Mercruiser Engine Specs
 

Does anyone know of a source for engine specs such as head bolt torque, intake manifold bolt torque etc... for a 1999 7.4L engine. The motor has been reworked bore .030 over with Dart heads and roller everything, but I'd like to take it down this winter to inspect and can't locate a decent source book with the torque specs. I'm sure marine engines must have different specs and clearances than auto engines. Right?

Thank You In Advance

Kirk:confused: :confused:

Pantera24-650HP
Here is a tread welcoming Dennis Moore to OSO.
This should get you what you need.
There is a link to his book, Big-Block Chevy Marine Performance: Engine Modifications for Maximum Boating Performance

http://www.offshoreonly.com/forum/sh...bc+marine+book

Well all ya had to do.... was ask! lol The
complete breakdown of factory specs are in the link below.
I will make more as time allows & hope this helps you guys ~smile~

http://home.attbi.com/~fordhater/osostorkspecs.JPG

http://home.attbi.com/~fordhater/osostorkspecs2.JPG

CLICK HERE to see the nitty gritty!

Great job FindMe, Nice job on the web page also.
I love OSO!

Thanks for the great chart!!!!
 

Thank you very much. I will definately put the info to great use. If my engine (7.4L)has been modified should I use the 502 specs for the main bearing torque etc...? Everything has been changed to forged - Crank, rods, etc...


Thanks Again

I added the 7.4 MPI specs page, with a link to it from the 7.4 / 502 page above. Hope this helps...

Ahhh ****, here it is below...lol

7.4 MPI specs page

Ahhhh! Thanks. I needed that.:D

Hey Findme, would you happen to have the specs on the1984 era 400hp Cyclone 454 packages or where I could find them Please?....Thanks Fred

Pantera,
Are those Dart heads alum? If so, they may be torqued differently from the factory cast iron heads.

Dart Heads
 

They're cast, but thanks for looking after me...I could use all the help and checking I can get!!!!