1979 Caribbean Blown Big Block Chevy Jet Boat

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1979 Caribbean Blown Big Block Chevy Jet Boat

1979 Caribbean Blown Big Block Chevy Jet Boat
1979 Caribbean Jet Boat w/ Trailer
Asking $50,000 obo LOWER $ 35.000

No Expenses Spared on this Build

Have about 3 hours on the Boat/Engine.
Never been beached and hand loaded off / on trailer

498ci Blown Big Block Chevy
913.5HP @ 6500rpm (still gaining 6hp / 100rpm) stopped at 6500rpm on the dyno
831.8 ft.lbs @ 4600rpm

Have always run LAT Racing Oil Semi-Synthetic 20W-50 (except during Dyno Runs where we were running LAT Racing Oil Break-In Oil)
Runs on VP110 for margin, should be safe with ~102 octane fuel without pulley change

Boat Info
18’6” V-bottom Hull w/ ¼ Stringer
Delta Bottom
Bottom design is similar to Biesemeyer / Roger TR “Semi-Tunnel”
Boat has been capped and custom painted by So-Cal Rides
paint on top/sides, Gel on bottom
Custom Designed Gunnel Supports by King’s Ransom Design & Fab
Custom Upholstered Fiberglass Seats
Custom Carpet up to front of boat
Oil/Fuel Resistant Epoxy Paint in Bilge area (Black) and Outside Stringers (Grey)
Custom Upholstered Console with billet v-drive handle
RBZ Billet Steering Wheel w/Diverter Controls
Have taken the boat to 90mph (about 1/8 mile) and is very stable

Engine Details
4-Bolt Main GM Hi-Performance Block
Manley Pro Series 4.25″ Crankshaft (w/ Center Counterweight)
Custom Ross Pistons
Manley 6.385″ H-Beam Connecting Rods
Custom Billet Comp Camshaft (w/ 4/7 Swap)
Isky Solid Roller Lifters
Clevite Main / Rod Bearings
ATI Super Damper Supercharged Series 7″ Balancer
Cometic Head Gaskets
TBS 8-71 Hi-Helix Billet Blower
TBS Intake
TBS Blower Drive Kit
TBS Intercooler
TBS Dual Carb Fuel Line Kit
TBS Linkage Kit
TBS 48 Tooth Top / 50 Tooth Bottom Pully Sizes (4% Over)
Billet American Flag Blower Guard
Cloyes Timing Chain / Cover
Wilson Manifolds Billet Carb Spacers
Mellings Oil Pump
Dan Olsen Trap Door 12-quart Jet Boat Oil Pan
Dual 850cfm Holley Track Warrior Carburetors
Custom Winchester Metalworks Valve Covers
2-3/8″ Zoomie Headers built by King’s Ransom Design & Fab w/ Hi-Heat Powdercoating
Powermaster 55Amp Mini Alternator
MSD Distributor (Locked out)
MSD 6M-2L ignition box

Block Machine Work done by QMP in Chatsworth
Align-Honed
Piston Ring Gap Set
Diamond Honed Cylinders
Clevite Cam Bearings Installed
Notch Block for Stroker Clearance
Deck Block
Machine Crank for 1/4 Blower Keyway
Balance Crank, Rods & Pistons
Wash Block

Dart Pro1 Aluminum 310cc Rectangular Port Cylinder Heads
Head Machine work and setup done by QMP in Chatsworth
Precision Mill Cylinder Heads
New Bronze Valve Guides
Competition Valve Job
Set Spring Tension & Assemble Heads
Comp Cams Valve Springs
Manley Severe Duty 2.25″ Intake Valves
Manley Extreme Duty XH-432 XtremeAlloy (Inconel) 1.88″ Exhaust Valves
Dart Stud Girdles
Comp Cams Ultra Pro Magnum Rocker Arms

Custom Jacuzzi Jet built by Tom @ Jet Boat Performance (JBP)
Intake removed and machined for Shoe
Custom Shoe
Ride Plate
Steel Loader
JBP XLeratorMix-Flo Bowl Conversion
AA Stainless Impeller
Hardened Shaft
JBP Mini-Droop
Hydraulic Place Diverter
Custom Ride Plate Brackets built by King’s Ransom Design & Fab
Custom Designed Pump Brace by King’s Ransom Design & Fab

Water System
All PTFE Braided Water Lines
Billet AN Ball Valves to adjust water temperature
Pressure Regulated to maintain minimal pressure in the block
Bilge Pump

Fuel System
IMCO Stainless Fuel Tanks w/ Billet Caps
Holley 170gph Mechanical Fuel Pump
Holley HP Billet Fuel Pressure Regulator
All PTFE Braided Fuel Lines
Pre and Post Fuel Pump AN Billet Fuel Filters w/ replaceable element

Electrical System
Odyssey Battery
Billet Aluminum Battery Tray and Mounting Bracket
Auto Meter Ultra Pro-Comp Gauges including GPS Speedo
Mercury Racing Kill Switch w/Lanyard

Trailer Info
Trail-Rite Trailer
Dual Axle
Stainless Fenders
Upholstered Inner Fender Wells
Fully restored & Powdercoated
LED Tail Lights

All Powdercoating done by Extreme Powdercoating in Hesperia, CA
Have Dyno Sheets available
Cam specs will be available to buyer

Welcome to come see it. To protect the pump, engine will only be started on the water on trailer. Will not be started on a garden hose as this does not give the wear ring the proper water supply.
call or email chevelleracer@gmail.com
9093670468


Price $35,000
Located in California
Owner Name Mike Agnew
Phone Number 9093670468
Category

ToolBox
  • October 5, 2025 9:40 am
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