The OFFSHORE 383
383cid, 390HP @5100rpm
431 lb,ft torque @4500
Operating range WOT 4700-5100rpm
383cid, 390HP @5100rpm
431 lb,ft torque @4500
Operating range WOT 4700-5100rpm
| The Benefits of our Offshore 383ci. over a 350ci. "More Torque" 1) More torque = faster planing time 2) Higher cruise speed. In the 3200-3800rpm cruise range, your boat will have a higher cruise speed, due to the fact you will be running a higher pitch prop. More pitch/same rpm = more speed. 3) Higher top speed. 4) More pulling power for skiers or heavily loaded boats. Torque is what is important in a marine engine, NOT horse power. You want more TQ. than HP. A 200hp boat with 400ft. lb. of TQ. will be faster & more efficient than the same boat with 500hp and only 350ft. lb. of TQ.!! |
Boat Store Online.com
Home
Email us
1-888-426-2841
| The Benefits of our "OFFSHORE 420" over any 350ci. - 454ci. "More Torque" 1) More torque = faster planing time 2) More torque = Higher cruise speed. In the same cruise rpm range you were before, your boat will have a higher cruise speed. Due to the fact you will be running a higher pitch prop at the same RPM. More pitch/same rpm = more speed. 3) More torque/HP and less weigh = Higher top speed. 4) More torque = More pulling power for skiers or heavy loads . 5) Through the extensive use of high strength, light weight alloys, these engines weigh only 547lbs! ( 200lbs lighter than most other small blocks, 350-500lbs less than most big blocks) 6) Each engine, Hand built to "exacting" tolerances, for years of trouble free service. All engines come with certified, serial numbered dyno sheets. |
These light weight powerful Blueprinted engines are designed for sport boats, runabouts,
ski boats, cruisers,or sportfish that desire more in the performance department, but may not
have the room to handle a big-block's larger size or weight. Smaller and lighter than
displacement big blocks and most small blocks, the OFFSHORE 420 actually provides
comparable performance to the 496 Mag , their compact size and high power-to-weight ratio
make them an extremely versatile engine.
The low maintenance Offshore 420 is the power of choice.
* Estimated prop shaft HP w/free flowing exhaust, 390hp. Carb.
Although these engines are a few ft-lbs of torque less than a 496 (+/-20lbs), they more than make up for it with their
lighter weight, and higher horse power!
Specifications may change with out notice, due to constant testing and improvements being made.
.
These engines require no more maintenance than any other marine engine.
(oil change every 50 hrs, full tune up 500hrs)
ski boats, cruisers,or sportfish that desire more in the performance department, but may not
have the room to handle a big-block's larger size or weight. Smaller and lighter than
displacement big blocks and most small blocks, the OFFSHORE 420 actually provides
comparable performance to the 496 Mag , their compact size and high power-to-weight ratio
make them an extremely versatile engine.
The low maintenance Offshore 420 is the power of choice.
* Estimated prop shaft HP w/free flowing exhaust, 390hp. Carb.
Although these engines are a few ft-lbs of torque less than a 496 (+/-20lbs), they more than make up for it with their
lighter weight, and higher horse power!
Specifications may change with out notice, due to constant testing and improvements being made.
.
These engines require no more maintenance than any other marine engine.
(oil change every 50 hrs, full tune up 500hrs)
OFFSHORE 420
We carry and build, 383 marine engine,rebuilt
boat engines, new boat engines, marine diesel
engines,,mercruiser 383,mercruiser engines.
We also carry crusader marine engines.383
marine engine,rebuilt boat engines, new boat
engines, marine diesel engines,mercruiser 496
mag ho engines,377 ci marine engines.
Mercruiser 383
boat engines, new boat engines, marine diesel
engines,,mercruiser 383,mercruiser engines.
We also carry crusader marine engines.383
marine engine,rebuilt boat engines, new boat
engines, marine diesel engines,mercruiser 496
mag ho engines,377 ci marine engines.
Mercruiser 383
 |
383 marine engine,rebuilt boat engines,mercruiser 383, new boat
engines, marine diesel engines,mercruiser 6.2L 377 ci marine
engine,mercruiser 383 engines. marine 383,performance marine
engines
383 marine engine,rebuilt boat engines,mercruiser 383, new boat
engines,mercruiser 6.2L, marine performance engines,mercruiser
engines,crusader engines,496 mag,mercruiser 496 mag,496 HO.
More power than any mercruiser 383.our 377 6.2L Will run circles
around a mercruiser 383. Forget the mercruiser 383! The rebuilt
mercruiser marine 383,performance marine engines marine
383,performance marine engines marine 383,performance marine
engine mercruiser 383 is just that mercruiser rebuilt 383,
"REBUILT"! marine 383,performance marine engines
engines, marine diesel engines,mercruiser 6.2L 377 ci marine
engine,mercruiser 383 engines. marine 383,performance marine
engines
383 marine engine,rebuilt boat engines,mercruiser 383, new boat
engines,mercruiser 6.2L, marine performance engines,mercruiser
engines,crusader engines,496 mag,mercruiser 496 mag,496 HO.
More power than any mercruiser 383.our 377 6.2L Will run circles
around a mercruiser 383. Forget the mercruiser 383! The rebuilt
mercruiser marine 383,performance marine engines marine
383,performance marine engines marine 383,performance marine
engine mercruiser 383 is just that mercruiser rebuilt 383,
"REBUILT"! marine 383,performance marine engines
2 Year limited warranty
New GM performance stroker block (ZZ4 4 bolt main)
New forged steel crank (one piece rear main)
New Bushed forged steel rods
New forged pistons (9.2:1 floating pin)
New Custom grind HYD. Roller cam Vmax lifters
New AFR ELIMINATOR 195 heads 2.02 int. 1.60ex.
(inconel exhaust valves)
New Manley push rods
New Performer air gap intake. (carb. model)
New 750 cfm Marine Carb. (or 1000 cfm MPI option)
New marine elec. fuel pump
New flywheel and damper (14"with double bolt pattern)
New Stainless steel roller rockers
New Stainless steel fasteners
New custom engine cowling
New Delco EST Marine HEI. System (rev.limit 5500)
New engine hour meter
New accusync system for twin engines (inboard)
New oil coolers
New forged steel crank (one piece rear main)
New Bushed forged steel rods
New forged pistons (9.2:1 floating pin)
New Custom grind HYD. Roller cam Vmax lifters
New AFR ELIMINATOR 195 heads 2.02 int. 1.60ex.
(inconel exhaust valves)
New Manley push rods
New Performer air gap intake. (carb. model)
New 750 cfm Marine Carb. (or 1000 cfm MPI option)
New marine elec. fuel pump
New flywheel and damper (14"with double bolt pattern)
New Stainless steel roller rockers
New Stainless steel fasteners
New custom engine cowling
New Delco EST Marine HEI. System (rev.limit 5500)
New engine hour meter
New accusync system for twin engines (inboard)
New oil coolers
| These smooth idling (650rpm), BULLET PROOF engines are designed as direct replacement marine engines. (MerCruiser, Crusader,Volvo, etc.) Inboard or Inboard/outboard They run on dock side fuel. (87octane) 9.2:1 comp. ratio WOT rpm 4900-5300 |
Bob Tail
Bravo/alpha*
BW 72C 1.1
ZF 63-A 1.25
MPI 1000cfm
see note**
3" taller risers
Bravo/alpha*
BW 72C 1.1
ZF 63-A 1.25
MPI 1000cfm
see note**
3" taller risers
$ 15,899.99
$15,999.00
$
$19.000.00
$2500.00
$15,999.00
$
$19.000.00
$2500.00
Standard features include
| We do not recommend using this engine with alpha drives, However, we have run similar engines on smaller, light weight boats (20' / 2000lbs) through the alpha drive , with good results. |
| 100% NEW, dyno tested, broken in and ready to be pressed into service! |
* Setup for bravo or alpha, drive not
included .
included .
Engine, 2 Year limited warranty, 5 year exhaust!
New starter (high torque reduction gear)
New alt. (78 amp)
New freshwater cooling standard
New motor mts. (application specific)
New ARP bolts & studs
New high pressure /volume oil pump
New cast aluminum 8qt. Oil pan
New remote oil filter and cooler
New Our EXCLUSIVE one piece Stainless steel
header manifold (5 year warranty)
New quick drain oil (I/O only)
Standard 9 pin wiring harness w/hr meter
(canon plug)
Epoxy paint with chip resistant hard coat clear
Low oil pressure shut down, high temp alarm.
New "insta-start" starting system
(instant start ups in any weather)
Custom paint colors $190.00 (see chart)
"E3" Spark Plugs
New alt. (78 amp)
New freshwater cooling standard
New motor mts. (application specific)
New ARP bolts & studs
New high pressure /volume oil pump
New cast aluminum 8qt. Oil pan
New remote oil filter and cooler
New Our EXCLUSIVE one piece Stainless steel
header manifold (5 year warranty)
New quick drain oil (I/O only)
Standard 9 pin wiring harness w/hr meter
(canon plug)
Epoxy paint with chip resistant hard coat clear
Low oil pressure shut down, high temp alarm.
New "insta-start" starting system
(instant start ups in any weather)
Custom paint colors $190.00 (see chart)
"E3" Spark Plugs
| 420 MPI Click image |
Add $300.00
See our 1000hr. program for OFFSHORE 420 owners.
**There is a slight HP gain with the
1000cfm MPI system CLICK HERE
EFI engines come with diagnostic
software and cable.
1000cfm MPI system CLICK HERE
EFI engines come with diagnostic
software and cable.
| When you look at all the standard features of the low maintenance 420. Such as the high power to weight ratio, ease of repair, off the shelf parts availability, and unsurpassed performance. You'll see what a great bargain this package is. Compare the power, weight, standard features and nothing else even comes close! |
| All engines now come with Stainless header manifolds |
 |
The only 400+ HP small block engine on the market capable of running thru the prop exhaust without reversion problems.
Carb.
EFI/MPI
EFI/MPI
Total dry weight of a complete
offshore 420 MPI. 547lbs.
(carb. Slightly less)
350 marine engine = 730lbs
454 marine engine = 890lbs
496 Marine engine = 1025lbs
(350, 454 and 496 weights are based on
manufactures published weights, engine only)
offshore 420 MPI. 547lbs.
(carb. Slightly less)
350 marine engine = 730lbs
454 marine engine = 890lbs
496 Marine engine = 1025lbs
(350, 454 and 496 weights are based on
manufactures published weights, engine only)
Layaway payment plans are Available.