Ported Stock L98 Heads: Quality and Price

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12-01-2003, 09:14 PM

#16

insomniac 92z28

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Join Date: Jun 2002

Posts: 48

My ported L98 cast iron heads flow 248intake@.480"lift and 181exhaust@.500" and that is on the EGR passage cylinder (Better than Vortechs) They can flow. I will tell you how it runs in about a week.

12-01-2003, 11:02 PM

#17

AutoRoc

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Join Date: Sep 1999

Location: MI

Posts: 2,342

Quote:

Originally posted by aklim
You mean this ?

They do flow match each runner and basically do pretty much anything to it. About $2350 worth.

Exactly what I mean.

Could $2350 be better spent? That price and he can't even "paper roll" the ports. If anything that would be the cheapest AND simplest procedure to include in a worked head.

An AFR 180 or 190 would be a lot more worthwhile, all while still being emmisions legal...

12-01-2003, 11:26 PM

#18

aklim

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Join Date: Mar 2001

Posts: 3,249

Quote:

Originally posted by 12Second3rdgen
The ****ty valvesprings that come on the TFS heads are what give them a bad name. I have two friends who have had valve springs break on their trick flow heads with mild hydraulic camshafts.

My valve guides on the passenger side had premature wear which was evident once the springs were off and the valves were rattling around. That caused the pushrod to wear out the guideplates and had some effect on the spring when the valves wobbled around.

12-01-2003, 11:29 PM

#19

aklim

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Join Date: Mar 2001

Posts: 3,249

Quote:

Originally posted by AutoRoc
Exactly what I mean. Could $2350 be better spent? That price and he can't even "paper roll" the ports. If anything that would be the cheapest AND simplest procedure to include in a worked head.

An AFR 180 or 190 would be a lot more worthwhile, all while still being emmisions legal...

Dunno, when they do CNC work to match each runner, it gets spendy. Of course the hardwear on the heads are not cheap either.