alex g Posted August 21, 2012 Share Posted August 21, 2012 I have a 1988 r model mack with a e6 350 I would like to swap it out to a mechanical e7 427 can anyone tell me what I might be up against. thanks Quote Link to comment Share on other sites More sharing options...
David Posted August 22, 2012 Share Posted August 22, 2012 First thing to check is the front engine mount. Quote Link to comment Share on other sites More sharing options...
Lmackattack Posted August 22, 2012 Share Posted August 22, 2012 Mount locations. Push or pull style clutch. Fitment of misc parts on the frame rail. Regardless. It should be a fairly easy swap. Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted August 22, 2012 Share Posted August 22, 2012 I have did it and only thing i run into was the exhaust manifold was mounting the turbo in wrong place but we made it work. The E7 will have a 5 " exhaust. The clutch will be pull on both engines.The power steering pump may be located on the front instead the rear of the comp but that is ok to. Quote glenn akers Link to comment Share on other sites More sharing options...
alex g Posted August 22, 2012 Author Share Posted August 22, 2012 I have did it and only thing i run into was the exhaust manifold was mounting the turbo in wrong place but we made it work. The E7 will have a 5 " exhaust. The clutch will be pull on both engines.The power steering pump may be located on the front instead the rear of the comp but that is ok to.thanks what did you have to do about turbo did you have to modify any engine mounts i was afraid the fan may not clear the rad Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted August 23, 2012 Share Posted August 23, 2012 thanks what did you have to do about turbo did you have to modify any engine mounts i was afraid the fan may not clear the rad The turbo had to hav the exhaust moved down some and the air to air piping altered some.The mounts was same and the pulley came out in same place. Quote glenn akers Link to comment Share on other sites More sharing options...
alex g Posted August 23, 2012 Author Share Posted August 23, 2012 thanks I don't plan on starting this project for a bit but this helps alot knowing what to expect before I start Quote Link to comment Share on other sites More sharing options...
mackdaddytruckfixer Posted September 22, 2012 Share Posted September 22, 2012 cool let me know how it turns out i have some expr. so i will give you my 2 cents. i myself like the e6 but e9 is my fav Quote Link to comment Share on other sites More sharing options...
rw613 Posted September 23, 2012 Share Posted September 23, 2012 I have did it and only thing i run into was the exhaust manifold was mounting the turbo in wrong place but we made it work. The E7 will have a 5 " exhaust. The clutch will be pull on both engines.The power steering pump may be located on the front instead the rear of the comp but that is ok to. we done it on a superliner we had to make our air to air pipes make throtle linckage...but when you say e7 427 they were vmac 2 it can still be done we used a 400 Quote Link to comment Share on other sites More sharing options...
alex g Posted September 23, 2012 Author Share Posted September 23, 2012 thanks I actually am fixing the e6 in it now I am replacing the cam and lifters but I have the e7 if all else fails Quote Link to comment Share on other sites More sharing options...
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