Hemi Engines

J-Rooster wrote:

chaffeekid wrote:
The ford v10 is a high revving engine, and is 6.8 Liters
The big Chevy is 8.1 Liters, big difference. Loved the workhorse and Chevy in our 2002 Pace Arrow. And, yes I know all about the brake problems thanks.

The brake problems were caused by Bosch suppling RV manufactures with bad calipers! The brake problems were caused by Bosch!

still a workhorse problem any way you look at it

chaffeekid wrote:
The ford v10 is a high revving engine, and is 6.8 Liters
The big Chevy is 8.1 Liters, big difference. Loved the workhorse and Chevy in our 2002 Pace Arrow. And, yes I know all about the brake problems thanks.

The brake problems were caused by Bosch suppling RV manufactures with bad calipers! The brake problems were caused by Bosch!

The ford v10 is a high revving engine, and is 6.8 Liters
The big Chevy is 8.1 Liters, big difference. Loved the workhorse and Chevy in our 2002 Pace Arrow. And, yes I know all about the brake problems thanks.

MotorPro wrote:

usersmanual wrote:

randallb wrote:
The new Hemi is not a true hemi but kind of a combination of a trick flow design and a BBC head. A true hemi has the valve stems 90 degrees to each other and a direct line from intake to exhaust port. The new hemi is more of a splayed valve. Since Dodge is the truck line almost all of their heavy trucks rely on the Cummins 6.7. Now that would make a nice RV chassis but no one wants a FRED. FREDs are inherently noisy.
Randy

BS The 426 hemi valves were 180 degrees to each other and so are the new 5.7 and 6.4 engines

first of all 426 valves are 90 degrees apart. Second the new "HEMI" is not ever close to true hemi. Chrysler stole the design over 60 years ago and then copyrighted the word and now it is catch phrase and not a true design.

The valves are directly opposing each other on the old hemi and the new hemi and the heads of both are of hemispherical design
so although they are quit different because of carbureted verses fuel injection and strokes and cams and Compression ratios and block design etc there both HEMI Head engines

The hemi design is in the head itself. Right now you can buy a hemi head for a Chevy or Ford, or go with the one that Chrysler has.
Chevy Hemi
Ford Hemi
Chrysler Hemi

J-Rooster wrote:
Does anyone know why these engines are not being used by Workhorse as a option to Big Block Chevy? Thanks for all opinions!

Too much weight and work for the HP you get out of them

usersmanual wrote:

randallb wrote:
The new Hemi is not a true hemi but kind of a combination of a trick flow design and a BBC head. A true hemi has the valve stems 90 degrees to each other and a direct line from intake to exhaust port. The new hemi is more of a splayed valve. Since Dodge is the truck line almost all of their heavy trucks rely on the Cummins 6.7. Now that would make a nice RV chassis but no one wants a FRED. FREDs are inherently noisy.
Randy

BS The 426 hemi valves were 180 degrees to each other and so are the new 5.7 and 6.4 engines

first of all 426 valves are 90 degrees apart. Second the new "HEMI" is not ever close to true hemi. Chrysler stole the design over 60 years ago and then copyrighted the word and now it is catch phrase and not a true design.

wa8yxm wrote:

J-Rooster wrote:
Does anyone know why these engines are not being used by Workhorse as a option to Big Block Chevy? Thanks for all opinions!

Well yes and it is easy. Worknorse used to be GM, they are a Spin off of GM (Beofre Workorse they made GMC, Same plant, Same people, Same designs) SO Workhorse is set up for GM engines. always has been.

HEMI is not a brand, it's a design, and it's the engine design CHRYSLER uses.

So for Workhorse to use Chrysler engines.. not likely going to happen. at least not in teh Gasoline engine class.

In the Diesel class you often find alternative companies. For example a FORD chassis, with a Cummings engine, and an Allison tranny is not unhead of,, But never in Gas less it's an after market mod.

Thanks John! Workhorse stated when they get back into the RV Chassis sometime in the future there going with two gas engines a 6.0 for the smaller coaches and a 8.8 for there larger coaches but they wouldn't mention the engine brand? Possibly the Ill. engine?

J-Rooster wrote:
Does anyone know why these engines are not being used by Workhorse as a option to Big Block Chevy? Thanks for all opinions!

Well yes and it is easy. Worknorse used to be GM, they are a Spin off of GM (Beofre Workorse they made GMC, Same plant, Same people, Same designs) SO Workhorse is set up for GM engines. always has been.

HEMI is not a brand, it's a design, and it's the engine design CHRYSLER uses.

So for Workhorse to use Chrysler engines.. not likely going to happen. at least not in teh Gasoline engine class.

In the Diesel class you often find alternative companies. For example a FORD chassis, with a Cummings engine, and an Allison tranny is not unhead of,, But never in Gas less it's an after market mod.

jwmII wrote:
A company in Illinois has taken over the 8+ litre big block v-8 and has done a lot of engineering design improvements and offers the engine for sale to Rv and truck builders. I am surprised there has not been more publicity about it.

As for the Chrysler, Dodge, Ram hemi line, My view of this engine for motorhome use is marginal. I own two of them, one in a Grand Cherokee and one in a Ram.I love em and their performance. There are some things that concern me like the aluminum construction and the open deck under the cylinder heads. Get all that in a class A chassis where air flow around the engine could be better and the rest of the cooling system is barely adequate but not capable of dealing with some of the severe heating problems we have all seen over the years on these vehicles. That atmosphere has been difficult for cast iron engines to survive in not to mention aluminum.

Thanks, I wasn't aware of the Illinois company.