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Nov 11, 2006 | 09:59 PM

Slow00ls1T/a

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bad night

Well last night was headed out to the track and i think I spun a rod bearing It is knocking pretty loud (just got the car back running friday)
(Search was down)
will the heads still be good to use if no skip the rest

I was looking at the TSP 408 iron block i have TSP ls6 heads if there ok will they still be ok to use on the new motor

can i run the tsp giant stick with the heads i have now
Usaully what kinda power do 408's make

sorry new at the whole short block game didnt think i would ever see the day of replacing my motor

Nov 12, 2006 | 04:53 PM

Slow00ls1T/a

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t.t.t

Nov 13, 2006 | 08:44 PM

Slow00ls1T/a

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any ideas

Nov 14, 2006 | 10:22 AM

Slow00ls1T/a

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i really just need to know if the heads are still good

Nov 14, 2006 | 10:33 AM

muncie21

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From: NE Ohio

I don't see why your heads would be bad if you spun a rod bearing. Double check the valves to make sure they didn't kiss a piston and call it a day.

Nov 14, 2006 | 11:38 AM

slow trap

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From: tennessee

i would check for eyelashes on the pistons but i'm sure your heads are o.k. are your heads like a stage 1 or 2 or what ?the stage 3 works well on a 408 and with a giant they should get you to the 500 + rw range with all the boltons and decent cr,somewhere around 11:5 - 12:0 or so.

Nov 14, 2006 | 08:46 PM

Slow00ls1T/a

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i think they are stage 1 no valve job
so everything just swaps over

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Nov 14, 2006 | 11:33 PM

Slow00ls1T/a

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how restrictive are the heads going to be
I dont want to screw up the first time go with a 347 and wish i would of went bigger

Nov 14, 2006 | 11:35 PM

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orangeapeel

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From: Justin, TX

What heads do you have? Nevermind I just saw the LS6 heads in post #1.

Nov 14, 2006 | 11:39 PM

#11

jeffstar

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From: ATX

Back to your original question. Yes the heads should be just fine. I did the exact same thing on my LT1 (spun a rod bearing at 130k after making 500+ rwph for a few years) and the heads were JUST fine. I too, went to a stroker afterwards and the heads were also a hugh choke point and severly limited the motor to 400 rwph max.