KB 2.6 with stock block???
Senior Member
Joined: Jul 2004
Posts: 465
Likes: 0
From: Fayetteville, NC
Originally Posted by lightninquick
bigger lift on the cams is all you really need,,,,too much lift was always a problem with the little kb
the bigger kb and the whipple 2.3 can support bigger cams
the bigger kb and the whipple 2.3 can support bigger cams
Member
Joined: Nov 2001
Posts: 28
Likes: 0
From: Massachusetts
Originally Posted by NCsvt2003L
People are going to soon realize that even built motors won't be able to handle a 2.6 KB or for that matter the boat supercharger 3.3 Whipple. Not that the block will blow up, but the amount of boost going in won't net any gains and probably will make less horsepower than a 2.3 KB or 2.3 Whipple would. That means major head work and cams matched to support the race chargers.
Definatly is a truth to that. Last night I was checking out the patriot heads, even their stage 3 head flows 226 cFM, granted their might be other shops out there that can beat that, but by how much? That is definatly poor, especially for the 5.4L
I know some folks are talking about cams, but what you really need to understand is that even with cams, the head still only flows more or less 226cfm through the intake side with a stage 3 port. Cams definatly help, and on these heads the gains will be major, but port work shouldnt be overlooked.
DOHC engine is flowing over 300 per port. Makes sense why people are doing the swap. Im wondering if the GT500 top end would be a better alternative. Not only do you get better flowing heads, but a blower/intake that mates to it as well.
Storm
Senior Member
Joined: Jul 2004
Posts: 465
Likes: 0
From: Fayetteville, NC
Originally Posted by DSM Storm
Definatly is a truth to that. Last night I was checking out the patriot heads, even their stage 3 head flows 226 cFM, granted their might be other shops out there that can beat that, but by how much? That is definatly poor, especially for the 5.4L
I know some folks are talking about cams, but what you really need to understand is that even with cams, the head still only flows more or less 226cfm through the intake side with a stage 3 port. Cams definatly help, and on these heads the gains will be major, but port work shouldnt be overlooked.
DOHC engine is flowing over 300 per port. Makes sense why people are doing the swap. Im wondering if the GT500 top end would be a better alternative. Not only do you get better flowing heads, but a blower/intake that mates to it as well.
Storm
I know some folks are talking about cams, but what you really need to understand is that even with cams, the head still only flows more or less 226cfm through the intake side with a stage 3 port. Cams definatly help, and on these heads the gains will be major, but port work shouldnt be overlooked.
DOHC engine is flowing over 300 per port. Makes sense why people are doing the swap. Im wondering if the GT500 top end would be a better alternative. Not only do you get better flowing heads, but a blower/intake that mates to it as well.
Storm