To port or not to port
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Teching In
Joined: Dec 2016
Posts: 19
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From: Southern California
To port or not to port Im putting together a 408ci right now that will be used with an 80/85 turbo around 8-10psi for the beginning. I eventually plan to move up slightly with boost, but nothing drastic. I'd love to eventually see 1000whp on e85, but I'm just looking for about 700whp or so on 91 and water meth for right now.
I'll be using a Trick Flow 220 Gen X as cast head. It flows about 306 at .600 lift and my cam is .221/.224 .600/.600 114LSA profile. With all that said, can I most likely reach my goals on this head, or should I be looking at some porting options?
I'll be using a Trick Flow 220 Gen X as cast head. It flows about 306 at .600 lift and my cam is .221/.224 .600/.600 114LSA profile. With all that said, can I most likely reach my goals on this head, or should I be looking at some porting options?
TECH Fanatic
Joined: Jun 2013
Posts: 1,163
Likes: 16
From: Avon, Ohio
[QUOTE=nolanator;19496552] around 8-10psi for the beginning. I eventually plan to move up slightly with boost, but nothing drastic...........
I'd love to eventually see 1000whp /QUOTE]
As for your heads, people have made more with bone stock factory castings. Porting will help you see you goals with lower boost settings.
But while you have them out, do it. Why not right? Already have the money tied up in a built motor-why stop there?
I'd love to eventually see 1000whp /QUOTE]
As for your heads, people have made more with bone stock factory castings. Porting will help you see you goals with lower boost settings.
But while you have them out, do it. Why not right? Already have the money tied up in a built motor-why stop there?
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
I guess a lot depends on who is porting them ! What they flow now vs what they might flow after any work.
But they're already aftermarket heads so will be an improvement over most stock type heads.
They'll have no difficulty making power with the right supporting components
But they're already aftermarket heads so will be an improvement over most stock type heads.
They'll have no difficulty making power with the right supporting components
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If you plan on using the cam you have don't port them. If you don't mind paying for porting, and a custom cam to optimize the new flow characteristics of the heads after porting then go for it.
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Is it an aftermarket block? You can easily split the OEM block (esp. with a 408) on an untouched OEM head casting. More so on a TF 220 head. Blocks the weak link at this point. No point porting those heads on a factory block with your goals IMO.
