Elite Marine

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

28Eliminator

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

FindMe

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~





CLICK HERE to see the nitty gritty!

28Eliminator

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

Elite Marine

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

FindMe

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

MACDAD260

Ahhhh! Thanks. I needed that.

fred

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

pachangalpina

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

Elite Marine

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