Heads for blower

Reply Subscribe

Thread Tools

11-17-2009 | 08:09 PM

baja27

Thread Starter

Registered

Joined: Nov 2000

Posts: 1,518

Likes: 21

From: PA USA

Heads for blower

Which heads would you guys recomend for a 509 with 5-7 pounds of boost, turning max rpm of 5600.
Thanks

11-18-2009 | 01:38 AM

Griff

Charter Member # 55

Joined: Oct 2000

Posts: 20,232

Likes: 2,482

From: Omaha/LOTO

Heads need to match the cam for the best performance. It really just depends on what you want and how much you want to spend.

11-18-2009 | 05:54 AM

PatriYacht

Registered

Joined: Jul 2002

Posts: 2,867

Likes: 2

From: Waterford,MI

Afr 315 Cnc

11-18-2009 | 07:59 AM

baja27

Thread Starter

Registered

Joined: Nov 2000

Posts: 1,518

Likes: 21

From: PA USA

Cams are 525efi

11-18-2009 | 08:43 AM

Smitty

VIP Member

Joined: Apr 2001

Posts: 4,213

Likes: 0

From: Chicago il

Many choices out there, just make sure they are aluminum.

Best talk to Bob Madera of Marine Kinetics. He can spec heads and a cam that will make more power than you think.

Call Bob at 585-654-8583

Tell him Smitty sent you.

__________________
Want your ECU tuned right?? Call Mark at Precision www.pmefi.com

11-18-2009 | 04:26 PM

C5Steve

Registered

Joined: Oct 2003

Posts: 262

Likes: 1

From: MD

Dart 380's

11-19-2009 | 02:11 AM

Griff

Charter Member # 55

Joined: Oct 2000

Posts: 20,232

Likes: 2,482

From: Omaha/LOTO

Quote:

Originally Posted by C5Steve

Dart 380's

WAY TOO BIG.

The AFR's 315's would probably be a good choice.

11-19-2009 | 11:24 AM

michigan troll

Registered

Joined: Sep 2004

Posts: 253

Likes: 0

From: Rockford Mich

I have the same set up. Bored 502efi, procharged at 7#, using the 525 cam and dart Pro1 320 mild port.
The combo dynoed 814+ @ 5500
That was with all the pumps belts and marine exhaust.