John, I have a 27 Express Cruiser with a single small block in it. If you have the Velvet Drive the shaft angle is such that in my case the Chrysler intake manifold has a wedge built into it to keep the cargs level. When I pulled it, I found that manifold has 318 ports in it. That will choke off the power a lot more than the smaller valve sizes. You can go with an aftermarket intake and a separate wedge (I got mine online) and it will give a lot better power at planing speeds.
John ________________________________ From: "Bohn, Steve" <[email protected]> To: "'[email protected]'" <[email protected]> Sent: Monday, April 9, 2012 5:11 AM Subject: RE: [UnifliteWorld] 27" Express Cruiser motor trannie swap While engines are out change gas tanks ???? From:[email protected] [mailto:[email protected]] On Behalf Of e b Sent: Friday, April 06, 2012 5:16 PM To: UnifliteWorld Subject: RE: [UnifliteWorld] 27" Express Cruiser motor trannie swap john, i had an express cruiser for many years, if they are straight drives the swap should be pretty simple, i believe some 27's came with Vdrives, if that is the case its no big deal but you will have to retain the original transmissions. i would not worry about prop shafts, the stock is plenty strong for gas engines, i ran mine with a cummins diesel and 20" prop and never had a problem. your existing mounts should be fine as well. eric > Date: Tue, 20 Mar 2012 22:20:23 -0700 > Subject: [UnifliteWorld] 27" Express Cruiser motor trannie swap > From: [email protected] > To: [email protected] > > In December I made a "commitment" to buy a 27" Express Cruiser, I say > commitment because I have not seen the boat as it is buried under many > feet of snow. It is being shoveled off but I cannot retrieve it until > maybe May or more likely June. > > The price was right so unless the seller really misrepresented it, it > should be OK. The boat has 318's with Paragon Gears. It has not run in > a while and have been told that the motors do not trun over and need > to be replaced. > > 2 weeks ago a pair of 360's with Velvet drives, manifolds, heat > exchangers, etc showed up on CL. I bought the pair site unseen and > spent last Saturday getting them started. I only ran them briefly as > they were dry. I will need to move on the next step and get them ready > to go in the boat. I will most likley remove everything except the > intake, inspect reseal, repair rebuild as needed. > So far the motors look pretty good, sound good, and had clean oil in > both the motors and the trannies. > > I plan to set the motors up so I can run them for 1/2 hour or so and > check temp, pump pressure on the Velvet drives and make sure they > warrant further effort. > > I am really wondering how diffrent they will be from the Paragon > setup, its driving me crazy not having the boat to figure some of this > out...........I am new to the world of bigger boats and particuarly so > with inboards with gears....... > > So, are the motor mounts the same for both? will I need to modify the > propshaft? What am I getting into? > > I do not know anything about the boat, the 360's were removed to make > hull repairs. They have the "log" style manifolds and have a closed > cooling with sherwood raw water pumps and sendure heat exchangers. > > Thanks, John > > -- > You received this message because you are subscribed to the Google Groups > "UnifliteWorld" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/unifliteworld?hl=en. > -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.-- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en. -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.
