Good Numbers?

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Jun 11, 2006 | 01:01 PM

00 Freak

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From: Ft. Worth

Good Numbers?

I have stage II jantzer ported heads that came w/ the car when i bought it. I finally asked the previous owner to send me the flow chart. But don't know nothing about it. So are they good numbers so that way i can start looking for new ones.Stage II Jantzer ported heads.

The heads flow 296@.570 if I recall correctly. Also the mid lift numbers are strong,

They have REV dual springs/titanium retainers, new stock gm seals & locks. They are GM 241 casting centerbolt heads (the best ones). They were milled .035".

050 36 37.5
.100 66.6 67.5
.150 100.7 102.4
.200 137.6 139.9
.250 169.7 176.2
.300 194.5 204.0
.350 217.1 229.7
.400 231.2 251.6
.450 234.6 268.7
.500 230.2 280.4
.550 234.1 291.3
.600 238.1 290.0

Last edited by 00 Freak; Jun 11, 2006 at 01:55 PM.

Jun 11, 2006 | 01:56 PM

00 Freak

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From: Ft. Worth

Got the numbers sorry.

Jun 11, 2006 | 02:15 PM

00 Freak

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From: Ft. Worth

I'm trying to decide to go w/ a new h/c setup. need some feedback. apreciate it.

Jun 11, 2006 | 02:20 PM

2000TransAmWS6

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those heads look like they flow pretty good, they're not the best that i've ever seen, but unless you're ready to shell out over $2k i'd stay with what you have.

Jun 11, 2006 | 03:19 PM

00 Freak

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From: Ft. Worth

what do u guys think? should i keep my heads.

Jun 12, 2006 | 04:14 PM

00 Freak

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From: Ft. Worth

I need some more feedback. I would appreciate it. thanks

Jun 12, 2006 | 04:34 PM

2000TransAmWS6

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From: Danville, VA

i'd keep 'em...

but, i guess my word isn't good enough

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Jun 12, 2006 | 05:06 PM

2000TransAmWS6

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From: Danville, VA

haha, thats cool man, i was just joking around

Jun 12, 2006 | 05:15 PM

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00 Freak

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From: Ft. Worth

With these heads can i install the new MS4 cam? My friend says i can't becuz they have been milled. True

Jul 7, 2006 | 08:23 PM

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Ksett

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Quote:

Originally Posted by 00 Freak

With these heads can i install the new MS4 cam? My friend says i can't becuz they have been milled. True

I believe your friend is right. Lookinig at the flow numbers if you have the money I would consider another set of heads and a cam that you can match to your setup. Maybe something smaller that you could add some compression to without flycutting.