“Root Special” DOHC 4-Cylinder Racing Engine
Craftsman: Lee Root
Knapp Collection #: 104
Catalog #: 2009.9.17
Contributor: Paul Knapp
The “Root Special” is machined entirely from 7075 aluminum bar stock and utilizes no castings. The aluminum parts were clear anodized to produce the color and finish.
1/3 Scale Miller Flathead Ford V8 (In Progress)
Craftsman: Ed Miller
Knapp Collection #: 481
Catalog #: 2016.8.33
Contributor: Paul Knapp
Ed Miller’s rendition of the early Ford V8 flathead has a bore of 1″, stroke of 1.25″, and will burn methanol on spark ignition.
1/4 Scale 3D-Printed Chevy Racing Engine
Craftsman: William "Bill" Gould
Catalog #: 2013.52.2
Donor: William Gould
This 1/4 scale model of a Chevrolet racing engine is an example of 3D printing. Note that details as fine as the ignition wires and linkages have been reproduced.
1/4 Scale Ferrari V-12 Engine
Craftsman: Bennie Vreeman
Knapp Collection #: 219
Catalog #: 2009.9.29
Contributor: Paul Knapp
This 1/4 scale Ferrari V-12 model auto engine is 12”-long, 8”-wide, and 6”-high. It has a bore of 1.160″ and a stroke of only .580″, yielding a total displacement of .609 cubic inches.
1/4 Scale Ford Model A Engine
Craftsman: Lee Root
Knapp Collection #: 103
Catalog #: 2009.9.16
Contributor: Paul Knapp
Lee Root produced this 1/4 scale replica of the 4-cylinder, water-cooled engine used in the famous Ford Model A automobile.
1/4 Scale OFFY 270 Engine With Fuel Injection
Craftsman: Ron Bement
Knapp Collection #: 497
Catalog #: 2016.44.8
Contributor: Paul Knapp
This 1/4 scale “OFFY” 270 engine burns gasoline on spark ignition, sports a pressurized fuel system, has dry sump lubrication, and an aluminum radiator.
1/4 Scale Small Block Chevy V-8 Engine
Craftsman: Lee Root
Knapp Collection #: 102
Catalog #: 2009.9.15
Contributor: Paul Knapp
Lee Root machined 7075 aircraft grade aluminum to produce the crankcase, heads, rods and pistons for this Chevy Corvette small block V-8.
4-Port Riley Model A Racing Engine
Craftsman: Ron Bement
Knapp Collection #: 498
Catalog #: 2016.44.9
Contributor: Paul Knapp
This 4-port Riley Model A racing engine OHV conversion measures 14″-wide, 13″-tall, 18.5″-long, and weighs 25 pounds.
ARDUN V8 Flathead Ford Engine
Craftsman: Ron Bement
Knapp Collection #: 499
Catalog #: 2016.44.10
Contributor: Paul Knapp
This ARDUN V8 flathead Ford engine OHV conversion supports two water pumps, has a high efficiency aluminum radiator, and features a custom designed fuel injection system.
Bosh Water-Cooled Inline 4-Cylinder Engine
Craftsman: Bob Shores
Knapp Collection #: 440
Catalog #: 2016.8.23
Contributor: Paul Knapp
The Bosh is water-cooled 4-cylinder 40cc inline auto engine designed to burn gasoline on spark ignition.
Brodbeck Side Port .60 Tether Car Engines
Craftsman: John Brodbeck
Knapp Collection #: 638, 639, 640
Catalog #: 2021.9.1
Contributor: Paul Knapp
These Brodbeck side port .60 tether car engines are presumed to have been built by John Brodbeck in the mid-1940s.
Challenger Flathead V8
Craftsman: Ron Bement
Knapp Collection #: 496
Catalog #: 2016.44.7
Contributor: Paul Knapp
This Challenger flathead V8 was custom built by Ron Bement. Ron’s version includes several innovations and modifications not found in conventional Challenger engines.
Challenger Flathead V8
Craftsman: Dick Pretel
Knapp Collection #: 589
Catalog #: 2019.11.2
Contributor: Paul Knapp
The only part of this engine typical of the Challenger V8 is the crankcase; everything else was machined from 7075 aluminum, steel, and stainless steel bar stock.
Challenger Flathead V8
Craftsman: Ed Miller, Mike Gombert
Knapp Collection #: 593
Catalog #: 2019.11.6
Contributor: Paul Knapp
This Challenger flathead V8 engine was built by Ed Miller (WY) and Mike Gombert (CO). Typical of Ed’s engines, this Challenger is designed to burn methanol on spark ignition.
Challenger V8 Prototype Engine
Craftsman: Bachtold, Thoms, and Dettrick
Knapp Collection #: 08
Catalog #: 2011.27.1
Contributor: Paul Knapp
This Challenger V8 prototype engine is 12″-long, 12″-wide, 14″-high, and weighs 25 lbs. The engine was finished in the mid-1960s.
Conley “427” V8
Craftsman: Gary Conley
Knapp Collection #: 315
Catalog #: 2011.35.10
Contributor: Paul Knapp
In 1988-89, Gary Conley fabricated the molds and patterns to produce a casting kit for this 4.27 cubic inch V8 and made it available in several variations.
COSWORTH DFV 1/3 Scale Formula 1 V8 Engine
Craftsman: Marcel Bouland
Knapp Collection #: 611
Catalog #: 2019.33.8
Contributor: Paul Knapp
This COSWORTH DFV 1/3 scale Formula 1 V8 engine has a bore of 1-inch and a stroke of .826-inch for a total capacity of 4.64 cubic inches.
Duesenberg Tether Car and Engine
Craftsman: Wayne Short
Knapp Collection #: 425
Catalog #: 2016.8.18
Contributor: Paul Knapp
This Duesenberg tether car and engine is about 10″-wide, 8″-high, and 21″-long. It sports a faithful reproduction of the Duesenberg .60 cubic inch engine.
Ford Model A 4-Cylinder Engine
Craftsman: Profi M. E.
Knapp Collection #: 94
Catalog #: 2009.9.12
Contributor: Paul Knapp
This 1/5 scale replica of the 4-cycle, water-cooled engine in the famous Ford Model A of 1928 has a bore of .675″ and a stroke of .827″.
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