350 mag carb version roller or not ?
#1
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
Little help needed here. Looking at a 1994 mcm 350 mag carb engine serial # OF126045. Was wondering if this is a roller cam version or not without pulling apart. Been on mercruiserparts.com but can't figure out which one it is, did a little searching too ... Any help is appreciated!
#3
Registered
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
Posts: 6,306
Likes: 0
Received 1 Like
on
1 Post
![Default](/forums/images/icons/icon1.gif)
Little help needed here. Looking at a 1994 mcm 350 mag carb engine serial # OF126045. Was wondering if this is a roller cam version or not without pulling apart. Been on mercruiserparts.com but can't figure out which one it is, did a little searching too ... Any help is appreciated!
#4
Registered
![Default](/forums/images/icons/icon1.gif)
I agree...1994 was too early for roller or Vortec in a stock Mercruiser. Look for 1998 or later if that's what you're after.
Last edited by sprink58; 08-02-2013 at 06:22 AM.
#5
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
Thanks guys, trying to order an engine for a customers boat should have been easy with the serial # I would have thought. We will get the non roller 95 and earlier version. Thanks again
#6
Registered
![Default](/forums/images/icons/icon1.gif)
There was a thread in this section or the do it yourself section from a guy with a '94 Crownline and this topic came up and it turned out what most people thought would be a flat-tappet cam motor had a roller in it from Merc.
Edit - Post #25. '93 350 MAG with a factory roller cam.
http://www.offshoreonly.com/forums/g...ad-swap-3.html
Edit - Post #25. '93 350 MAG with a factory roller cam.
http://www.offshoreonly.com/forums/g...ad-swap-3.html
Last edited by Knot 4 Me; 08-02-2013 at 08:46 AM.
#7
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
I can get to the engine tonight I think I might investigate a little further myself and verify what the internals are. Thanks for your help guys!
#9
MarineKinetics
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
The production year 1987 was the beginning of the transition from flat tappet to roller cams. The changeover coincided with the introduction of the one piece rear seal block designed to eliminate the use of flat tappets. By 1988 the NOS with dealers was mostly installed and the production side was virtually exclusive to roller.
Bob
Bob
#10
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
It turned out to be a roller cam !