318, 340, and 360 (pre 1992) are identical LA mopar small blocks. The bolt patterns for both mounts and trans ends are the same. Everything interchanges on them. One very good upgrade on these engines is to enlarge the 1.88" intake valve to a 2.02". The heads on these motors are pretty restrictive, this nets another 25-40hp depending on the cam selection while bettering the fuel economy. I am a bit of a mopar nut and have built several small and big blocks so if you have any questions on the motors give me a shout.
--- On Fri, 4/6/12, Aaron Johnston <[email protected]> wrote: From: Aaron Johnston <[email protected]> Subject: Re: [UnifliteWorld] 27" Express Cruiser motor trannie swap To: [email protected] Date: Friday, April 6, 2012, 9:28 PM If the engine is truly seized just from non use for many years it may be worth a brief trial of un-seizing it before you pull and swap everything. On the off chance the engine does release with just a little oil in the cylinders you will have saved yourself a huge amount of work, and if not you are just out 10 bucks for a bottle of anti-seize (or stove oil or whatever concoction you like to use on seized stuff). My 2 cents, Aaron On Tue, Mar 20, 2012 at 10:20 PM, John Ellison <[email protected]> wrote: 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. -- Dr. Aaron Johnston BSc, MD, CCFP EM [email protected] www.emergsource.com -- 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.
