Rolls Engine Conversion

Rolls Royce or Bentley
Cloud, Shadow, Spur & Limousines etc.
Engine Conversions Engineered to fit right the first time, we also pay attention to the details.
Owning a Rolls or Bentley generally means you want to stand out in a crowd, that's great. our job is to make sure you can get there and back reliably, every time with out spending your kid's inheritance. our work is hidden under the bonnet, so when you pull up to Sardi's, park on Rodeo Drive, or just go to the home town bistro no one will know what kind of power got you there and home, we even try and make your vehicle sound the same.

350HP Shadow 260HP Shadow Cloud w/Rolls Air Filter

350hp GM EFI RR TH-400 Automatic
Click on pictures for full view of some of our work, both with EFI.

We do Engine conversions for Rolls Royce & Bentley in our shop.
We also have the required Brake modification & rear suspension fix.

The BIG question why put a GM Engine in your Rolls or Bentley?
It deserves a Heart Transplant just like we might!
Cleveland is #1 for heart & Rolls/Bentley transplants.
Save a Rolls or Bentley from the salvage yard, give it new life.

	Bring your vehicle into the 2000 era with new reliable life.
	Don't let your Rolls/Bentley end up in a salvage yard, give it new life.
	Your investment in a new GM V8 will be returned as the car go's up in value un-like a new car that will go down in value to a tax donation in the coming years.
	Our conversions are Engineered to fit your Vehicle not a cut & weld job.
	Our Conversions are a must for Limousine Services, Low cost reliability.
	Easy to get parts most any place in the world faster for less money.
	You get a New Engine rather than a re-built with a lot of old parts.
	Service can be done at most any garage faster for far less money.
	The GM EFI Engine pictured has 350 hp & 400# torque.
	The Hi-Performance 350 hp will have a mild performance idle but cruse smooth.
	The New MEFI-4 GM Computer with closed loop system with improved idle.
	The New MEFI-4 Computer is ideally suited for street vehicles with improved drivability.
	We also have a smoother 260 hp Cadillac/GM 350" V8 w/4B Carb for less $.
	New Delco 134 type AC Compressor (if you have AC).
	New Saginaw Power Steering pump (if you have Power Steering).
	New Corvette Hi-Torque gear driven Starters.
	Delco 105 amp alternator.
	The Starter we use sounds more like a Rolls when starting than a GM Engine.
	We use a spring loaded serpentine fan belt for maintenance free reliability.
	All GM TH-400 Automatics are not the same, please check the pictures below.
	Do you want your Rolls Automatic to feel like a Chevrolet or a Rolls Royce?
	This is the inside of a Chevrolet TH-400 Automatic Check the pump passage's at the bottom of the pictures. This is part of the reason we selected the Rolls Automatic over the standard Chevrolet TH-400 Automatic.
	This is the inside of a Rolls Royce TH-400 Automatic View the added pump oil passages at the lower portion. This will make a difference in the shifting & performance of a Hi quality TH-400 and a standard TH-400.

Why have us do the conversion.

	We have several years of R&D engineering, tooling & castings to do the job right.
	Our Conversions are designed to fit correctly, not cut & weld to fit.
	We have designed our GM V8 conversions to be a direct bolt in replacement.
	We DO NOT cut into the frame or sub-frame at all with our 350" or 383" V8 conversions.
	We DO NOT weld mounts or brackets to your frame reducing the re-sale value.
	We DO NOT drill holes in your air tight frame or sub-frame reducing the re-sale value.
	Your frame is an air tight sealed assembly to keep moisture out to prevent rusting from the inside out since the inside is not painted.
	We mount the GM Engine to the same mounts that the Rolls Engine was mounted to with the stock Rolls mounts.
	By using Rolls 3 point mounting system we minimize engine noise & vibration retaining Rolls technology.
	If you ever wish to re-install the Rolls Engine it will just go right back in where it came out and no one will ever know it had left.
	We have a special oil pump so we can clear the rear sub-frame, (Shadow & >).
	We have a center sump oil pan to clear the sub-frame & steering, (Shadow & >).
	We make an adapter to go between the GM Engine and the Rolls TH-400 Transmission the way Rolls installed the Engine originally.
	This also retains the original Rolls/Bentley automatic performance & shift quality.
	Cloud gets a New late model Rolls TH400 case with correct components for your application.
	This retains the Rolls rear Engine mount & torque control system.
	We make an elaborate front Engine mount to go to the Rolls front Engine mounting pad.
	We have the required Brake modification, (more on that later).
	We have a Cloud & P-5 Brake conversion that really works great.
	Our Cloud Brake conversion is done without modifying the drum-brakes.
	We have developed an Electro-Hydraulic pump system for the rear suspension to retain the ride control system you now enjoy. We have systems for both DOT-3,(Yellow) & Mineral Oil, Green) systems on Shadow & > vehicles.
	We do the (Shadow & newer) conversions with out removing the hood or changing the inside of the vehicle.

If you are looking to have some one close to home do your conversion here are some questions you should ask before turning your expensive Rolls or Bentley over to them.

	Will the conversion be a well engineered instillation or a make do conversion?
	Only professionally engineered conversions will play a BIG part in the value of your vehicle.
	Will they cut into your sub-frame to clear the oil pump & pan? (Shadow & >)
	Will they weld mounts to your frame or sub-frame?
	Un-sealed frame or sub-frame will allow water to enter & rust from the inside out.
	Will they swap your Rolls Transmission for a Chevrolet unit & keep your Rolls Transmission?
	Will they install a rear Transmission mount to the unibody of your car so the noise & vibration can come into the vehicle?
	Will they swap your Rolls radiator for a replacement unit & keep your expensive Rolls radiator?
	Will they cobble in a Car or Truck brake system and try to make it work?

If the answer to those questions is YES then it would be worth it to let us ship your Rolls Royce or Bentley to Ohio for a professional conversion.
When the conversion is complete you can fly in to Cleveland air port and drive your all-most New vehicle back home with the confidence that the job was done correctly.
We do conversions from all over the USA and from as far away as Australia so I am sure we can do your conversion no matter where in the world you live.
We have been doing conversions of all kinds of since 1954.
For years now we specialize in Rolls & Bentley conversions!

NOTE: We are currently doing a custom show car 350 EFI conversion for a customer that is running his own progress web site.
Click here & Give him a look.
This site is well worth your time.

We can also do special custom conversions like a Supercharged 350" or 383" V8 or Big block 502" GM V8 and many other Muscle Car selections if you want your Rolls to perform with the hot cars of today. Just remember Speed cost money, how fast do you want to go?
Please give Chuck a call and tell him what you would like.

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Have Chuck contact me or give him a call @ (440)-234-6810?

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Send mail to Just ask Chuck with questions or comments about this web site. Last modified: February 25, 2007

Send mail to Just ask Chuck with questions or comments about this web site.

Last modified: February 25, 2007