Silver Wraith 6.5L 385bhp
V8 Small Block Chevy 400cid
This is an exceptional engine for the discerning owner who wants to seriously upgrade the performance of any boat fitted with any type of small block engine(s).
Its the mid range torque is particularly impressive, delivering a chilling response to the throttle time making
this engine ideal for a ski boat owner who wants to excite his customers and save fuel in the process.
Still retaining Swaymar's famous benefits of surprisingly low fuel consumption, reliability and long life.
A glance at the improvement in BHP and specification will show that this engine gives surprisingly good value for money. Like all Swaymar special series engines
this too delivers bags more torque and BHP several hundred rpm lower down the rev range than its factory replacement counterpart. Specifically designed for Hi-torque,
this engine is perfect for marine applications.
These carefully considered engineering improvements result in a considerably faster boat but without the usual fuel penalties associated with more power.
Compatibility
- Mercruiser
- Volvo Penta
- Indmar
- any boat running Chevy V8s
Only suitable for Mercruiser's equipped with Bravo legs, Bravo legs are rated at 500BHP. Alpha legs are rated at 300BHP. Can be used with most Volvo Penta drive legs, as most are duo prop.
Included
All of our engines include a free inlet manifold inspection and reconditioning to 'as good as new'.
Note: If prior to inspection your existing manifold is un serviceable, a new one will be required.
- Fresh water cooling system
- Stage 1 performance marine camshaft
- Full refurbishment and re assembly of existing ancillaries
Options
Most but not all engines that are sea water cooled will require a new block upon rebuild.
- Re-manufactured block
- Brand new block
Warranty
- 1 year limited warranty,subject to the fitting of a new or refurbished inlet manifold and new cast iron exhaust manifolds
- 2 years limited warranty when fitted with 1 piece stainless steel exhaust manifolds
Not Included
- *New Cast iron exhaust manifold*
- *New Inlet manifold*
Recommendations
We strongly recommend to all of our customers to consider trying a 1 piece stainless exhaust system and do away with the fear of leaky cast iron ones ruining your engine. You can find more detailed information on stainless steel marine exhausts as well as independent articles written by marine surveyors on the pit falls of cast iron manifolds at stainlessmarineexhausts.co.uk.
Propeller Pitch
Depending on boat, in order to prevent over-revving, and feel the full effect of its extra torque,
this engine may need to carry a larger diameter or coarser pitch propeller.
Specification
| Displacement | 400 CID (6.5L) |
|---|---|
| Engine Type | V8 |
| Peak Torque | 425 ft lbs @ 4150 RPM |
| Torque Range | 400+ ft lbs @ 2700 - 4600 RPM |
| BHP | 385HP |
| Bore & Stroke | 4.125" X 3.750" (104.755mm X 95.25mm) |
| Compression Ratio | 9.5:1 |
| Camshaft | Stage 2 - Specially developed marine camshaft - delivering more torque at lower rpm. |
| Major Components | Steel crankshaft, forged competition con rods, and performance pistons. |
| Head & chamber work | Moderate reshaping of combustion chambers and cylinder heads - Improve gas flow and increase torque. |
| Cooling System | Closed fresh water cooling, Long Life 5-Year Anti-Freeze, 20 year long life silicon hoses - Protecting your engine from the inside out. |
| Advanced Engine Lubrication System | Expertly modified oil galleries provide greatly improved lubrication to the camshaft, cam followers, gears and timing chain - For optimum engine longevity. |
| Dimensions (LxWxH) in | 43x 30 x 22 |
| Dimensions (LxWxH) mm | 1092 x 740 x 559 |
| Weight (lbs./kg) | 948/431 |