Evo heads -- preferred for porting?

[fuct44]

Title says it all...any preferences for porting when it comes to Evo heads?  Certain years? Stock castings or S.E.? Or even S&S?

TIA

[jsachs1]

95 and later, stock EVO castings would be my choice.
Look closely at the seat top angle on all EVO heads for flaking, also cracks in the spark plug area.
John

[fuct44]

Thanks John, appreciate it.

-Jimmy

[bobrk1]

I did head-quarters do mine can do an exchange so no down time, got a twin cam now would do them again

[turboprop]

Title says it all...any preferences for porting when it comes to Evo heads?  Certain years? Stock castings or S.E.? Or even S&S?

TIA

STD if they can be found. S&S offers two heads for the oem bolt pattern Evo engine. The long in the tooth SuperStock castings require either a proprietary piston from S&S or extensive welding in the chamber. The S&S replacement heads look promising as they have sort of a bathtub chamber, work with a flat top piston and have plenty of meat for a porter to work with. And they are available new in the box for just over $800 a set.

[prodrag1320]

as far as stock HD heads go,pretty much any year (head breathers if its a head breather motor) are fine.it just goes to say,if you start with a better flowing head,you`ll end up with a even better flowing head (ie: S&S,STD,ect)