6.2 mercruiser valve springs?
#1
Thread Starter
Registered

Joined: Jan 2003
Posts: 167
Likes: 0
From: Lawrenceburg, Indiana
I am fixing a blown head gasket on a 2002 6.2. Does anyone know cam specs or where I should source replacement springs? I plan to use MLS gaskets since this blown headgasket thing is somewhat common. Thanks!!
#4
Registered

Joined: Jun 2011
Posts: 1,208
Likes: 141
#5
Thread Starter
Registered

Joined: Jan 2003
Posts: 167
Likes: 0
From: Lawrenceburg, Indiana
The heads are just GM Vortec. I did figure out that the cam is a crane 104224 from searching some forums..Everything looks good I just figured 15 yr old springs may be worn and weak. Any head gasket recommendations??
#7
Registered
Joined: Sep 2009
Posts: 419
Likes: 14
From: Lake Winnipesaukee, NH
See if there's a compatible beehive spring. They are lighter and can handle more rpms with lower pressures which equates to longer valve train life. Next item after that is short travel lifters. They act better at high rpm than the stock ones.
Use whatever stainless head gasket gets you the right compression ratio while trying for good quench. Do those engines still use round dish pistons?. If they have d dish measure how far down from the deck the pistons stop then calculate what thickness gasket will get you the right compression ratio. If it all works out,get a gasket for .040 quench height, It's the distance from the flat of the piston to the flat of the head. Cometic and Felpro are good head gaskets. MLS, multi layer steel, or shim stainless steel work.
Use whatever stainless head gasket gets you the right compression ratio while trying for good quench. Do those engines still use round dish pistons?. If they have d dish measure how far down from the deck the pistons stop then calculate what thickness gasket will get you the right compression ratio. If it all works out,get a gasket for .040 quench height, It's the distance from the flat of the piston to the flat of the head. Cometic and Felpro are good head gaskets. MLS, multi layer steel, or shim stainless steel work.
#8
Registered

Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
See if there's a compatible beehive spring. They are lighter and can handle more rpms with lower pressures which equates to longer valve train life. Next item after that is short travel lifters. They act better at high rpm than the stock ones.
Use whatever stainless head gasket gets you the right compression ratio while trying for good quench. Do those engines still use round dish pistons?. If they have d dish measure how far down from the deck the pistons stop then calculate what thickness gasket will get you the right compression ratio. If it all works out,get a gasket for .040 quench height, It's the distance from the flat of the piston to the flat of the head. Cometic and Felpro are good head gaskets. MLS, multi layer steel, or shim stainless steel work.
Use whatever stainless head gasket gets you the right compression ratio while trying for good quench. Do those engines still use round dish pistons?. If they have d dish measure how far down from the deck the pistons stop then calculate what thickness gasket will get you the right compression ratio. If it all works out,get a gasket for .040 quench height, It's the distance from the flat of the piston to the flat of the head. Cometic and Felpro are good head gaskets. MLS, multi layer steel, or shim stainless steel work.
#9
http://www.cranecams.com/product/car...detail&p=24200
I would use some SS core Felpro Marine head gaskets that match the application.
#10
Registered
Joined: Sep 2009
Posts: 419
Likes: 14
From: Lake Winnipesaukee, NH
Agree with the above. I operate on the assumption that surfaces are checked or corrected. But I still stand by beehives IF springs are needed. For the few dollars more they work better due to lower weight and rates to control the same amount of valve train pieces. Nothing wrong with normal springs though.



