283 engine: The first engine we built for the HOT ROD project was originally a 283 cubic inch Chevrole
The first engine we built for the HOT ROD project was originally a 283 cubic inch Chevrolet marine unit salvaged from a 1968 Chris Craft cruiser. It has since been upgraded to a more potent 355 CID V8.
2. The Chris-Craft engine was oufitted with a Paragon 2:1 reduction transmission, a gear driven camshaft and a large capacity cast iron oil pan.
5. Certainly not the lightest engine package to power our boat, so we tore the engine down and replaced most of the parts with beefier and lighter performance parts.
6. The engine was hot-tanked, magnafluxed to check for cracks and bored out.060". Brass freeze plugs, block petcock drain valves and a set of flat top pistons were also installed. The crankshaft, rods and cylinder heads were also reconditionned.
283 engine: The engine mounts, brackets and pulleys were sandblasted, primed with DuPont 2580CR uretha
1. The engine mounts, brackets and pulleys were sandblasted, primed with DuPont 2580CR urethane primer and topcoated with DuPont Imron urethane enamel.
Frame clips were fabricated from 1-1/2" angle iron
1–2. Frame clips were fabricated from 1-1/2" angle iron. The floor timbers were bolted to the frames which were in turn bolted to the motor stringers.
3. To ensure assembly accuracy, the transom pieces will be overlaid on the transom template.
4. All pieces ready for lamination.
5–6. Filling the screw holes.
7–8. Drilling holes for the transom brackets.
9. Transom brackets were fabricated from 1/8" flat stock.
10. Bracket top was flared to allow the installation of two bolts instead of one.
11–12. Three coats of epoxy complete the transom.
13. Transom bracket painted and installed. Prior to installation, the brackets and frame clips were sandblasted, primed with DuPont 2580CR self-etching urethane primer, base-coated with Imron Urethane white and topcoated with Imron Urethane metallic silver.
283 engine: Power upgrades include a mild marine hydraulic camshaft and lifter kit, a Crane Powermax H
The engine was installed in the fullsize mockup. Motor mounts were fabricated, the wiring system was completed and an automotive cooling system was hooked up so we could fire up the engine. The intent is to break in the motor before it's installed in the finished boat. A cam driven water pump and marine exhaust will be swapped in at a later date.
Power upgrades include a mild marine hydraulic camshaft and lifter kit, a Crane Powermax H-266-2. Cam specs are as follows: - Advertised duration (Intake/Exhaust): 266/272 degrees - Duration at.050" lift (Intake/Exhaust): 210/266 degrees - Valve lift:.440"/.454" - Lobe centerline: 112 degrees The original Carter 3660 four barrel carburetor was rebuilt. To save weight and increase performance, the stock cast iron intake manifold was replaced with a much lighter and better flowing Edelbrock Performer intake manifold. The compact Velvet Drive bellhousing requires the installation of a 12-3/4" 153 tooth flywheel and a marine starter to match the smaller diameter flywheel. The original Chris-Craft motor mounts were retained.
1. Transom bracket painted and installed. Prior to installation, the brackets and frame clips were sandblasted, primed with DuPont 2580CR self-etching urethane primer, base-coated with Imron Urethane white and topcoated with Imron Urethane metallic silver.
2. Fitting the sheer clamps to the breasthook. The breasthook was bulit up using two pieces of 1" x 3" mahogany stock and 3/4" marine plywood. The strips will provide a stable landing for the sheer clamp screws.
12
Nobody else here is logging a Hot Rod yet.
See the boat.
