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235 trickflow on 6.0 iron block?

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Old Dec 3, 2008 | 01:04 PM
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Default 235 trickflow on 6.0 iron block?

Just seeing if the 235s will work on a iron 408? I saw on the site they said there for 6 bolt head blocks. Also how do they do on a stroker vs the cnc ls3s prc?
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Old Dec 3, 2008 | 03:44 PM
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nvm got my answer i was looking for.
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Old Dec 4, 2008 | 11:05 PM
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well they have the option for the 6 bolt head to suit the lsx block-(they come out 4 bolt standard)

i dont know the valves sizes on the 235 cc tfs head-

what are they?

Thanks

Nick--
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Old Dec 4, 2008 | 11:15 PM
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Originally Posted by lilred1995vette
Just seeing if the 235s will work on a iron 408? I saw on the site they said there for 6 bolt head blocks. Also how do they do on a stroker vs the cnc ls3s prc?
I've done a few 408s with them that are near 600 RWHP.
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Old Dec 5, 2008 | 09:18 AM
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Mine did 540rwhp on an engine that had half of the pistons in backwards and consuming massive amounts of oil... This was on an Iron Block 408. These heads work...
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Old Dec 5, 2008 | 09:53 AM
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Originally Posted by racer7088
I've done a few 408s with them that are near 600 RWHP.
is this n/a. what do you see in the set ups that are bringing them close to the 600 mark besides the heads,is this common? is the exhaust and fast set up the deciding factor?

also, is it possible to run tfs235 on the 346 for awhile until you do the swap.i know it would be prob not be a good fit, but it must be better than stock heads for the time being. i would hate to throw on another 3gs on top of the engine swap for the heads alone.
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Old Dec 5, 2008 | 09:58 AM
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also, is it possible to run tfs235 on the 346 for awhile until you do the swap.i know it would be prob not be a good fit, but it must be better than stock heads for the time being. i would hate to throw on another 3gs on top of the engine swap for the heads alone.[/quote]

346 is way too small for the 235 heads. 215's are better suited for that application. Or 225's for now if you are planning on running with the 346 for now then going bigger later.
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Old Dec 5, 2008 | 10:31 AM
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Originally Posted by racer7088
I've done a few 408s with them that are near 600 RWHP.
let me know what all you put in there to make thqat kind of power. I am getting a 402 with those heads and pretty decent cam should be on the dyno today or tomorrow lokking forward to see what it will do. fast 92/92 also
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Old Dec 5, 2008 | 10:56 AM
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thanks.id rather wait then. ill just have to take out a bigger personal loan i guess lol
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Old Dec 5, 2008 | 04:19 PM
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Originally Posted by airforcemanss
is this n/a. what do you see in the set ups that are bringing them close to the 600 mark besides the heads,is this common? is the exhaust and fast set up the deciding factor?

also, is it possible to run tfs235 on the 346 for awhile until you do the swap.i know it would be prob not be a good fit, but it must be better than stock heads for the time being. i would hate to throw on another 3gs on top of the engine swap for the heads alone.

These are definitely bigger cam FAST 92 deals with good headers and everything obviously.
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Old Dec 5, 2008 | 07:51 PM
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Originally Posted by knappbunch
let me know what all you put in there to make thqat kind of power. I am getting a 402 with those heads and pretty decent cam should be on the dyno today or tomorrow lokking forward to see what it will do. fast 92/92 also
lets us know how u go

Thanks

Nick--
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Old Dec 6, 2008 | 08:37 AM
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Originally Posted by racer7088
I've done a few 408s with them that are near 600 RWHP.
where is the cam and compression in this mix? 230 240 250's?
are we talking 600whp in a 6 spd 10 bolt car with all dyno tricks?
curious how large a cam id have to go with to make mad power with a 11.5 static compression 408
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Old Dec 6, 2008 | 08:41 AM
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He's talking a good set of heads and proper valverain setup. I know he has a soild roller 408 that put down over 600. The power is made in the heads and cam selection. Yes its a big cam as well.
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Old Dec 6, 2008 | 09:05 AM
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These heads require a 4.030 bore if you order them in an ls2 4 bolt setup, others are for lsx and ls7 only. But after research theres nothing but good about them.

Last edited by lilred1995vette; Dec 6, 2008 at 11:30 PM.
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Old Dec 6, 2008 | 09:13 AM
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Originally Posted by lilred1995vette
These heads require a 4.30 bore if you order them in an ls2 4 bolt setup, others are for lsx and ls7 only. But after research theres nothing but good about them.
4.300 bore? what heads are you looking at?
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Old Dec 6, 2008 | 10:21 AM
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Originally Posted by 99blancoSS
Yes its a big cam as well.
im game with big.
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Old Dec 6, 2008 | 07:14 PM
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Originally Posted by lilred1995vette
These heads require a 4.30 bore if you order them in an ls2 4 bolt setup, others are for lsx and ls7 only. But after research theres nothing but good about them.
u kidding right?
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Old Dec 6, 2008 | 11:31 PM
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unless you know of some LSX's with a 4.3 bore then obviously it was a typo! 4.030
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