: ATI
Water pump: Proform
Headers: custom MME/Stahl
Valve covers: Billet Fabrication
Hose & fittings: Fragola
AMSOIL oil viscosity: 5w20
Oil pump: Melling
Oil pan: MME
Mufflers: Flowmaster
Fuel: VP Fuels Q16

On the Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 512 390
4,200 517 414
4,400 552 462
4,600 575 504
4,800 596 545
5,000 620 590
5,200 645 639
5,400 670 688
5,600 690 735
5,800 692 765
6,000 687 785
6,200 684 807
6,400 683 832
6,600 697 863
6,800 684 886
7,000 677 902
7,200 667 915
7,400 655 923
7,500 643 930
7,600 636 932
7,800 625 929
8,000 605 921


KMF Racing Engines

Burns, TN
455ci Chevy SB2

Qualifying score: 3,066.7
Team leader & members: Kevin Fisher, Wesley Hendley, Jill Fisher
Engine type: small-block Chevy SB2
Claimed displacement: 455 ci
Block: World Products
Bore x stroke: 4.250 x 4.00
Compression ratio: 16.5:1
Compression height: 1.00 inch
Crankshaft: Eagle
Engine bearings: Clevite
Connecting rods: Eagle, 6.00 inches
Connecting rod bearings: Clevite
Pistons & rings: CP, Mahle
Compression & second ring: 043, 1.5mm
Camshaft: COMP Cams
Cam duration at .050: 263/268 degrees
Cam duration, adv.: 296/298 degrees
Valve lift: .930/.870 inch
Head gasket: Fel-Pro, .044 inch
Cylinder heads: Chevrolet SB2
Valves (In/Ex): Ferrea, 2.22/1.60 inches
Valve lifters: COMP Cams
Pushrods: Smith Bros.
Rocker arms: Jesel, 1.85/1.75 ratio
Engine gasket set: Fel-Pro
Intake manifold: Chevrolet SB2
Carb: Holley 1,250 cfm Dominator
Carb spacer: Holley
Ignition system: MSD Performance
Spark plugs: Champion
Wires: Scott Performance
Fasteners: ARP
Flywheel: Chevrolet
Engine damper: Pioneer
Water pump: ProForm
Headers: Day Enterprises, 1.890-inch primary
Valve covers: Chevrolet SB2
AMSOIL oil viscosity: 5w20
Oil pump: Procam
Oil pan: Day Enterprises
Mufflers: Flowmaster
Fuel: VP Fuels Q16

On The Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 577 440
4,200 583 466
4,400 593 497
4,600 617 541
4,800 643 587
5,000 658 627
5,200 671 664
5,400 678 697
5,600 681 726
5,800 680 751
6,000 681 778
6,200 686 810
6,400 688 839
6,600 687 863
6,800 680 881
7,000 669 892
7,200 655 898
7,400 643 907
7,600 629 910
7,800 613 911
8,000 590 899


Team Voldberg/Kaase

Winder, GA
532ci Ford Hemi Shotgun

Qualifying score: 3,052
Team leader & members: Shawn Voldberg, Jon Kaase,
Chris Thomas, Jamie Lien
Engine type: Ford Boss Shotgun
Claimed displacement: 532 ci
Block: C&C Motorsports
Bore x stroke: 4.601 x 4.00
Compression ratio: 12:1
Crankshaft: Bryant Racing
Engine bearings: Clevite, Mahle
Connecting rods: Bill Miller Engineering
Connecting rod bearings: Clevite
Pistons & rings: Diamond, Total Seal
Compression & second ring: .043, .032 inch
Camshaft: COMP Cams
Cam duration at .050: 279/284 degrees
Cam duration, adv.: 309/314 degrees
Valve lift: 1.026/.945 inch
Head gasket: Cometic, .042 inch
Cylinder heads: C&C Motorsports
Valves (In/Ex): Victory 1, 2.55/2.00 inches
Valve lifters: Jesel
Pushrods: Trend
Rocker arms: W.W. Engineering
Engine gasket set: Fel-Pro
Intake manifold: Trick Flow
Carb: dual Holley 1,150 cfm
Carb spacer: HRE
Ignition system: MSD Performance
Spark plugs: Champion
Wires: MSD Performance
Fasteners: ARP
Flywheel: PRW
Engine damper: Innovators West
Water pump: Meziere
Headers: Gebler, 2 3/8-inch primary
Valve covers: C&C Motorsports
Hose & fittings: BMRS
AMSOIL oil viscosity: 10w30
Oil pump: Kaase Racing Engines
Oil pan: Moroso
Mufflers: Flowmaster
Fuel: VP Racing Q16

On The Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 632 481
4,200 619 495
4,400 644 539
4,600 688 602
4,800 734 671
5,000 778 741
5,200 800 792
5,400 799 821
5,600 797 850
5,800 804 877
6,000 819 936
6,200 826 976
6,400 823 1,003
6,600 808 1,016
6,800 797 1,031
7,000 788 1,050
7,200 775 1,063
7,400 759 1,070
7,500 751 1,072
7,600 740 1,070
7,800 711 1,057
8,000 679 1,035


Racing Engine Design (RED)

Fort Collins, CO
447ci Chevy SB2

Qualifying score: 3,029
Team leader & members: Bret Bowers, Rick Marquez,
Luke Timmerman, Cole Wagner
Engine type: Chevy SB2
Claimed displacement: 447 ci
Block: Chevrolet Performance
Bore x stroke: 4.187 x 4.050
Compression ratio: 14.9:1
Compression height: 995 inch
Crankshaft: Callies
Engine bearings: Clevite, Engine Pro
Connecting rods: Lunati, 6.000 inches
Connecting rod bearings: Engine Pro
Pistons & rings: Ross Racing, Total Seal
Compression & second ring: .028, .028 inch
Camshaft: Bullet
Cam duration at .050: 265/274 degrees
Cam duration, adv.: 284/290 degrees
Valve lift: .874 inch
Head gasket: Fel-Pro, .041 inch
Cylinder heads: Chevrolet Performance
Valves (In/Ex): Xceldyne Technologies
Valve lifters: Jesel
Pushrods: COMP Cams
Rocker arms: Jesel
Engine gasket set: Fel-Pro
Intake manifold: M&M Competition
Carb: Holley 1,050 cfm
Carb spacer: custom RED
Ignition system: MSD Performance
Spark plugs: NGK
Wires: MSD Performance
Fasteners: ARP
Flywheel: PRW
Engine damper: Innovators West
Water pump: ProForm
Headers: custom RED
Valve covers: Jeff's Billet
Hose & fittings: Jegs
AMSOIL oil viscosity: 10w30
Oil pump: Melling
Oil pan: Jeff's Billet
Mufflers: Flowmaster
Fuel: VP Racing Q16

On The Dyno

Best Qualifying Pull
RPM: TQ: HP:
4,000 535 407
4,200 542 433
4,400 562 471
4,600 595 521
4,800 628 574
5,000 658 626
5,200 680 673
5,400 692 711
5,600 695 741
5,800 696 769
5,900 697 697
6,000 696 795
6,200 692 817
6,400 685 834
6,600 674 847
6,800 661 856
7,000 644 858
7,100 635 859
7,200 625 856
7,400 603 850
7,600 579 838
7,800 554 822
8,000 527 803