Im searching for the pushrod cover gasket, but the auto parts counter fellas are having a bit of trouble understanding what I'm doing. Can someone here tell me if a GM auto may be the same block casting?? Block number is 14097080 ( not sure if the 1 is really there ). I've been told its a 92 mercruiser 181, but I'm not sure. Those numbers don't seem to be matching what I have found for the Marine series.
http://1954advance-design.com/Stovebolt-engine/casting-numbers.html http://www.castingnumbers.info/site/search/3837012
Hard to tell exactly from the pictures, but that looks like a 120 hp Mercruiser engine. If so, I think this is the gasket you need. Any Mercruiser dealer should be able to get you one if you give them the engine numbers. Don Well, that page didn't print as I wanted. Just call a Mercruiser dealer and give them your engine numbers.
The head is from a 153 but it will also fit on the 181 (which is what I have). The 1962-70 4 cylinder Chevy II pushrod cover gasket should work. Charlie Stephens
Yep...the 153 Chevy II side cover gasket is the same piece as the 181 GM Industrial and Mercruiser side cover gasket. An industrial engine place or a Mercruiser dealer will have one in stock while most autoparts stores will probably have to "order it in" if you ask them for the '62=0 Chevy II "automotive" gasket. Mart3406 ===============
A lot of the gas and propane powered Hyster forklifts had 181's in them 15 to 20 years ago. A hyster dealer might be another good gasket source. ` I also found a pfd with some Merccruiser 181 info and info telling how to figure out what you have. http://www.maxumownersclub.com/forum/site_files/manuals/mercruiser/26.pdf Lots of non relevant boat info but some good stuff there too. Take a look at 3-A6 on this pfd. Good info on engine ID http://www.boatfix.com/merc/Servmanl/13/13A3R2.PDF
As said you have a 153 Chevy II head there ,easy to tell by the way the manifold fits. Only odd gasket on your engine would be the head gasket if it is the 181 with a 4" bore. All other gaskets are the same as the 153 Chevy II mail Jeep etc.
It sure looks like my MerCruiser Marine valve cover and side plate. On the side plate mine has "MerCruiser Marine" cast in (the one in the picture may have been machined off or it just doesn't show up in the photo) and on the valve cover, if I remember correctly, there was a stick on label. Charlie Stephens
They are marine covers, with ribs in the casting. Nothing to special; cast has a few pits under close inspection.
Today at work I pulled up the part numbers for a Mercruiser 120/140 pushrod/lifter gasket. The MC number is 27-34208 and the Sierra number is 18-0328. I am basing that on my ***umption yours is a 120/140. Don
I don't know, I am only guessing it is a 120/140 from the picture. If we had some numbers off the block or tag that is riveted to the block it would help. It appears there are two 140 engines, an early and a late, but not sure what the differences are. My parts book at work shows them as a 153 ci and a 181 ci. Don
No..the cover size and location and other external dimensions on the 153 and 181 are the same. Both engines are based on - and are basically,, just shortened, 4 cyl. versions of - the standard 194-230-250 Chevy car 6. While the 181 has a bigger, 4-mch bore and a longer, 3.6 inch stroke than the 153, it's not based on the raised-deck 292 Chevy truck 6. Mart3406 =============
At least the cyl head is a Chevy 153, Mercruiser 120. The intake and exhaust manifolds are Clifford, I have the same setup in my T. I kinda like the 94s, probably a vintage speed adaptor huh? I'm using a Weber.
No..the cover size, motor mount and distributor location and other external dimensions on the 153 and 181 are the same. Both engines are based on - and are basically, just shortened, 4 cyl. versions of - the standard 194-230-250 Chevy car 6. While the 181 has a bigger, 4-mch bore and a longer, 3.6 inch stroke than the 153, it's not based on the raised-deck 292 Chevy truck 6. Mart3406 =============
Thanks for the help thus far. The Felpro early Chevy II gasket did not work out. The small doughnut gaskets were too small for the Marine cover bolts. I have a different p# coming today to see if that changes at all.
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