300hp 4.6?
Senior Member
Joined: May 2008
Posts: 969
Likes: 0
From: Minnesota
well i guess i have to believe ya!
http://www.youtube.com/watch?v=6DqM-WYF7RA
its just crazy, it seems like these engine should be putting out way more ya know. Aspecially after all the add ons cams porting and tune!
http://www.youtube.com/watch?v=6DqM-WYF7RA
its just crazy, it seems like these engine should be putting out way more ya know. Aspecially after all the add ons cams porting and tune!
Senior Member
Joined: Oct 2005
Posts: 3,579
Likes: 1
From: Wilmington DE
I just saw some pics over on one of the Lightning sites and the valve guides were falling apart!
My first set of heads were Patriot,,,and I never had a problem with them,,but I only had about 4 or 5000 miles on them when I sold them.
Phil
Thread Starter
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Member
Joined: Dec 2007
Posts: 29
Likes: 0
From: Puyallup, WA
According to my builder/tuner. You lose about 25% through the drive-train.
I just spent almost 3K for ported heads,cams & cam gears!
Stage 3 heads & Comp cams.
Heads $1999.00 Cams & gears $800.
http://www.totalengineairflow.com/<b...ad/ford46pi2v/
You can get them for a little less at Patriot but they have had problems and are built cheep!!
https://www.patriot-performance.com/...ome.php?cat=30
And then there also Foxlake!
http://www.foxlakeracing.com/mod2.php
Phil
I just spent almost 3K for ported heads,cams & cam gears!
Stage 3 heads & Comp cams.
Heads $1999.00 Cams & gears $800.
http://www.totalengineairflow.com/<b...ad/ford46pi2v/
You can get them for a little less at Patriot but they have had problems and are built cheep!!
https://www.patriot-performance.com/...ome.php?cat=30
And then there also Foxlake!
http://www.foxlakeracing.com/mod2.php
Phil
Senior Member
Joined: Jan 1999
Posts: 7,030
Likes: 3
From: WINDSOR, ONTARIO, CANADA
HI!... Don't buy modular performance heads with cast iron valve guides. They break/crack. Get Manganese bronze guides. Don't port match the guides to the heads. Leave them alone!!!!!! The valve guide in the modular head is not very long to begin with. You take like a 1/2 inch off in port matching it. Then the valve becomes unstable and will "WALK". Trust me, I know. 