Tornado photos from the archives
POWERBOAT, June 1976
It's great to own a sharp looking SK boat but
it's heaven when you've built it yourself and it turned out like
this.
The hull was constructed from African Mahogany plywood
and Honduras Mahogany. Upon completion, the sides and bottom were covered with
one layer of 8 ounce fiberglass.
In certain parts of the United States, weather permits year round boating
pleasure. However, in those areas where snow and ice prevail for a good portion
of winter, devoted power boaters move their thoughts and activities indoors.
What better time for an enthusiastic do-it-yourselfer to tackle that long
awaited dream. ..building his own power boat.
This is exactly what Dennis Goodenough of Janesville, Wisconsin did. His
finished product, displayed on these two pages, is proof positive that a
sensational ski boat can be built successfully from a set of hull kit plans.
Not only do you have the fun and adventure of building your own boat, but
you'll likely save a little money along the way plus having the freedom to
make modifications to the design as you see fit.
Dennis purchased hull construction plans from Glen-L, a leader in
do-it-yourself boat kits with a limitless number of plans to choose from in
their catalogue. The entire project consumed nearly five years of sporatic
spare time effort to complete including the trailer. Dennis places his total
construction costs for the finished rig at $6,000.
The hull is a typical SK type, 18'6" in length, built of African
Mahogany plywood and solid Honduras Mahogany. The bottom is 1/2 inch ply with
3/8 inch sides. Both bottom and sides are covered with one layer of 8 ounce
fiberglass. The hull is painted with dark emerald green and white acrylic
enamel and the natural wood deck stained cherry and varnished.
The engine is a basic 350 cubic inch LT-1 Chevrolet. Dennis added a set of
202 straight plug cylinder heads, a thirteen quart Dan Olsen oil pan, an
Edelbrock STR-10 cross ram intake manifold and two 600 cfm Holley carbs plus
Gil Marine over-the-transom headers. The small block engine must be putting out
some power since it swings a 12 X 15 bronze three blade prop at better than
5000 RPM with a 15% overdrive Casale v-drive. Dennis credits Powerboat with
supplying him the information needed to draw up plans to build his own trailer
after studying pictures that appeared in ads and editorials in the magazine.
The actual steel fabrication was handled by a local welder in his hometown.
Dennis states that this first attempt at boat building was both rewarding
and satisfying but not without its moments of frustrations. Still when Dennis
powers off, out across his favorite lake during the summer, those bleak winter
months are long forgotten.
44/POWERBOAT
Dennis started the five year project with a basic
Glen-L kit. Along the way he made a few personal preference changes in the
design. The trailer is also homemade.
The engine began life as a Chevy LT-1, 350 c.i.
factory replacment short block. A whole host of extras were added to make it a
powerful and dependable ski engine.
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Almost as much fun as building it. Dennis takes his
creation out for a summer spin.
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OWNER
Name: Dennis Goodenough
Hometown: Janesville, Wisconsin
Years in boating: Eight
HULL
Make: Homemade
Plans: Glen-L
Length: 18' 6"
Beam: 87"
Freeboard: 24"
Weight: 700 pounds (bare)
ENGINE
Make: Chevrolet
Model: LT-1
Builder: Dennis Goodenough - Jerry Dorsey
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Cubic Inches: 350
Rods: Chevrolet
Pistons: Chevrolet
Heads: 202 Chevrolet (straigh plug)
Intake manifold: Edlebrock STR-10 cross ram
Carburetor: Holley 600 cfm (2)
Ignition: Joe Hunt Vertex Magneto
Oil Pan: Dan Olsen
Oil Pump: TRW high output
Exhaust: Gil Marine over-the-transom
MISCELLANEOUS
V-drive: Casale (15% overdrive)
Interior: Gene Arner
Paint: Jack Boughton
Trailer: John Johnson
Information and assistance: Vic Hubbard Speed & Marine
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JUNE 1976/45
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