I have acquired the Hedmann headers for the 454, but I am having difficulty getting a response from the likes of Hedmann and Summit to complete the system with that Balance pipe. I had planned to replace the exhaust with a more efficient system in order to improve the fuel consumption..... HOWEVER...... I also....
After grounding out leaving a fuel station I have come to the conclusion that the LPG(propane) conversion for the engine, I had planned on, is a bit "iffy" to say the least when it comes to finding space for a reasonable size tank(s). The grounding really proves the point. I would hate to damage a Propane tank!
A lot of hump-back bridges and the like in the UK compounds the issue.
I have been offered the 6.5 Diesel V8 out of an Ambulance, complete with I think, a four or five speed auto box.
The questions on my mind are... Will the header fit the diesel? I assume, as it is the same engine maker(?) that they use the same/similar block and heads. Has any one done this conversion?
I worked it out that the LPG (Propane) conversion on the engine in the UK will POSSIBLY give a running cost equivalent to about 18MPG, where as the diesel I hope will return about 20-22 mpg.
Certainly the cost of the engine to me would be less on the install, with just some small modifications to the fuel lines and a tank clean. It does mean that moving the levelling jacks and air receiver is not necessary to squeeze in the LPG tanks, that's a great bonus. I caried out a similar conversion from petrol 3.5 V8 in a Range Rover to a Nissan RD28 diesel engine, and that was well worth while.
Any comments would be gratefully received and acknowledged.